https://bugs.llvm.org/show_bug.cgi?id=44422
Bug ID: 44422
Summary: check_cfc: dash g generate different code with
machine-cp
Product: libraries
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: Common Code Generator Code
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Debug Info should have no effect on codegen, using check_cfc to scan
llvm_test_suite, find a bug here:
----------------------------------------------------------------------
[Reproduce]
$HOME/llvm-project/clang/utils/check_cfc/clang++
$HOME/test-suite/MultiSource/Benchmarks/Bullet/btConvexConvexAlgorithm.cpp -w
-c -O2 -I $HOME/test-suite/MultiSource/Benchmarks/Bullet/include -o tmp.ll
[result]
Check CFC, checking: dash_g_no_change, dash_s_no_change
/home/chris/test-suite/MultiSource/Benchmarks/Bullet/btConvexConvexAlgorithm.cpp
Code difference detected with -g
--- /tmp/tmpKmXkNI.o
+++ /tmp/tmp7GmGG6.o
@@ -254,6 +254,6 @@
39c: f3 41 0f 10 74 85 28 movss 0x28(%r13,%rax,4),%xmm6
3a3: f3 45 0f 10 74 8d 28 movss 0x28(%r13,%rcx,4),%xmm14
3aa: 75 06 jne 3b2
<_ZN23btConvexConvexAlgorithm16processCollisionEP17btCollisionObjectS1_RK16btDispatcherInfoP16btManifoldResult+0x1e2>
- 3ac: 0f 8b 7f 11 00 00 jnp 1531
<_ZN23btConvexConvexAlgorithm16processCollisionEP17btCollisionObjectS1_RK16btDispatcherInfoP16btManifoldResult+0x1361>
+ 3ac: 0f 8b 82 11 00 00 jnp 1534
<_ZN23btConvexConvexAlgorithm16processCollisionEP17btCollisionObjectS1_RK16btDispatcherInfoP16btManifoldResult+0x1364>
3b2: 0f 28 cd movaps %xmm5,%xmm1
3b5: f3 0f 59 cf mulss %xmm7,%xmm1
*** Diff truncated ***
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