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312b2e1b99
This is a patch that updates the cost of `select i1 a, b, false` to be equivalent to that of `and i1 a, b` as well as the cost of `select i1 a, true, b` equivalent to `or i1 a, b`. Until now, these selects were folded into and/or i1 by InstCombine, but the transformation is poison-unsafe. This is a step towards removing the unsafe transformation. D93065 has relevant transformations linked. These selects should be translated into the assemblies as and/or i1 do in the same manner. The cost should be equivalent. Reviewed By: spatel Differential Revision: https://reviews.llvm.org/D97360
62 lines
4.8 KiB
LLVM
62 lines
4.8 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py
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; RUN: opt < %s -cost-model -analyze -mtriple=x86_64-unknown-linux-gnu -mattr=+sse2 | FileCheck %s --check-prefix=CHECK-THROUGHPUT
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; RUN: opt < %s -cost-model -analyze -mtriple=x86_64-unknown-linux-gnu -mattr=+sse4.1 | FileCheck %s --check-prefix=CHECK-THROUGHPUT
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; RUN: opt < %s -cost-model -analyze -mtriple=x86_64-unknown-linux-gnu -mattr=+avx | FileCheck %s --check-prefix=CHECK-THROUGHPUT
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; RUN: opt < %s -cost-model -analyze -mtriple=x86_64-unknown-linux-gnu -mattr=+avx2 | FileCheck %s --check-prefix=CHECK-THROUGHPUT
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; RUN: opt < %s -cost-model -analyze -mtriple=x86_64-unknown-linux-gnu -mattr=+avx512f,+avx512vl | FileCheck %s --check-prefix=CHECK-THROUGHPUT
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; RUN: opt < %s -cost-model -analyze -mtriple=x86_64-unknown-linux-gnu -mattr=+avx512bw,+avx512vl | FileCheck %s --check-prefix=CHECK-THROUGHPUT
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; RUN: opt < %s -cost-model -analyze -cost-kind=code-size -mtriple=x86_64-unknown-linux-gnu -mattr=+sse2 | FileCheck %s --check-prefix=CHECK-SIZE
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; RUN: opt < %s -cost-model -analyze -cost-kind=code-size -mtriple=x86_64-unknown-linux-gnu -mattr=+sse4.1 | FileCheck %s --check-prefix=CHECK-SIZE
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; RUN: opt < %s -cost-model -analyze -cost-kind=code-size -mtriple=x86_64-unknown-linux-gnu -mattr=+avx | FileCheck %s --check-prefix=CHECK-SIZE
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; RUN: opt < %s -cost-model -analyze -cost-kind=code-size -mtriple=x86_64-unknown-linux-gnu -mattr=+avx2 | FileCheck %s --check-prefix=CHECK-SIZE
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; RUN: opt < %s -cost-model -analyze -cost-kind=code-size -mtriple=x86_64-unknown-linux-gnu -mattr=+avx512f,+avx512vl | FileCheck %s --check-prefix=CHECK-SIZE
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; RUN: opt < %s -cost-model -analyze -cost-kind=code-size -mtriple=x86_64-unknown-linux-gnu -mattr=+avx512bw,+avx512vl | FileCheck %s --check-prefix=CHECK-SIZE
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define void @op() {
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; Logical and/or - select's cost must be equivalent to that of binop
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; CHECK-THROUGHPUT-LABEL: 'op'
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; CHECK-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %sand = select i1 undef, i1 undef, i1 false
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; CHECK-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %band = and i1 undef, undef
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; CHECK-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %sor = select i1 undef, i1 true, i1 undef
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; CHECK-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %bor = or i1 undef, undef
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; CHECK-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
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;
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; CHECK-SIZE-LABEL: 'op'
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; CHECK-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %sand = select i1 undef, i1 undef, i1 false
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; CHECK-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %band = and i1 undef, undef
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; CHECK-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %sor = select i1 undef, i1 true, i1 undef
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; CHECK-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %bor = or i1 undef, undef
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; CHECK-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: ret void
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;
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%sand = select i1 undef, i1 undef, i1 false
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%band = and i1 undef, undef
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%sor = select i1 undef, i1 true, i1 undef
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%bor = or i1 undef, undef
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ret void
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}
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define void @vecop() {
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; CHECK-THROUGHPUT-LABEL: 'vecop'
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; CHECK-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %sand = select <4 x i1> undef, <4 x i1> undef, <4 x i1> zeroinitializer
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; CHECK-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %band = and <4 x i1> undef, undef
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; CHECK-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %sor = select <4 x i1> undef, <4 x i1> <i1 true, i1 true, i1 true, i1 true>, <4 x i1> undef
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; CHECK-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %bor = or <4 x i1> undef, undef
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; CHECK-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
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;
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; CHECK-SIZE-LABEL: 'vecop'
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; CHECK-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %sand = select <4 x i1> undef, <4 x i1> undef, <4 x i1> zeroinitializer
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; CHECK-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %band = and <4 x i1> undef, undef
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; CHECK-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %sor = select <4 x i1> undef, <4 x i1> <i1 true, i1 true, i1 true, i1 true>, <4 x i1> undef
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; CHECK-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %bor = or <4 x i1> undef, undef
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; CHECK-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: ret void
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;
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%sand = select <4 x i1> undef, <4 x i1> undef, <4 x i1> <i1 false, i1 false, i1 false, i1 false>
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%band = and <4 x i1> undef, undef
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%sor = select <4 x i1> undef, <4 x i1> <i1 true, i1 true, i1 true, i1 true>, <4 x i1> undef
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%bor = or <4 x i1> undef, undef
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ret void
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}
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