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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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174609 91177308-0d34-0410-b5e6-96231b3b80d8
15 lines
470 B
LLVM
15 lines
470 B
LLVM
;RUN: llc < %s -march=r600 -mcpu=redwood | FileCheck %s
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;CHECK: SETE_DX10 T{{[0-9]+\.[XYZW], T[0-9]+\.[XYZW], T[0-9]+\.[XYZW]}}
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define void @test(i32 addrspace(1)* %out, float addrspace(1)* %in) {
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entry:
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%0 = load float addrspace(1)* %in
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%arrayidx1 = getelementptr inbounds float addrspace(1)* %in, i32 1
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%1 = load float addrspace(1)* %arrayidx1
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%cmp = fcmp oeq float %0, %1
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%sext = sext i1 %cmp to i32
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store i32 %sext, i32 addrspace(1)* %out
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ret void
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}
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