diff options
Diffstat (limited to 'test/CodeGen/X86/sse-commute.ll')
| -rw-r--r-- | test/CodeGen/X86/sse-commute.ll | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/test/CodeGen/X86/sse-commute.ll b/test/CodeGen/X86/sse-commute.ll new file mode 100644 index 0000000..38ed644 --- /dev/null +++ b/test/CodeGen/X86/sse-commute.ll @@ -0,0 +1,20 @@ +; RUN: llc -march=x86-64 < %s | FileCheck %s + +; Commute the comparison to avoid a move. +; PR7500. + +; CHECK: a: +; CHECK-NOT: mov +; CHECK: pcmpeqd +define <2 x double> @a(<2 x double>, <2 x double>) nounwind readnone { +entry: + %tmp6 = bitcast <2 x double> %0 to <4 x i32> ; <<4 x i32>> [#uses=2] + %tmp4 = bitcast <2 x double> %1 to <4 x i32> ; <<4 x i32>> [#uses=1] + %cmp = icmp eq <4 x i32> %tmp6, %tmp4 ; <<4 x i1>> [#uses=1] + %sext = sext <4 x i1> %cmp to <4 x i32> ; <<4 x i32>> [#uses=1] + %and = and <4 x i32> %tmp6, %sext ; <<4 x i32>> [#uses=1] + %tmp8 = bitcast <4 x i32> %and to <2 x double> ; <<2 x double>> [#uses=1] + ret <2 x double> %tmp8 +} + + |
