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| author | Eli Friedman <eli.friedman@gmail.com> | 2011-06-10 00:30:08 +0000 |
|---|---|---|
| committer | Eli Friedman <eli.friedman@gmail.com> | 2011-06-10 00:30:08 +0000 |
| commit | 88b2af7e61c4941f202214f07e2082e03045acde (patch) | |
| tree | f555012a8f41dcf910441125cd603e5b36f61f5d /test | |
| parent | d3f4eeaec177ed34a54fede9faea4ffa94c4d0af (diff) | |
Add a simple test which makes sure folding immediate float zero to a memory operand works.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132824 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/CodeGen/X86/fold-xmm-zero.ll | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/test/CodeGen/X86/fold-xmm-zero.ll b/test/CodeGen/X86/fold-xmm-zero.ll new file mode 100644 index 0000000000..65c31f054b --- /dev/null +++ b/test/CodeGen/X86/fold-xmm-zero.ll @@ -0,0 +1,34 @@ +; RUN: llc < %s -mtriple=i386-apple-macosx10.6.7 | FileCheck %s + +; Simple test to make sure folding for special constants (like float zero) +; isn't completely broken. + +; CHECK: divss LCPI0 + +%0 = type { float, float, float, float, float, float, float, float } + +define void @f() nounwind ssp { +entry: + %0 = tail call %0 asm sideeffect "foo", "={xmm0},={xmm1},={xmm2},={xmm3},={xmm4},={xmm5},={xmm6},={xmm7},0,1,2,3,4,5,6,7,~{dirflag},~{fpsr},~{flags}"(float 1.000000e+00, float 2.000000e+00, float 3.000000e+00, float 4.000000e+00, float 5.000000e+00, float 6.000000e+00, float 7.000000e+00, float 8.000000e+00) nounwind + %asmresult = extractvalue %0 %0, 0 + %asmresult8 = extractvalue %0 %0, 1 + %asmresult9 = extractvalue %0 %0, 2 + %asmresult10 = extractvalue %0 %0, 3 + %asmresult11 = extractvalue %0 %0, 4 + %asmresult12 = extractvalue %0 %0, 5 + %asmresult13 = extractvalue %0 %0, 6 + %asmresult14 = extractvalue %0 %0, 7 + %div = fdiv float %asmresult, 0.000000e+00 + %1 = tail call %0 asm sideeffect "bar", "={xmm0},={xmm1},={xmm2},={xmm3},={xmm4},={xmm5},={xmm6},={xmm7},0,1,2,3,4,5,6,7,~{dirflag},~{fpsr},~{flags}"(float %div, float %asmresult8, float %asmresult9, float %asmresult10, float %asmresult11, float %asmresult12, float %asmresult13, float %asmresult14) nounwind + %asmresult24 = extractvalue %0 %1, 0 + %asmresult25 = extractvalue %0 %1, 1 + %asmresult26 = extractvalue %0 %1, 2 + %asmresult27 = extractvalue %0 %1, 3 + %asmresult28 = extractvalue %0 %1, 4 + %asmresult29 = extractvalue %0 %1, 5 + %asmresult30 = extractvalue %0 %1, 6 + %asmresult31 = extractvalue %0 %1, 7 + %div33 = fdiv float %asmresult24, 0.000000e+00 + %2 = tail call %0 asm sideeffect "baz", "={xmm0},={xmm1},={xmm2},={xmm3},={xmm4},={xmm5},={xmm6},={xmm7},0,1,2,3,4,5,6,7,~{dirflag},~{fpsr},~{flags}"(float %div33, float %asmresult25, float %asmresult26, float %asmresult27, float %asmresult28, float %asmresult29, float %asmresult30, float %asmresult31) nounwind + ret void +} |