b542501ad7
hlsl_intrinsics.h - add the round api DXIL.td add the llvm intrinsic to DXIL lowering mapping This change reuses llvm's existing intrinsic `__builtin_elementwise_round`\ `int_round` This change implements: #70077
32 lines
1.1 KiB
LLVM
32 lines
1.1 KiB
LLVM
; RUN: opt -S -dxil-op-lower < %s | FileCheck %s
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; Make sure dxil operation function calls for round are generated for float and half.
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; CHECK:call float @dx.op.unary.f32(i32 26, float %{{.*}})
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; CHECK:call half @dx.op.unary.f16(i32 26, half %{{.*}})
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target datalayout = "e-m:e-p:32:32-i1:32-i8:8-i16:16-i32:32-i64:64-f16:16-f32:32-f64:64-n8:16:32:64"
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target triple = "dxil-pc-shadermodel6.7-library"
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; Function Attrs: noinline nounwind optnone
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define noundef float @round_float(float noundef %a) #0 {
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entry:
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%a.addr = alloca float, align 4
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store float %a, ptr %a.addr, align 4
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%0 = load float, ptr %a.addr, align 4
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%elt.round = call float @llvm.round.f32(float %0)
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ret float %elt.round
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}
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; Function Attrs: nocallback nofree nosync nounwind readnone speculatable willreturn
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declare float @llvm.round.f32(float) #1
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; Function Attrs: noinline nounwind optnone
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define noundef half @round_half(half noundef %a) #0 {
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entry:
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%a.addr = alloca half, align 2
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store half %a, ptr %a.addr, align 2
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%0 = load half, ptr %a.addr, align 2
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%elt.round = call half @llvm.round.f16(half %0)
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ret half %elt.round
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}
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