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llvm-mirror/test/CodeGen/R600/fcmp.ll
Tom Stellard 32a764306e R600: Add support for SET*_DX10 instructions
These instructions compare two floating point values and return an
integer true (-1) or false (0) value.

When compiling code generated by the Mesa GLSL frontend, the SET*_DX10
instructions save us four instructions for most branch decisions that
use floating-point comparisons.

llvm-svn: 174609
2013-02-07 14:02:35 +00:00

15 lines
470 B
LLVM

;RUN: llc < %s -march=r600 -mcpu=redwood | FileCheck %s
;CHECK: SETE_DX10 T{{[0-9]+\.[XYZW], T[0-9]+\.[XYZW], T[0-9]+\.[XYZW]}}
define void @test(i32 addrspace(1)* %out, float addrspace(1)* %in) {
entry:
%0 = load float addrspace(1)* %in
%arrayidx1 = getelementptr inbounds float addrspace(1)* %in, i32 1
%1 = load float addrspace(1)* %arrayidx1
%cmp = fcmp oeq float %0, %1
%sext = sext i1 %cmp to i32
store i32 %sext, i32 addrspace(1)* %out
ret void
}