[PATCH] D71688: [AArch64] Add -mtls-size option for ELF targets

2020-01-13 Thread Peter Smith via Phabricator via cfe-commits 
peter.smith added a comment.

Committed as 10c11e4e2d05cf0e8f8251f50d84ce77eb1e9b8d 
 , I've 
used the new attribution process https://llvm.org/docs/DeveloperPolicy.html so 
you should show up as the author of the patch in the commit log. I'll comment 
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Repository:
  rG LLVM Github Monorepo

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[PATCH] D71688: [AArch64] Add -mtls-size option for ELF targets

2020-01-13 Thread Peter Smith via Phabricator via cfe-commits 
This revision was automatically updated to reflect the committed changes.
Closed by commit rG10c11e4e2d05: This option allows selecting the TLS size in 
the local exec TLS model, which is… (authored by kawashima-fj, committed by 
peter.smith).
Herald added a subscriber: cfe-commits.

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D71688/new/

https://reviews.llvm.org/D71688

Files:
  clang/include/clang/Basic/CodeGenOptions.def
  clang/include/clang/Driver/Options.td
  clang/lib/CodeGen/BackendUtil.cpp
  clang/lib/Driver/ToolChains/Clang.cpp
  clang/lib/Frontend/CompilerInvocation.cpp
  clang/test/Driver/tls-size.c
  llvm/include/llvm/CodeGen/CommandFlags.inc
  llvm/include/llvm/Target/TargetOptions.h
  llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
  llvm/lib/Target/AArch64/AArch64ISelLowering.h
  llvm/lib/Target/AArch64/AArch64TargetMachine.cpp
  llvm/test/CodeGen/AArch64/arm64-tls-execs.ll
  llvm/test/CodeGen/AArch64/arm64-tls-initial-exec.ll
  llvm/test/CodeGen/AArch64/arm64-tls-local-exec.ll

Index: llvm/test/CodeGen/AArch64/arm64-tls-local-exec.ll
===
--- /dev/null
+++ llvm/test/CodeGen/AArch64/arm64-tls-local-exec.ll
@@ -0,0 +1,106 @@
+; Test each TLS size option
+; RUN: llc -mtriple=arm64-none-linux-gnu -verify-machineinstrs -show-mc-encoding -tls-size=12 < %s | FileCheck %s --check-prefix=CHECK-12
+; RUN: llc -mtriple=arm64-none-linux-gnu -filetype=obj < %s -tls-size=12 | llvm-objdump -r - | FileCheck --check-prefix=CHECK-12-RELOC %s
+; RUN: llc -mtriple=arm64-none-linux-gnu -verify-machineinstrs -show-mc-encoding -code-model=tiny -tls-size=24 < %s | FileCheck %s --check-prefix=CHECK-24
+; RUN: llc -mtriple=arm64-none-linux-gnu -filetype=obj < %s -code-model=tiny -tls-size=24 | llvm-objdump -r - | FileCheck --check-prefix=CHECK-24-RELOC %s
+; RUN: llc -mtriple=arm64-none-linux-gnu -verify-machineinstrs -show-mc-encoding -code-model=small -tls-size=32 < %s | FileCheck %s --check-prefix=CHECK-32
+; RUN: llc -mtriple=arm64-none-linux-gnu -filetype=obj < %s -code-model=small -tls-size=32 | llvm-objdump -r - | FileCheck --check-prefix=CHECK-32-RELOC %s
+; RUN: llc -mtriple=arm64-none-linux-gnu -verify-machineinstrs -show-mc-encoding -code-model=large -tls-size=48 < %s | FileCheck %s --check-prefix=CHECK-48
+; RUN: llc -mtriple=arm64-none-linux-gnu -filetype=obj < %s -code-model=large -tls-size=48 | llvm-objdump -r - | FileCheck --check-prefix=CHECK-48-RELOC %s
+;
+; Test the maximum TLS size for each code model (fallback to a smaller size from the specified size)
+; RUN: llc -mtriple=arm64-none-linux-gnu -verify-machineinstrs -show-mc-encoding -tls-size=32 < %s | FileCheck %s --check-prefix=CHECK-32
+; RUN: llc -mtriple=arm64-none-linux-gnu -filetype=obj < %s -tls-size=32 | llvm-objdump -r - | FileCheck --check-prefix=CHECK-32-RELOC %s
+; RUN: llc -mtriple=arm64-none-linux-gnu -verify-machineinstrs -show-mc-encoding -code-model=tiny -tls-size=32 < %s | FileCheck %s --check-prefix=CHECK-24
+; RUN: llc -mtriple=arm64-none-linux-gnu -filetype=obj < %s -code-model=tiny -tls-size=32 | llvm-objdump -r - | FileCheck --check-prefix=CHECK-24-RELOC %s
+; RUN: llc -mtriple=arm64-none-linux-gnu -verify-machineinstrs -show-mc-encoding -code-model=small -tls-size=48 < %s | FileCheck %s --check-prefix=CHECK-32
+; RUN: llc -mtriple=arm64-none-linux-gnu -filetype=obj < %s -code-model=small -tls-size=48 | llvm-objdump -r - | FileCheck --check-prefix=CHECK-32-RELOC %s
+;
+; Test the default TLS size for each code model
+; RUN: llc -mtriple=arm64-none-linux-gnu -verify-machineinstrs -show-mc-encoding < %s | FileCheck --check-prefix=CHECK-24 %s
+; RUN: llc -mtriple=arm64-none-linux-gnu -filetype=obj < %s | llvm-objdump -r - | FileCheck --check-prefix=CHECK-24-RELOC %s
+; RUN: llc -mtriple=arm64-none-linux-gnu -verify-machineinstrs -show-mc-encoding -code-model=tiny < %s | FileCheck %s --check-prefix=CHECK-24
+; RUN: llc -mtriple=arm64-none-linux-gnu -filetype=obj < %s -code-model=tiny | llvm-objdump -r - | FileCheck --check-prefix=CHECK-24-RELOC %s
+; RUN: llc -mtriple=arm64-none-linux-gnu -verify-machineinstrs -show-mc-encoding -code-model=small < %s | FileCheck %s --check-prefix=CHECK-24
+; RUN: llc -mtriple=arm64-none-linux-gnu -filetype=obj < %s -code-model=small | llvm-objdump -r - | FileCheck --check-prefix=CHECK-24-RELOC %s
+; RUN: llc -mtriple=arm64-none-linux-gnu -verify-machineinstrs -show-mc-encoding -code-model=large < %s | FileCheck %s --check-prefix=CHECK-24
+; RUN: llc -mtriple=arm64-none-linux-gnu -filetype=obj < %s -code-model=large | llvm-objdump -r - | FileCheck --check-prefix=CHECK-24-RELOC %s
+
+@local_exec_var = thread_local(localexec) global i32 0
+
+define i32 @test_local_exec() {
+; CHECK-LABEL: test_local_exec:
+  %val = load i32, i32* @local_exec_var
+
+; CHECK-12: mrs x[[R1:[0-9]+]], TPIDR_EL0
+; CHECK-12: add x[[R2:[0-9]+]], x[[R1]], :tprel_lo12:local_exec_var
+; CHECK-12: ldr w0,