llvm-6502/test/CodeGen/R600/fcmp-cnde-int-args.ll
Tom Stellard 1454cb86be R600: Improve custom lowering of select_cc
Two changes:
1. Prefer SET* instructions when possible
2. Handle the CND*_INT case with floating-point args

Reviewed-by: Christian König <christian.koenig@amd.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176699 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-08 15:37:09 +00:00

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LLVM

; RUN: llc < %s -march=r600 -mcpu=redwood | FileCheck %s
; This test checks a bug in R600TargetLowering::LowerSELECT_CC where the
; chance to optimize the fcmp + select instructions to SET* was missed
; due to the fact that the operands to fcmp and select had different types
; CHECK: SET{{[A-Z]+}}_DX10
define void @test(i32 addrspace(1)* %out, float addrspace(1)* %in) {
entry:
%0 = load float addrspace(1)* %in
%cmp = fcmp oeq float %0, 0.000000e+00
%value = select i1 %cmp, i32 -1, i32 0
store i32 %value, i32 addrspace(1)* %out
ret void
}