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Diffstat (limited to 'test/CodeGen/X86/2008-02-20-InlineAsmClobber.ll')
| -rw-r--r-- | test/CodeGen/X86/2008-02-20-InlineAsmClobber.ll | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/test/CodeGen/X86/2008-02-20-InlineAsmClobber.ll b/test/CodeGen/X86/2008-02-20-InlineAsmClobber.ll new file mode 100644 index 0000000..5115e48 --- /dev/null +++ b/test/CodeGen/X86/2008-02-20-InlineAsmClobber.ll @@ -0,0 +1,24 @@ +; RUN: llc < %s | grep {a:} | not grep ax +; RUN: llc < %s | grep {b:} | not grep ax +; PR2078 +; The clobber list says that "ax" is clobbered. Make sure that eax isn't +; allocated to the input/output register. +target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128" +target triple = "i386-apple-darwin8" +@pixels = weak global i32 0 ; <i32*> [#uses=2] + +define void @test() nounwind { +entry: + %tmp = load i32* @pixels, align 4 ; <i32> [#uses=1] + %tmp1 = tail call i32 asm sideeffect "a: $0 $1", "=r,0,~{dirflag},~{fpsr},~{flags},~{ax}"( i32 %tmp ) nounwind ; <i32> [#uses=1] + store i32 %tmp1, i32* @pixels, align 4 + ret void +} + +define void @test2(i16* %block, i8* %pixels, i32 %line_size) nounwind { +entry: + %tmp1 = getelementptr i16* %block, i32 64 ; <i16*> [#uses=1] + %tmp3 = tail call i8* asm sideeffect "b: $0 $1 $2", "=r,r,0,~{dirflag},~{fpsr},~{flags},~{ax}"( i16* %tmp1, i8* %pixels ) nounwind ; <i8*> [#uses=0] + ret void +} + |