d67ab11f2e
Some passes like LoopSimplify/SimplifyCFF are running between IRPasses and ISelPrepare. This is an issue because the structurizer generates OpSelectionMerge/OpLoopMerge instructions at specific places, and those passes are moving them. Moving the structurizer later solves this issue.
43 lines
1.7 KiB
LLVM
43 lines
1.7 KiB
LLVM
; RUN: %if spirv-tools %{ llc -O3 -mtriple=spirv-unknown-vulkan-compute %s -o - -filetype=obj | spirv-val %}
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target datalayout = "e-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024-n8:16:32:64-G10"
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target triple = "spirv1.6-unknown-vulkan1.3-compute"
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define spir_func noundef i32 @_Z7processv() #0 {
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entry:
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%0 = tail call token @llvm.experimental.convergence.entry()
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%2 = tail call i32 @llvm.spv.thread.id.i32(i32 0)
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switch i32 %2, label %sw1 [
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i32 0, label %sw0
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i32 2, label %sw0
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]
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sw0:
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%5 = call spir_func i1 @llvm.spv.wave.any(i1 false) [ "convergencectrl"(token %0) ]
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br label %exit
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sw1:
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%6 = call spir_func i1 @llvm.spv.wave.any(i1 false) [ "convergencectrl"(token %0) ]
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br label %exit
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exit:
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%.sink = phi i1 [ %5, %sw0 ], [ %6, %sw1 ]
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%conv.i = zext i1 %.sink to i32
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ret i32 %conv.i
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}
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define internal spir_func void @main() #0 {
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entry:
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%0 = call token @llvm.experimental.convergence.entry()
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%call1 = call spir_func noundef i32 @_Z7processv() #0 [ "convergencectrl"(token %0) ]
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ret void
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}
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declare i1 @llvm.spv.wave.any(i1) #0
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declare i32 @llvm.spv.thread.id.i32(i32) #2
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declare token @llvm.experimental.convergence.entry() #0
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attributes #0 = { convergent mustprogress nocallback nofree nosync nounwind willreturn memory(none) }
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attributes #1 = { convergent mustprogress nofree noinline norecurse nosync nounwind willreturn memory(readwrite, inaccessiblemem: none) "frame-pointer"="all" "hlsl.numthreads"="4,1,1" "hlsl.shader"="compute" "no-infs-fp-math"="true" "no-nans-fp-math"="true" "no-signed-zeros-fp-math"="true" "no-trapping-math"="true" "stack-protector-buffer-size"="8" }
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attributes #2 = { mustprogress nofree nosync nounwind willreturn memory(none) }
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