[llvm-bugs] [Bug 41888] New: [AMDGPU][MC][GFX9+] s_call_b64 and s_cbranch_i_fork do not accept labels

2019-05-15 Thread via llvm-bugs
https://bugs.llvm.org/show_bug.cgi?id=41888

Bug ID: 41888
   Summary: [AMDGPU][MC][GFX9+] s_call_b64 and s_cbranch_i_fork do
not accept labels
   Product: libraries
   Version: trunk
  Hardware: PC
OS: All
Status: NEW
  Severity: enhancement
  Priority: P
 Component: Backend: AMDGPU
  Assignee: unassignedb...@nondot.org
  Reporter: dpreobrazhen...@luxoft.com
CC: llvm-bugs@lists.llvm.org

These instructions currently accept integer expressions as jump offsets but not
labels.

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[llvm-bugs] Issue 14774 in oss-fuzz: llvm/llvm-opt-fuzzer--x86_64-loop_unroll: ASSERT: (isa(MaxNotTaken) || isa(MaxNotTaken)) && "No

2019-05-15 Thread ClusterFuzz-External via monorail via llvm-bugs

Status: New
Owner: 
CC: k...@google.com, masc...@google.com, jdevlieg...@apple.com,  
igm...@gmail.com, mit...@google.com, bigchees...@gmail.com,  
eney...@google.com, llvm-b...@lists.llvm.org, j...@chromium.org,  
v...@apple.com, mitchphi...@outlook.com, xpl...@gmail.com,  
akils...@apple.com
Labels: ClusterFuzz Stability-Memory-AddressSanitizer Reproducible  
Engine-libfuzzer Proj-llvm Reported-2019-05-15

Type: Bug

New issue 14774 by ClusterFuzz-External:  
llvm/llvm-opt-fuzzer--x86_64-loop_unroll: ASSERT:  
(isa(MaxNotTaken) || isa(MaxNotTaken))  
&& "No

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=14774

Detailed report: https://oss-fuzz.com/testcase?key=5742121455190016

Project: llvm
Fuzzer: libFuzzer_llvm_llvm-opt-fuzzer--x86_64-loop_unroll
Fuzz target binary: llvm-opt-fuzzer--x86_64-loop_unroll
Job Type: libfuzzer_asan_llvm
Platform Id: linux

Crash Type: ASSERT
Crash Address:
Crash State:
  (isa(MaxNotTaken) || isa(MaxNotTaken))  
&& "No

  llvm::ScalarEvolution::ExitLimit::ExitLimit
  llvm::ScalarEvolution::howManyGreaterThans

Sanitizer: address (ASAN)

Regressed:  
https://oss-fuzz.com/revisions?job=libfuzzer_asan_llvm=201802210603:201802211531


Reproducer Testcase:  
https://oss-fuzz.com/download?testcase_id=5742121455190016


Issue filed automatically.

See https://github.com/google/oss-fuzz/blob/master/docs/reproducing.md for  
instructions to reproduce this bug locally.


When you fix this bug, please
  * mention the fix revision(s).
  * state whether the bug was a short-lived regression or an old bug in any  
stable releases.

  * add any other useful information.
This information can help downstream consumers.

If you need to contact the OSS-Fuzz team with a question, concern, or any  
other feedback, please file an issue at  
https://github.com/google/oss-fuzz/issues.


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[llvm-bugs] [Bug 41878] wasm-ld: --trace doesn't indicate where some symbols are referenced

2019-05-15 Thread via llvm-bugs
https://bugs.llvm.org/show_bug.cgi?id=41878

Sam Clegg  changed:

   What|Removed |Added

 Resolution|FIXED   |---
 Status|RESOLVED|REOPENED

--- Comment #7 from Sam Clegg  ---
I've been asked to wait on landing that change.. so its not quite fixed yet.

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[llvm-bugs] Issue 13242 in oss-fuzz: llvm/llvm-opt-fuzzer--x86_64-gvn: ASSERT: CastInst::castIsValid(Instruction::BitCast, C, DstTy) && "Invalid constantexpr b

2019-05-15 Thread sheriff… via monorail via llvm-bugs

Updates:
Labels: Deadline-Approaching

Comment #1 on issue 13242 by sheriff...@chromium.org:  
llvm/llvm-opt-fuzzer--x86_64-gvn: ASSERT:  
CastInst::castIsValid(Instruction::BitCast, C, DstTy) && "Invalid  
constantexpr b

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=13242#c1

This bug is approaching its deadline for being fixed, and will be  
automatically derestricted within 7 days. If a fix is planned within 2  
weeks after the deadline has passed, a grace extension can be granted.


- Your friendly Sheriffbot

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[llvm-bugs] [Bug 41221] [meta] 8.0.1 Release Blockers

2019-05-15 Thread via llvm-bugs
https://bugs.llvm.org/show_bug.cgi?id=41221
Bug 41221 depends on bug 41739, which changed state.

Bug 41739 Summary: r359851 in release_80 branch causes regression in 
lld/test/ELF/eh-frame-hdr-augmentation.s
https://bugs.llvm.org/show_bug.cgi?id=41739

   What|Removed |Added

 Status|CONFIRMED   |RESOLVED
 Resolution|--- |FIXED

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[llvm-bugs] [Bug 41739] r359851 in release_80 branch causes regression in lld/test/ELF/eh-frame-hdr-augmentation.s

2019-05-15 Thread via llvm-bugs
https://bugs.llvm.org/show_bug.cgi?id=41739

Tom Stellard  changed:

   What|Removed |Added

 Status|CONFIRMED   |RESOLVED
 Resolution|--- |FIXED
 Fixed By Commit(s)|r355621 |r355621 r360792

--- Comment #2 from Tom Stellard  ---
Merged: r360792

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[llvm-bugs] [Bug 26956] [SLP] Missed opportunity to generate min/max reduction for fully unrolled loop

2019-05-15 Thread via llvm-bugs
https://bugs.llvm.org/show_bug.cgi?id=26956

Sanjay Patel  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |FIXED

--- Comment #9 from Sanjay Patel  ---
(In reply to Simon Pilgrim from comment #8)
> AFAICT the only remaining issue is what fast math flags the reduction should
> depend on, which I think is the same thing keeping [Bug #23116] open.

Yes, I think we can mark this as 'fixed' because SLP has been enhanced as
requested, and we have the other report to track the FMF work (which is
probably going to take multiple steps as noted there). 

Feel free to reopen if I got that wrong.

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[llvm-bugs] [Bug 41878] wasm-ld: --trace doesn't indicate where some symbols are referenced

2019-05-15 Thread via llvm-bugs
https://bugs.llvm.org/show_bug.cgi?id=41878

Dan Gohman  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |FIXED

--- Comment #6 from Dan Gohman  ---
Thanks!

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[llvm-bugs] [Bug 41221] [meta] 8.0.1 Release Blockers

2019-05-15 Thread via llvm-bugs
https://bugs.llvm.org/show_bug.cgi?id=41221
Bug 41221 depends on bug 41602, which changed state.

Bug 41602 Summary: Please merge lld r358547 for the 8.0.1 release
https://bugs.llvm.org/show_bug.cgi?id=41602

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |FIXED

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[llvm-bugs] [Bug 41602] Please merge lld r358547 for the 8.0.1 release

2019-05-15 Thread via llvm-bugs
https://bugs.llvm.org/show_bug.cgi?id=41602

Tom Stellard  changed:

   What|Removed |Added

 Fixed By Commit(s)|r358547 |r358547 r360791
 Status|NEW |RESOLVED
 Resolution|--- |FIXED

--- Comment #3 from Tom Stellard  ---
Merged: r360791

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[llvm-bugs] [Bug 20750] Good codegen for bitwise rotate requires code that is technically undefined behavior

2019-05-15 Thread via llvm-bugs
https://bugs.llvm.org/show_bug.cgi?id=20750

Simon Pilgrim  changed:

   What|Removed |Added

 Fixed By Commit(s)||r360605
 Status|REOPENED|RESOLVED
 Resolution|--- |FIXED

--- Comment #18 from Simon Pilgrim  ---
SGTM cheers!

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[llvm-bugs] [Bug 41889] New: clang frontend command failed due to signal

2019-05-15 Thread via llvm-bugs
https://bugs.llvm.org/show_bug.cgi?id=41889

Bug ID: 41889
   Summary: clang frontend command failed due to signal
   Product: clang
   Version: 6.0
  Hardware: PC
OS: Linux
Status: NEW
  Severity: normal
  Priority: P
 Component: Frontend
  Assignee: unassignedclangb...@nondot.org
  Reporter: tdeli...@uwaterloo.ca
CC: llvm-bugs@lists.llvm.org, neeil...@live.com,
richard-l...@metafoo.co.uk

clang encountered the following bug which I report as requested:

#0 0xb4655f23 llvm::sys::PrintStackTrace(llvm::raw_ostream&)
(/usr/lib/i386-linux-gnu/libLLVM-6.0.so.1+0x61cf23)
#1 0xb4655ffd (/usr/lib/i386-linux-gnu/libLLVM-6.0.so.1+0x61cffd)
#2 0xb4654070 llvm::sys::RunSignalHandlers()
(/usr/lib/i386-linux-gnu/libLLVM-6.0.so.1+0x61b070)
#3 0xb46541cb (/usr/lib/i386-linux-gnu/libLLVM-6.0.so.1+0x61b1cb)
#4 0xb7f24d10  0xd10 llvm::Use::getImpliedUser() const
#5 0xb7f24d10 
#6 0xb7f24d10 llvm::Use::getUser() const (+0xd10)
#7 0xb477f357 llvm::FunctionLoweringInfo::set(llvm::Function const&,
llvm::MachineFunction&, llvm::SelectionDAG*)
(/usr/lib/i386-linux-gnu/libLLVM-6.0.so.1+0x746357)
#8 0xb477f3c8
llvm::SelectionDAGISel::runOnMachineFunction(llvm::MachineFunction&)
(/usr/lib/i386-linux-gnu/libLLVM-6.0.so.1+0x7463c8)
#9 0xb4b46169 (/usr/lib/i386-linux-gnu/libLLVM-6.0.so.1+0xb0d169)
#10 0xb4c85945
llvm::MachineFunctionPass::runOnFunction(llvm::Function&)
(/usr/lib/i386-linux-gnu/libLLVM-6.0.so.1+0xc4c945)
#11 0xb62e22b7 llvm::FPPassManager::runOnFunction(llvm::Function&)
(/usr/lib/i386-linux-gnu/libLLVM-6.0.so.1+0x22a92b7)
#12 0xb490d801 llvm::FPPassManager::runOnModule(llvm::Module&)
(/usr/lib/i386-linux-gnu/libLLVM-6.0.so.1+0x8d4801)
#13 0xb4739a98 llvm::legacy::PassManagerImpl::run(llvm::Module&)
(/usr/lib/i386-linux-gnu/libLLVM-6.0.so.1+0x700a98)
#14 0xb4739b42 llvm::legacy::PassManager::run(llvm::Module&)
(/usr/lib/i386-linux-gnu/libLLVM-6.0.so.1+0x700b42)
#15 0xb473969a clang::EmitBackendOutput(clang::DiagnosticsEngine&,
clang::HeaderSearchOptions const&, clang::CodeGenOptions const&,
clang::TargetOptions const&, clang::LangOptions const&, llvm::DataLayout
const&, llvm::Module*, clang::BackendAction,
std::unique_ptr >)
(/usr/lib/i386-linux-gnu/libLLVM-6.0.so.1+0x70069a)
#16 0xb473987f (/usr/lib/i386-linux-gnu/libLLVM-6.0.so.1+0x70087f)
#17 0x0837ba10 clang::ParseAST(clang::Sema&, bool, bool)
(/usr/lib/llvm-6.0/bin/clang+0x837ba10)
#18 0x088e80c0 clang::ASTFrontendAction::ExecuteAction()
(/usr/lib/llvm-6.0/bin/clang+0x88e80c0)
#19 0x08a1fb85 clang::CodeGenAction::ExecuteAction()
(/usr/lib/llvm-6.0/bin/clang+0x8a1fb85)
#20 0x0873399e clang::FrontendAction::Execute()
(/usr/lib/llvm-6.0/bin/clang+0x873399e)
#21 0x088e784a clang::CompilerInstance::ExecuteAction(clang::FrontendAction&)
(/usr/lib/llvm-6.0/bin/clang+0x88e784a)
#22 0x08734ff9 clang::ExecuteCompilerInvocation(clang::CompilerInstance*)
(/usr/lib/llvm-6.0/bin/clang+0x8734ff9)
#23 0x086fbf11 cc1_main(llvm::ArrayRef, char const*, void*)
(/usr/lib/llvm-6.0/bin/clang+0x86fbf11)
#24 0x087beea4 main (/usr/lib/llvm-6.0/bin/clang+0x87beea4)
#25 0x083327bc __libc_start_main
/build/glibc-GoSbp4/glibc-2.23/csu/../csu/libc-start.c:291:0
#26 0x0831ff0f _start (/usr/lib/llvm-6.0/bin/clang+0x831ff0f)
/usr/lib/i386-linux-gnu/libLLVM-6.0.so.1(_ZN4llvm3sys15PrintStackTraceERNS_11raw_ostreamE+0x33)[0xb4655f23]
/usr/lib/i386-linux-gnu/libLLVM-6.0.so.1(+0x61cffd)[0xb4655ffd]
/usr/lib/i386-linux-gnu/libLLVM-6.0.so.1(_ZN4llvm3sys17RunSignalHandlersEv+0x40)[0xb4654070]
/usr/lib/i386-linux-gnu/libLLVM-6.0.so.1(+0x61b1cb)[0xb46541cb]
[0xb7f24d10]
/usr/lib/i386-linux-gnu/libLLVM-6.0.so.1(_ZNK4llvm3Use14getImpliedUserEv+0x7)[0xb477f357]
/usr/lib/i386-linux-gnu/libLLVM-6.0.so.1(_ZNK4llvm3Use7getUserEv+0x18)[0xb477f3c8]
/usr/lib/i386-linux-gnu/libLLVM-6.0.so.1(_ZN4llvm20FunctionLoweringInfo3setERKNS_8FunctionERNS_15MachineFunctionEPNS_12SelectionDAGE+0x4e9)[0xb4b46169]
/usr/lib/i386-linux-gnu/libLLVM-6.0.so.1(_ZN4llvm16SelectionDAGISel20runOnMachineFunctionERNS_15MachineFunctionE+0x415)[0xb4c85945]
/usr/lib/i386-linux-gnu/libLLVM-6.0.so.1(+0x22a92b7)[0xb62e22b7]
/usr/lib/i386-linux-gnu/libLLVM-6.0.so.1(_ZN4llvm19MachineFunctionPass13runOnFunctionERNS_8FunctionE+0x81)[0xb490d801]
/usr/lib/i386-linux-gnu/libLLVM-6.0.so.1(_ZN4llvm13FPPassManager13runOnFunctionERNS_8FunctionE+0x208)[0xb4739a98]
/usr/lib/i386-linux-gnu/libLLVM-6.0.so.1(_ZN4llvm13FPPassManager11runOnModuleERNS_6ModuleE+0x42)[0xb4739b42]
/usr/lib/i386-linux-gnu/libLLVM-6.0.so.1(_ZN4llvm6legacy15PassManagerImpl3runERNS_6ModuleE+0x34a)[0xb473969a]
/usr/lib/i386-linux-gnu/libLLVM-6.0.so.1(_ZN4llvm6legacy11PassManager3runERNS_6ModuleE+0x1f)[0xb473987f]

[llvm-bugs] [Bug 41891] New: after std::make_shared path-sensitive analysis stops

2019-05-15 Thread via llvm-bugs
https://bugs.llvm.org/show_bug.cgi?id=41891

Bug ID: 41891
   Summary: after std::make_shared path-sensitive analysis stops
   Product: clang
   Version: 7.0
  Hardware: PC
OS: Linux
Status: NEW
  Severity: enhancement
  Priority: P
 Component: Static Analyzer
  Assignee: dcough...@apple.com
  Reporter: plavsic.ognje...@gmail.com
CC: dcough...@apple.com, llvm-bugs@lists.llvm.org

#include 
int main()
{
 auto b = std::make_shared(new int(10));
 1/0;
}

After std::make_shared line of code, Static Analyzer won't throw Div by zero
warning. It works fine when i use std::make_unique, so it's really confusing.

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[llvm-bugs] [Bug 41221] [meta] 8.0.1 Release Blockers

2019-05-15 Thread via llvm-bugs
https://bugs.llvm.org/show_bug.cgi?id=41221
Bug 41221 depends on bug 41793, which changed state.

Bug 41793 Summary: Please backport r360212 to 8.0
https://bugs.llvm.org/show_bug.cgi?id=41793

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |FIXED

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[llvm-bugs] [Bug 41793] Please backport r360212 to 8.0

2019-05-15 Thread via llvm-bugs
https://bugs.llvm.org/show_bug.cgi?id=41793

Tom Stellard  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |FIXED
 Fixed By Commit(s)|r360212 |r360212 r360811

--- Comment #2 from Tom Stellard  ---
Merged: r360811

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[llvm-bugs] [Bug 41221] [meta] 8.0.1 Release Blockers

2019-05-15 Thread via llvm-bugs
https://bugs.llvm.org/show_bug.cgi?id=41221
Bug 41221 depends on bug 41603, which changed state.

Bug 41603 Summary: Please merge llvm r354846 for the 8.0.1 release
https://bugs.llvm.org/show_bug.cgi?id=41603

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |FIXED

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[llvm-bugs] [Bug 41603] Please merge llvm r354846 for the 8.0.1 release

2019-05-15 Thread via llvm-bugs
https://bugs.llvm.org/show_bug.cgi?id=41603

Tom Stellard  changed:

   What|Removed |Added

 Resolution|--- |FIXED
 Fixed By Commit(s)|r354846 |r354846 r360826
 Status|NEW |RESOLVED

--- Comment #1 from Tom Stellard  ---
Merged: r360826

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[llvm-bugs] [Bug 41883] Merge r360099 into the 8.0 branch

2019-05-15 Thread via llvm-bugs
https://bugs.llvm.org/show_bug.cgi?id=41883

Tom Stellard  changed:

   What|Removed |Added

 Resolution|--- |FIXED
 Fixed By Commit(s)|r360099 |r360099 r360793
 Status|NEW |RESOLVED

--- Comment #2 from Tom Stellard  ---
Merged: r360793

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[llvm-bugs] [Bug 41221] [meta] 8.0.1 Release Blockers

2019-05-15 Thread via llvm-bugs
https://bugs.llvm.org/show_bug.cgi?id=41221
Bug 41221 depends on bug 41883, which changed state.

Bug 41883 Summary: Merge r360099 into the 8.0 branch
https://bugs.llvm.org/show_bug.cgi?id=41883

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |FIXED

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[llvm-bugs] [Bug 40876] [aarch64] clang-cl 8.0rc2 generates unwind data that llvm-readelf cannot parse

2019-05-15 Thread via llvm-bugs
https://bugs.llvm.org/show_bug.cgi?id=40876

Nathan Froyd  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |FIXED

--- Comment #9 from Nathan Froyd  ---
Fixed in https://reviews.llvm.org/D61960  The original testcase now passes
through `llvm-readelf -unwind` with no problems.

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[llvm-bugs] [Bug 41221] [meta] 8.0.1 Release Blockers

2019-05-15 Thread via llvm-bugs
https://bugs.llvm.org/show_bug.cgi?id=41221
Bug 41221 depends on bug 41872, which changed state.

Bug 41872 Summary: Merge r359569 into the 8.0 branch
https://bugs.llvm.org/show_bug.cgi?id=41872

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |FIXED

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[llvm-bugs] [Bug 41872] Merge r359569 into the 8.0 branch

2019-05-15 Thread via llvm-bugs
https://bugs.llvm.org/show_bug.cgi?id=41872

Tom Stellard  changed:

   What|Removed |Added

 Resolution|--- |FIXED
 Fixed By Commit(s)|359569  |359569 r360801
 Status|NEW |RESOLVED

--- Comment #3 from Tom Stellard  ---
Merged: r360801

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[llvm-bugs] [Bug 41892] New: [X86][SSE] Failure to merge 2 x float stores to <2 x float> store

2019-05-15 Thread via llvm-bugs
https://bugs.llvm.org/show_bug.cgi?id=41892

Bug ID: 41892
   Summary: [X86][SSE] Failure to merge 2 x float stores to <2 x
float> store
   Product: libraries
   Version: trunk
  Hardware: PC
OS: Windows NT
Status: NEW
  Severity: enhancement
  Priority: P
 Component: Backend: X86
  Assignee: unassignedb...@nondot.org
  Reporter: llvm-...@redking.me.uk
CC: craig.top...@gmail.com, llvm-bugs@lists.llvm.org,
llvm-...@redking.me.uk, spatel+l...@rotateright.com

https://godbolt.org/z/InfZZK

#include 

void sum_pairs_128(__m128 f, float *p) {
  p[0] = f[0] + f[1];
  p[1] = f[2] + f[3];
}


clang -O3 -march=btver2

_Z13sum_pairs_128Dv4_fPf: # @_Z13sum_pairs_128Dv4_fPf
  vhaddps %xmm0, %xmm0, %xmm0
  vmovss %xmm0, (%rdi)
  vextractps $1, %xmm0, 4(%rdi)
  retq

would be better if we managed to merge to:

_Z13sum_pairs_128Dv4_fPf: # @_Z13sum_pairs_128Dv4_fPf
  vhaddps %xmm0, %xmm0, %xmm0
  vmovsd %xmm0, (%rdi)
  retq

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[llvm-bugs] [Bug 41890] error: assembler label '' can not be undefined

2019-05-15 Thread via llvm-bugs
https://bugs.llvm.org/show_bug.cgi?id=41890

Reid Kleckner  changed:

   What|Removed |Added

 CC||r...@google.com
 Status|NEW |RESOLVED
 Resolution|--- |FIXED
 Fixed By Commit(s)||r360818

--- Comment #1 from Reid Kleckner  ---
Thanks for the report, this should be fixed by r360818.

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[llvm-bugs] [Bug 41818] Merge r355141 to 8.0.1

2019-05-15 Thread via llvm-bugs
https://bugs.llvm.org/show_bug.cgi?id=41818

Tom Stellard  changed:

   What|Removed |Added

 Fixed By Commit(s)|r355141 |r355141 r360803
 Resolution|--- |FIXED
 Status|NEW |RESOLVED

--- Comment #3 from Tom Stellard  ---
Merged: r360803

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[llvm-bugs] [Bug 41221] [meta] 8.0.1 Release Blockers

2019-05-15 Thread via llvm-bugs
https://bugs.llvm.org/show_bug.cgi?id=41221
Bug 41221 depends on bug 41818, which changed state.

Bug 41818 Summary: Merge r355141 to 8.0.1
https://bugs.llvm.org/show_bug.cgi?id=41818

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |FIXED

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[llvm-bugs] [Bug 41873] Merge r360674 into 8.0

2019-05-15 Thread via llvm-bugs
https://bugs.llvm.org/show_bug.cgi?id=41873

Tom Stellard  changed:

   What|Removed |Added

 Resolution|--- |FIXED
 Status|NEW |RESOLVED
 Fixed By Commit(s)|360674  |360674 r360828

--- Comment #3 from Tom Stellard  ---
Merged: r360828

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[llvm-bugs] [Bug 41221] [meta] 8.0.1 Release Blockers

2019-05-15 Thread via llvm-bugs
https://bugs.llvm.org/show_bug.cgi?id=41221
Bug 41221 depends on bug 41873, which changed state.

Bug 41873 Summary: Merge r360674 into 8.0
https://bugs.llvm.org/show_bug.cgi?id=41873

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |FIXED

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[llvm-bugs] [Bug 41879] Please can we get a component for "wasm" under "lld"

2019-05-15 Thread via llvm-bugs
https://bugs.llvm.org/show_bug.cgi?id=41879

Kristof Beyls  changed:

   What|Removed |Added

 Resolution|--- |FIXED
 CC||kristof.be...@arm.com
 Status|NEW |RESOLVED

--- Comment #1 from Kristof Beyls  ---
Hi Sam,

I just created a wasm component under lld.
I added yourself to the default cc list.
If other people should be added too, let us know!

Thanks,

Kristof

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[llvm-bugs] [Bug 41880] New: ~RTDyldMemoryManager should call deregisterEHFrames

2019-05-15 Thread via llvm-bugs
https://bugs.llvm.org/show_bug.cgi?id=41880

Bug ID: 41880
   Summary: ~RTDyldMemoryManager should call deregisterEHFrames
   Product: libraries
   Version: trunk
  Hardware: PC
OS: Linux
Status: NEW
  Severity: normal
  Priority: P
 Component: OrcJIT
  Assignee: unassignedb...@nondot.org
  Reporter: tneum...@users.sourceforge.net
CC: 1101.deb...@gmail.com, llvm-bugs@lists.llvm.org

The class RTDyldMemoryManager does not de-register the exception handling
frames automatically when the memory manager is destroyed. This leads to
crashes in C++ exception handling when an exception is thrown after an orc JIT
instance is destroyed.

The problem can be fixed trivially by calling deregisterEHFrames from the
destructor of RTDyldMemoryManager. This is a regression introduced by llvm 8,
and is probably an oversight caused by code movement.

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[llvm-bugs] [Bug 31141] opt crashes while running "Loop Pass Manager" pass: Assertion `LICM.getLoopToAliasSetMap().empty() && "Didn't free loop alias sets"' failed

2019-05-15 Thread via llvm-bugs
https://bugs.llvm.org/show_bug.cgi?id=31141

Hans Wennborg  changed:

   What|Removed |Added

 Resolution|--- |WORKSFORME
 Status|NEW |RESOLVED

--- Comment #8 from Hans Wennborg  ---
I also can't repro using the original source in the first comment.

Let's close this.

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[llvm-bugs] [Bug 31141] opt crashes while running "Loop Pass Manager" pass: Assertion `LICM.getLoopToAliasSetMap().empty() && "Didn't free loop alias sets"' failed

2019-05-15 Thread via llvm-bugs
https://bugs.llvm.org/show_bug.cgi?id=31141

Florian Hahn  changed:

   What|Removed |Added

 Resolution|WORKSFORME  |FIXED
 Fixed By Commit(s)||360704

--- Comment #9 from Florian Hahn  ---
Yep r360704 solves this issue, by weakening the assertion to allow top-level
loops to remain in LoopToAliasSetMap. 

We subsequently clear the map during finalization. There is not much else we
can do with the current structure, as the removed loop object is already
invalid when we call back to LICM to clean up the map.

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[llvm-bugs] [Bug 41883] New: Merge r360099 into the 8.0 branch

2019-05-15 Thread via llvm-bugs
https://bugs.llvm.org/show_bug.cgi?id=41883

Bug ID: 41883
   Summary: Merge r360099 into the 8.0 branch
   Product: new-bugs
   Version: 8.0
  Hardware: PC
OS: All
Status: NEW
  Severity: normal
  Priority: P
 Component: new bugs
  Assignee: unassignedb...@nondot.org
  Reporter: dimi...@andric.com
CC: htmldevelo...@gmail.com, llvm-bugs@lists.llvm.org

Please merge https://reviews.llvm.org/rL360099 into the 8.0 branch.  This fixes
bug 41417, which is about a fatal error "Bad machine code: Using an undefined
physical register", when using -fstack-protector-strong on armv6.

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[llvm-bugs] Issue 10250 in oss-fuzz: llvm: Build failure

2019-05-15 Thread ClusterFuzz-External via monorail via llvm-bugs


Comment #56 on issue 10250 by ClusterFuzz-External: llvm: Build failure
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10250#c56

Friendly reminder that the the build is still failing.
Please try to fix this failure to ensure that fuzzing remains productive.
Latest build log:  
https://oss-fuzz-build-logs.storage.googleapis.com/log-b5a0c634-8237-4b1a-b70b-a40f702750df.txt


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[llvm-bugs] [Bug 41881] New: [DebugInfo@O2] SimplifyCFG sink splitting drops a variable location

2019-05-15 Thread via llvm-bugs
https://bugs.llvm.org/show_bug.cgi?id=41881

Bug ID: 41881
   Summary: [DebugInfo@O2] SimplifyCFG sink splitting drops a
variable location
   Product: libraries
   Version: trunk
  Hardware: PC
OS: Linux
Status: NEW
  Keywords: wrong-debug
  Severity: normal
  Priority: P
 Component: Scalar Optimizations
  Assignee: unassignedb...@nondot.org
  Reporter: jeremy.morse.l...@gmail.com
CC: chackz0...@gmail.com, greg.bedw...@sony.com,
llvm-bugs@lists.llvm.org, orlando.hy...@sony.com,
paul.robin...@am.sony.com, stephen.to...@sony.com
Blocks: 38768

With llvm/clang r359863, running "clang -emit-llvm -O2 -g -S" on the code
below, the dbg.value representing the assignment of "local = q" is dropped by
SimplifyCFG. From the names of the basic blocks, it would appear to be the
SinkCommonCodeFromPredecessors function that does the dropping.

8<
volatile int g, *x;

int baz(int p, int q) {
  int local;

  local = p;
  switch (g) {
  case 1:
x[1] = local;
g += p;
break; 
  case 2:
x[1] += p;
break;
  case 3:
local = q;
g++;
break;
  }

  return 4 + q;
}
>8

In this particular test case the impact of dropping the "local=q" assignment is
that the "local=p" assignment dominates all blocks, and an incorrect location
for "local" is produce in the "case 3" and exit block. (Didn't test this as far
as a debugger because I believe the error is fairly clear).


Referenced Bugs:

https://bugs.llvm.org/show_bug.cgi?id=38768
[Bug 38768] [meta][DebugInfo] Umbrella bug for poor debug experiences
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[llvm-bugs] [Bug 41882] New: Non-type template params with braced-init-list initializers are not supported

2019-05-15 Thread via llvm-bugs
https://bugs.llvm.org/show_bug.cgi?id=41882

Bug ID: 41882
   Summary: Non-type template params with braced-init-list
initializers are not supported
   Product: clang
   Version: trunk
  Hardware: PC
OS: Linux
Status: NEW
  Severity: enhancement
  Priority: P
 Component: C++
  Assignee: unassignedclangb...@nondot.org
  Reporter: blitzrak...@gmail.com
CC: blitzrak...@gmail.com, dgre...@apple.com,
erik.pilking...@gmail.com, llvm-bugs@lists.llvm.org,
richard-l...@metafoo.co.uk

template  void f(); // expected expression

One of the things nobody uses, it doesn't even have a TODO somewhere or a
intentionally broken test AFAICT. 

We should probably start supporting this, with C++2a's class type non-type
template parameters potentially making this kind of construct more popular. :)

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[llvm-bugs] [Bug 41887] New: many check-fuzzer tests on linux when using the monorepo

2019-05-15 Thread via llvm-bugs
https://bugs.llvm.org/show_bug.cgi?id=41887

Bug ID: 41887
   Summary: many check-fuzzer tests on linux when using the
monorepo
   Product: new-bugs
   Version: trunk
  Hardware: PC
OS: Linux
Status: NEW
  Severity: enhancement
  Priority: P
 Component: new bugs
  Assignee: unassignedb...@nondot.org
  Reporter: h...@chromium.org
CC: htmldevelo...@gmail.com, llvm-bugs@lists.llvm.org

I don't know if my machine is cursed in some way, but running "check-fuzzer" in
a monorepo build on my google linux workstations leads to many test failures.
Is it just me? It looks like they're hitting an internal ld.bfd error :-/

$ git clone --depth 1 https://github.com/llvm/llvm-project/ && mkdir
llvm-project/build && cd llvm-project/build && cmake -GNinja
-DCMAKE_BUILD_TYPE=Release -DLLVM_ENABLE_ASSERTIONS=ON
-DLLVM_ENABLE_PROJECTS="clang;compiler-rt;lld" ../llvm && ninja check-fuzzer

[...]


Testing: 0 .. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90.. 
FAIL: libFuzzer :: large.test (114 of 114)
 TEST 'libFuzzer :: large.test' FAILED 
Script:
--
: 'RUN: at line 2'; /tmp/nanana/llvm-project/build/./bin/clang 
--driver-mode=g++ -std=c++11 -O2 -gline-tables-only -fsanitize=address,fuzzer
-I/tmp/nanana/llvm-project/compiler-rt/lib/fuzzer -m32
/tmp/nanana/llvm-project/compiler-rt/test/fuzzer/LargeTest.cpp -o
/tmp/nanana/llvm-project/build/projects/compiler-rt/test/fuzzer/I386DefaultLinuxConfig/Output/large.test.tmp-LargeTest
: 'RUN: at line 3';   
/tmp/nanana/llvm-project/build/projects/compiler-rt/test/fuzzer/I386DefaultLinuxConfig/Output/large.test.tmp-LargeTest
-runs=1
: 'RUN: at line 4';   env ASAN_OPTIONS=handle_segv=0 
/tmp/nanana/llvm-project/build/projects/compiler-rt/test/fuzzer/I386DefaultLinuxConfig/Output/large.test.tmp-LargeTest
-runs=1 -lazy_counters=1 2>&1 | FileCheck
/tmp/nanana/llvm-project/compiler-rt/test/fuzzer/large.test
: 'RUN: at line 5';
/tmp/nanana/llvm-project/build/projects/compiler-rt/test/fuzzer/I386DefaultLinuxConfig/Output/large.test.tmp-LargeTest
-runs=1 -lazy_counters=1 2>&1 | FileCheck
/tmp/nanana/llvm-project/compiler-rt/test/fuzzer/large.test
--
Exit Code: 1

Command Output (stderr):
--
/usr/bin/ld: internal error ../../ld/ldlang.c 6635
clang-9: error: linker command failed with exit code 1 (use -v to see
invocation)

--


Testing Time: 18.57s

Failing Tests (97):
libFuzzer :: acquire-crash-state.test
libFuzzer :: bad-strcmp.test
libFuzzer :: bogus-initialize.test
libFuzzer :: buffer-overflow-on-input.test
libFuzzer :: caller-callee.test
libFuzzer :: cleanse.test
libFuzzer :: counters.test
libFuzzer :: coverage.test
libFuzzer :: cross_over.test
libFuzzer :: cxxstring.test
libFuzzer :: deep-recursion.test
libFuzzer :: deprecated-instrumentation.test
libFuzzer :: disable-leaks.test
libFuzzer :: dso.test
libFuzzer :: exit-report.test
libFuzzer :: exit_on_src_pos.test
libFuzzer :: extra-counters.test
libFuzzer :: features_dir.test
libFuzzer :: fork-sigusr.test
libFuzzer :: fork-ubsan.test
libFuzzer :: fork.test
libFuzzer :: full-coverage-set.test
libFuzzer :: fuzzer-alignment-assumption.test
libFuzzer :: fuzzer-customcrossover.test
libFuzzer :: fuzzer-customcrossoverandmutate.test
libFuzzer :: fuzzer-custommutator.test
libFuzzer :: fuzzer-dict.test
libFuzzer :: fuzzer-dirs.test
libFuzzer :: fuzzer-fdmask.test
libFuzzer :: fuzzer-finalstats.test
libFuzzer :: fuzzer-flags.test
libFuzzer :: fuzzer-implicit-integer-sign-change.test
libFuzzer :: fuzzer-implicit-signed-integer-truncation-or-sign-change.test
libFuzzer :: fuzzer-implicit-signed-integer-truncation.test
libFuzzer :: fuzzer-implicit-unsigned-integer-truncation.test
libFuzzer :: fuzzer-leak.test
libFuzzer :: fuzzer-oom-with-profile.test
libFuzzer :: fuzzer-oom.test
libFuzzer :: fuzzer-printcovpcs.test
libFuzzer :: fuzzer-runs.test
libFuzzer :: fuzzer-seed.test
libFuzzer :: fuzzer-segv.test
libFuzzer :: fuzzer-singleinputs.test
libFuzzer :: fuzzer-threaded.test
libFuzzer :: fuzzer-timeout.test
libFuzzer :: fuzzer-ubsan.test
libFuzzer :: initialize.test
libFuzzer :: large.test
libFuzzer :: len_control.test
libFuzzer :: libcxx.test
libFuzzer :: max-number-of-runs.test
libFuzzer :: memcmp.test
libFuzzer :: memcmp64.test
libFuzzer :: merge-control-file.test
libFuzzer :: merge-posix.test
libFuzzer :: merge-sigusr.test
libFuzzer :: merge.test
libFuzzer :: minimize_crash.test
libFuzzer :: minimize_two_crashes.test
libFuzzer :: not-instrumented.test
libFuzzer :: null-deref-on-empty.test
libFuzzer :: null-deref.test
  

[llvm-bugs] [Bug 41886] New: -d/-r/-j should not require relocation sections be specified with -j

2019-05-15 Thread via llvm-bugs
https://bugs.llvm.org/show_bug.cgi?id=41886

Bug ID: 41886
   Summary: -d/-r/-j should not require relocation sections be
specified with -j
   Product: tools
   Version: trunk
  Hardware: PC
OS: Windows NT
Status: NEW
  Severity: normal
  Priority: P
 Component: llvm-objdump
  Assignee: unassignedb...@nondot.org
  Reporter: jh7370.2...@my.bristol.ac.uk
CC: llvm-bugs@lists.llvm.org

llvm-objdump -d -r prints relocations inline with the disassembly as follows:

C:\> llvm-objdump -d -r test.o

Disassembly of section .text:

0400 .text:
 400: e8 00 00 00 00callq   0 <.text+0x5>
0401:  R_X86_64_PC32foo+1
0401:  R_X86_64_GOT32   foo

Disassembly of section .text2:

0401 .text2:
 401: 90nop
 402: e8 00 00 00 00callq   0 <.text2+0x6>
0402:  R_X86_64_PLT32   foo+2

This is the same behaviour as GNU objdump. However, if you apply --section, the
behaviour differs. --section for GNU objdump reduces the disassembly down to
the listed sections, and prints all the relocations for those sections (note,
the below output is approximate, and not exactly what GNU objdump prints, but
is used for illustration purposes):

C:\> objdump -d -r test.o --section .text

Disassembly of section .text:

0400 .text:
 400: e8 00 00 00 00callq   0 <.text+0x5>
0401:  R_X86_64_PC32foo+1 //from .rela.text
0401:  R_X86_64_GOT32   foo   //from
.rela2.text

llvm-objdump only prints the relocations that come from the listed relocations:

C:\> llvm-objdump -d -r test.o --section .text

Disassembly of section .text:

0400 .text:
 400: e8 00 00 00 00callq   0 <.text+0x5>
// No relocations printed

C:\> llvm-objdump -d -r test.o --section .text --rela.text

Disassembly of section .text:

0400 .text:
 400: e8 00 00 00 00callq   0 <.text+0x5>
0401:  R_X86_64_PC32foo+1 //from .rela.text

Intuitively, I didn't expect llvm-objdump to behave the way it does, even
without coming from a GNU background. The behaviour is subtle and could easily
break users. I think we should change the behaviour to match GNU and always
print the relocations for the sections that are disassembled, not just the
filtered set of relocations.

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[llvm-bugs] [Bug 41890] New: error: assembler label '' can not be undefined

2019-05-15 Thread via llvm-bugs
https://bugs.llvm.org/show_bug.cgi?id=41890

Bug ID: 41890
   Summary: error: assembler label '' can not be undefined
   Product: clang
   Version: 8.0
  Hardware: PC
OS: Windows NT
Status: NEW
  Severity: enhancement
  Priority: P
 Component: C++
  Assignee: unassignedclangb...@nondot.org
  Reporter: tiagomacar...@gmail.com
CC: blitzrak...@gmail.com, dgre...@apple.com,
erik.pilking...@gmail.com, llvm-bugs@lists.llvm.org,
richard-l...@metafoo.co.uk

One of our open-source projects is failing to build with clang in 32 bits:
https://github.com/microsoft/wil/issues/7

I tracked down the minimal repro to be:

#include 
void f()
{
 __annotation(L"");
 __int2c();
}

clang-cl.exe -c -m32 -Zi a.cpp
error: assembler label '' can not be undefined
error: assembler label '' can not be undefined
2 errors generated.

It works fine without the -m32 flag.

RNK take on the issue:
It looks like I misclassified the label as an EH_LABEL, and some pass is
dropping it. I'm not sure why the -m32 flag matters, but I don't think it will
be hard to fix.

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[llvm-bugs] [Bug 41885] New: Variable with end part that is optimized out is printed incorrectly

2019-05-15 Thread via llvm-bugs
https://bugs.llvm.org/show_bug.cgi?id=41885

Bug ID: 41885
   Summary: Variable with end part that is optimized out is
printed incorrectly
   Product: libraries
   Version: trunk
  Hardware: PC
OS: Linux
Status: NEW
  Severity: enhancement
  Priority: P
 Component: DebugInfo
  Assignee: unassignedb...@nondot.org
  Reporter: david.stenb...@ericsson.com
CC: jdevliegh...@apple.com, keith.wal...@arm.com,
llvm-bugs@lists.llvm.org,
paul_robin...@playstation.sony.com

When compiling the following example:

  extern int ext;
  volatile int global;

  int main() {
int arr[32] = {123};
global = arr[0];
arr[0] = ext;
return 0;
  }

with Clang (trunk) respectively GCC (8.3.0), you get different location
information about the optimized out elements at the end of arr:

  $ clang -O3 -g opt-end.c -o clang.out
  $ llvm-dwarfdump clang.out | grep -B2 -P "DW_AT_name.*arr"
  DW_AT_location(0x
 [0x00400480,  0x0040048a): DW_OP_constu
0x7b, DW_OP_stack_value, DW_OP_piece 0x4)
  DW_AT_name("arr")

 $ gcc-8 -O3 -g -gstrict-dwarf opt-end.c -o gcc.out
 $ llvm-dwarfdump gcc.out | grep -A5 -P "DW_AT_name.*arr" | grep -vP
"DW_AT_decl|DW_AT_type"
  DW_AT_name("arr")
  DW_AT_location(0x
 [0x04f0,  0x04fa): DW_OP_const1u
0x7b, DW_OP_stack_value, DW_OP_piece 0x4, DW_OP_piece 0x7c)

As seen, GCC emits an explicit empty location description piece which covers
the optimized out elements at the end of the array, whereas Clang does not emit
that.

This results in the elements being printed out with garbage data when debugging
the Clang binary in LLDB (7.0):

  $ lldb-7 clang.out
  (lldb) target create "clang.out"
  Current executable set to 'clang.out' (x86_64).
  (lldb) b main
  Breakpoint 1: where = clang.out`main at opt-end.c:6, address =
0x00400480
  (lldb) run
  Process 22244 launched: '/home/edasten/upstream/master/clang.out' (x86_64)
  Process 22244 stopped
  * thread #1, name = 'clang.out', stop reason = breakpoint 1.1
  frame #0: 0x00400480 clang.out`main at opt-end.c:6
 3  
 4  int main() {
 5int arr[32] = {123};
  -> 6global = arr[0];
 7arr[0] = ext;
 8return 0;
 9  }
  (lldb) print arr
  (int [32]) $0 = {
[0] = 123
[1] = 0
[2] = -1579873760
[3] = 32657
[4] = 32
[and so on...]

Also, in GDB (8.2.1) the elements are printed as  instead of
:

 (gdb) print arr
 $1 = {123,  }

It is unclear to me if the producer must cover the whole variable when emitting
composite location descriptions, or if the consumers should be able to handle
that, assuming that parts that are not explicitly covered are implicitly
covered by empty location descriptions. I did not manage to find anything in
the DWARF 4 and 5 standards that mandate the former (but I may of course have
missed it).

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[llvm-bugs] [Bug 41866] Building with -D LLVM_ENABLE_PROJECTS='clang; lldb' on macOS errors for missing dependency target "cxx"

2019-05-15 Thread via llvm-bugs
https://bugs.llvm.org/show_bug.cgi?id=41866

J. Ryan Stinnett  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |FIXED
 Fixed By Commit(s)||360756

--- Comment #2 from J. Ryan Stinnett  ---
Fixed by https://reviews.llvm.org/rL360756.

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[llvm-bugs] [Bug 41884] New: [ARM] MachineScheduler can increase code size

2019-05-15 Thread via llvm-bugs
https://bugs.llvm.org/show_bug.cgi?id=41884

Bug ID: 41884
   Summary: [ARM] MachineScheduler can increase code size
   Product: libraries
   Version: trunk
  Hardware: PC
OS: Linux
Status: NEW
  Severity: enhancement
  Priority: P
 Component: Backend: ARM
  Assignee: unassignedb...@nondot.org
  Reporter: david.gr...@arm.com
CC: llvm-bugs@lists.llvm.org, peter.sm...@linaro.org,
ties.st...@arm.com

When compiling Thumb2 code, the machine scheduler can end up increasing code
size.

If the scheduler uses more (virtual) registers, we will end up with more usage
of high registers, and be able to convert less instruction to T1.

Here is an example, showing the code it was producing:
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc %s -o - | FileCheck %s

target datalayout = "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64"
target triple = "thumbv7em-arm-none-eabi"

%struct.a = type { i32, %struct.b*, i8, i8, i8, i8, i8*, %struct.b*, i16, i16,
i16, i16, i16, i16, i16, i16, i32, i32, i32, i32, i32, i32, i32 }
%struct.b = type { i8, i8, i8, i8, i32, i16, i16, i32, i32, i32, i32, [16 x
i8], [64 x i8], [128 x i8], i32, [68 x i8] }

define void @test(%struct.a* nocapture %dhcp, i16 zeroext %value) #0 {
; CHECK-LABEL: test:
; CHECK:   @ %bb.0: @ %entry
; CHECK-NEXT:.save {r7, lr}
; CHECK-NEXT:push {r7, lr}
; CHECK-NEXT:ldrh r3, [r0, #20]
; CHECK-NEXT:ldr.w lr, [r0, #16]
; CHECK-NEXT:lsr.w r12, r1, #8
; CHECK-NEXT:adds r2, r3, #1
; CHECK-NEXT:strh r2, [r0, #20]
; CHECK-NEXT:add.w r2, lr, r3
; CHECK-NEXT:strb.w r12, [r2, #240]
; CHECK-NEXT:ldrh r2, [r0, #20]
; CHECK-NEXT:ldr.w r12, [r0, #16]
; CHECK-NEXT:adds r3, r2, #1
; CHECK-NEXT:strh r3, [r0, #20]
; CHECK-NEXT:add.w r0, r12, r2
; CHECK-NEXT:strb.w r1, [r0, #240]
; CHECK-NEXT:pop {r7, pc}
entry:
  %shr = lshr i16 %value, 8
  %conv1 = trunc i16 %shr to i8
  %msg_out = getelementptr inbounds %struct.a, %struct.a* %dhcp, i32 0, i32 7
  %0 = load %struct.b*, %struct.b** %msg_out, align 4
  %options_out_len = getelementptr inbounds %struct.a, %struct.a* %dhcp, i32 0,
i32 8
  %1 = load i16, i16* %options_out_len, align 4
  %inc = add i16 %1, 1
  store i16 %inc, i16* %options_out_len, align 4
  %idxprom = zext i16 %1 to i32
  %arrayidx = getelementptr inbounds %struct.b, %struct.b* %0, i32 0, i32 15,
i32 %idxprom
  store i8 %conv1, i8* %arrayidx, align 1
  %conv4 = trunc i16 %value to i8
  %2 = load %struct.b*, %struct.b** %msg_out, align 4
  %3 = load i16, i16* %options_out_len, align 4
  %inc8 = add i16 %3, 1
  store i16 %inc8, i16* %options_out_len, align 4
  %idxprom9 = zext i16 %3 to i32
  %arrayidx10 = getelementptr inbounds %struct.b, %struct.b* %2, i32 0, i32 15,
i32 %idxprom9
  store i8 %conv4, i8* %arrayidx10, align 1
  ret void
}

attributes #0 = { minsize optsize "target-cpu"="cortex-m4" }


For the moment, in D61882, we are disabling the machine scheduler in these
cases.

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