derek.holloway
7502bf64a4
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32 lines
1.2 KiB
LLVM
32 lines
1.2 KiB
LLVM
; RUN: opt -passes='function(scalarizer),module(dxil-intrinsic-expansion,dxil-op-lower)' -S -mtriple=dxil-pc-shadermodel6.3-pixel %s | FileCheck %s
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; CHECK-LABEL: define void @test_scalar
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; CHECK: call void @dx.op.discard(i32 82, i1 %0)
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;
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define void @test_scalar(float noundef %p) #0 {
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entry:
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%0 = fcmp olt float %p, 0.000000e+00
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call void @llvm.dx.discard(i1 %0)
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ret void
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}
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; CHECK-LABEL: define void @test_vector
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; CHECK: [[EXTR0:%.*]] = extractelement <4 x i1> [[INP:%.*]], i64 0
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; CHECK-NEXT: [[EXTR1:%.*]] = extractelement <4 x i1> [[INP:%.*]], i64 1
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; CHECK-NEXT: [[OR1:%.*]] = or i1 [[EXTR0]], [[EXTR1]]
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; CHECK-NEXT: [[EXTR2:%.*]] = extractelement <4 x i1> [[INP:%.*]], i64 2
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; CHECK-NEXT: [[OR2:%.*]] = or i1 [[OR1]], [[EXTR2]]
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; CHECK-NEXT: [[EXTR3:%.*]] = extractelement <4 x i1> [[INP:%.*]], i64 3
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; CHECK-NEXT: [[OR3:%.*]] = or i1 [[OR2]], [[EXTR3]]
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; CHECK-NEXT: call void @dx.op.discard(i32 82, i1 [[OR3]])
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;
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define void @test_vector(<4 x float> noundef %p) #0 {
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entry:
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%0 = fcmp olt <4 x float> %p, zeroinitializer
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%1 = call i1 @llvm.dx.any.v4i1(<4 x i1> %0)
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call void @llvm.dx.discard(i1 %1)
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ret void
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}
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declare void @llvm.dx.discard(i1)
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