derek.holloway
7502bf64a4
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59 lines
2.6 KiB
LLVM
59 lines
2.6 KiB
LLVM
; RUN: llvm-reduce --abort-on-invalid-reduction --delta-passes=attributes --test FileCheck --test-arg %s --test-arg --input-file %s -o %t
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; RUN: FileCheck --check-prefixes=CHECK,RESULT %s < %t
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; Test that invalid reductions aren't produced on convergent functions
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; which use convergencectrl bundles
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; CHECK-LABEL: define float @convergent_intrinsic(float %x, float %y)
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; RESULT-SAME: [[CONVERGENT_ONLY:#[0-9]+]] {
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define float @convergent_intrinsic(float %x, float %y) #0 {
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%entry.token = call token @llvm.experimental.convergence.entry()
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%val = call float @llvm.amdgcn.readfirstlane.f32(float %x) [ "convergencectrl"(token %entry.token) ]
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ret float %val
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}
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; CHECK-LABEL: define float @convergent_callsite(float %x, float %y)
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; RESULT-SAME: [[CONVERGENT_ONLY]] {
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; RESULT: call float @extern.func(float %x, float %y) [[CONVERGENT_ONLY]]
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define float @convergent_callsite(float %x, float %y) #0 {
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%entry.token = call token @llvm.experimental.convergence.entry()
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%val = call float @extern.func(float %x, float %y) #0 [ "convergencectrl"(token %entry.token) ]
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ret float %val
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}
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; CHECK-LABEL: define float @convergent_declaration(float %x, float %y)
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; RESULT-SAME: [[CONVERGENT_ONLY]] {
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define float @convergent_declaration(float %x, float %y) #0 {
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%entry.token = call token @llvm.experimental.convergence.entry()
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%val = call float @convergent.extern.func(float %x, float %y) [ "convergencectrl"(token %entry.token) ]
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ret float %val
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}
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; CHECK-LABEL: define float @convergent_func_no_convergent_intrinsics(float %x, float %y)
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; RESULT-SAME: [[CONVERGENT_ONLY]] {
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define float @convergent_func_no_convergent_intrinsics(float %x, float %y) #0 {
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%val = call float @extern.func(float %x, float %y)
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ret float %val
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}
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; CHECK-LABEL: define float @convergent_func_no_convergent_bundles(float %x, float %y)
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; RESULT-SAME: [[CONVERGENT_ONLY]] {
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define float @convergent_func_no_convergent_bundles(float %x, float %y) #0 {
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%entry.token = call token @llvm.experimental.convergence.entry()
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%val = call float @extern.func(float %x, float %y)
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ret float %val
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}
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; CHECK-LABEL: declare float @convergent.extern.func(float, float)
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; RESULT-SAME: [[CONVERGENT_ONLY]]{{$}}
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declare float @convergent.extern.func(float, float) #0
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declare float @extern.func(float, float)
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declare float @llvm.amdgcn.readfirstlane.f32(float) #1
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declare token @llvm.experimental.convergence.entry() #2
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; RESULT: attributes [[CONVERGENT_ONLY]] = { convergent }
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attributes #0 = { convergent nounwind }
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attributes #1 = { convergent nocallback nofree nounwind willreturn memory(none) }
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attributes #2 = { convergent nocallback nofree nosync nounwind willreturn memory(none) }
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