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author | Chad Rosier <mcrosier@apple.com> | 2013-02-16 01:25:28 +0000 |
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committer | Chad Rosier <mcrosier@apple.com> | 2013-02-16 01:25:28 +0000 |
commit | b56606274d43c7a3e01b18a08d1115fbf2889996 (patch) | |
tree | ea89f8db120a3b54de9e5e6d3ff083272ed9ebd6 /test/CodeGen/X86/ms-inline-asm.ll | |
parent | 42edeb1ba8aabcbe0e5cc846d9e5f2a9e2261292 (diff) | |
download | external_llvm-b56606274d43c7a3e01b18a08d1115fbf2889996.zip external_llvm-b56606274d43c7a3e01b18a08d1115fbf2889996.tar.gz external_llvm-b56606274d43c7a3e01b18a08d1115fbf2889996.tar.bz2 |
[ms-inline asm] Do not omit the frame pointer if we have ms-inline assembly.
If the frame pointer is omitted, and any stack changes occur in the inline
assembly, e.g.: "pusha", then any C local variable or C argument references
will be incorrect.
I pass no judgement on anyone who would do such a thing. ;)
rdar://13218191
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175334 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86/ms-inline-asm.ll')
-rw-r--r-- | test/CodeGen/X86/ms-inline-asm.ll | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/test/CodeGen/X86/ms-inline-asm.ll b/test/CodeGen/X86/ms-inline-asm.ll index 49fba66..64be02e 100644 --- a/test/CodeGen/X86/ms-inline-asm.ll +++ b/test/CodeGen/X86/ms-inline-asm.ll @@ -5,6 +5,7 @@ entry: %0 = tail call i32 asm sideeffect inteldialect "mov eax, $1\0A\09mov $0, eax", "=r,r,~{eax},~{dirflag},~{fpsr},~{flags}"(i32 1) nounwind ret i32 %0 ; CHECK: t1 +; CHECK: movl %esp, %ebp ; CHECK: {{## InlineAsm Start|#APP}} ; CHECK: .intel_syntax ; CHECK: mov eax, ecx @@ -18,6 +19,7 @@ entry: call void asm sideeffect inteldialect "mov eax, $$1", "~{eax},~{dirflag},~{fpsr},~{flags}"() nounwind ret void ; CHECK: t2 +; CHECK: movl %esp, %ebp ; CHECK: {{## InlineAsm Start|#APP}} ; CHECK: .intel_syntax ; CHECK: mov eax, 1 @@ -32,6 +34,7 @@ entry: call void asm sideeffect inteldialect "mov eax, DWORD PTR [$0]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"(i32* %V.addr) nounwind ret void ; CHECK: t3 +; CHECK: movl %esp, %ebp ; CHECK: {{## InlineAsm Start|#APP}} ; CHECK: .intel_syntax ; CHECK: mov eax, DWORD PTR {{[[esp]}} @@ -53,6 +56,7 @@ entry: %0 = load i32* %b1, align 4 ret i32 %0 ; CHECK: t18 +; CHECK: movl %esp, %ebp ; CHECK: {{## InlineAsm Start|#APP}} ; CHECK: .intel_syntax ; CHECK: lea ebx, foo @@ -72,6 +76,7 @@ entry: call void asm sideeffect inteldialect "call $0", "r,~{dirflag},~{fpsr},~{flags}"(void ()* @t19_helper) nounwind ret void ; CHECK: t19: +; CHECK: movl %esp, %ebp ; CHECK: movl ${{_?}}t19_helper, %eax ; CHECK: {{## InlineAsm Start|#APP}} ; CHECK: .intel_syntax @@ -90,6 +95,7 @@ entry: %0 = load i32** %res, align 4 ret i32* %0 ; CHECK: t30: +; CHECK: movl %esp, %ebp ; CHECK: {{## InlineAsm Start|#APP}} ; CHECK: .intel_syntax ; CHECK: lea edi, dword ptr [{{_?}}results] @@ -97,8 +103,8 @@ entry: ; CHECK: {{## InlineAsm End|#NO_APP}} ; CHECK: {{## InlineAsm Start|#APP}} ; CHECK: .intel_syntax -; CHECK: mov dword ptr [esp], edi +; CHECK: mov dword ptr [ebp - 8], edi ; CHECK: .att_syntax ; CHECK: {{## InlineAsm End|#NO_APP}} -; CHECK: movl (%esp), %eax +; CHECK: movl -8(%ebp), %eax } |