From af9f4973aaf1cd3338c9dcc03c419b69f4d6dc9a Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Wed, 4 Oct 2006 06:56:02 +0000 Subject: pattern match min/max nodes git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30718 91177308-0d34-0410-b5e6-96231b3b80d8 --- test/CodeGen/X86/scalar_sse_minmax.ll | 37 +++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 test/CodeGen/X86/scalar_sse_minmax.ll (limited to 'test/CodeGen/X86/scalar_sse_minmax.ll') diff --git a/test/CodeGen/X86/scalar_sse_minmax.ll b/test/CodeGen/X86/scalar_sse_minmax.ll new file mode 100644 index 0000000000..b2217f9975 --- /dev/null +++ b/test/CodeGen/X86/scalar_sse_minmax.ll @@ -0,0 +1,37 @@ +; RUN: llvm-as < %s | llc -march=x86 -mattr=+sse1,+sse2 | grep mins | wc -l | grep 2 && +; RUN: llvm-as < %s | llc -march=x86 -mattr=+sse1,+sse2 | grep maxs | wc -l | grep 2 + +declare bool %llvm.isunordered.f64( double %x, double %y ) +declare bool %llvm.isunordered.f32( float %x, float %y ) + +implementation + +float %min1(float %x, float %y) { + %tmp = setlt float %x, %y ; [#uses=1] + %retval = select bool %tmp, float %x, float %y ; [#uses=1] + ret float %retval +} +double %min2(double %x, double %y) { + %tmp = setlt double %x, %y + %retval = select bool %tmp, double %x, double %y + ret double %retval +} + +float %max1(float %x, float %y) { + %tmp = setge float %x, %y ; [#uses=1] + %tmp2 = tail call bool %llvm.isunordered.f32( float %x, float %y ) + %tmp3 = or bool %tmp2, %tmp ; [#uses=1] + %retval = select bool %tmp3, float %x, float %y + ret float %retval +} + +double %max2(double %x, double %y) { + %tmp = setge double %x, %y ; [#uses=1] + %tmp2 = tail call bool %llvm.isunordered.f64( double %x, double %y ) + %tmp3 = or bool %tmp2, %tmp ; [#uses=1] + %retval = select bool %tmp3, double %x, double %y + ret double %retval +} + + + -- cgit v1.2.3