RPCS3/llvm-mirror
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2025-01-31 12:41:49 +01:00
Code Issues Projects Releases Wiki Activity
llvm-mirror/test/Analysis/CostModel/RISCV/logicalop.ll

59 lines
3.6 KiB
LLVM
Raw Normal View History

[TTI] Consider select form of and/or i1 as having arithmetic cost 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
2021-02-24 16:03:51 +09:00
; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py
; RUN: opt -mtriple=riscv32 -cost-model -analyze < %s \
; RUN: | FileCheck %s --check-prefix=CHECK-THROUGHPUT
; RUN: opt -mtriple=riscv64 -cost-model -analyze < %s \
; RUN: | FileCheck %s --check-prefix=CHECK-THROUGHPUT
; RUN: opt -mtriple=riscv32 -cost-model -analyze -cost-kind=code-size < %s \
; RUN: | FileCheck %s --check-prefix=CHECK-SIZE
; RUN: opt -mtriple=riscv64 -cost-model -analyze -cost-kind=code-size < %s \
; RUN: | FileCheck %s --check-prefix=CHECK-SIZE
define void @op() {
; Logical and/or - select's cost must be equivalent to that of binop
; CHECK-THROUGHPUT-LABEL: 'op'
; CHECK-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %sand = select i1 undef, i1 undef, i1 false
; CHECK-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %band = and i1 undef, undef
; CHECK-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %sor = select i1 undef, i1 true, i1 undef
; CHECK-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %bor = or i1 undef, undef
; CHECK-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: ret void
;
; CHECK-SIZE-LABEL: 'op'
; CHECK-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %sand = select i1 undef, i1 undef, i1 false
; CHECK-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %band = and i1 undef, undef
; CHECK-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %sor = select i1 undef, i1 true, i1 undef
; CHECK-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %bor = or i1 undef, undef
; CHECK-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: ret void
;
%sand = select i1 undef, i1 undef, i1 false
%band = and i1 undef, undef
%sor = select i1 undef, i1 true, i1 undef
%bor = or i1 undef, undef
ret void
}
define void @vecop() {
; CHECK-THROUGHPUT-LABEL: 'vecop'
; CHECK-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %sand = select <4 x i1> undef, <4 x i1> undef, <4 x i1> zeroinitializer
; CHECK-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %band = and <4 x i1> undef, undef
; CHECK-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %sor = select <4 x i1> undef, <4 x i1> <i1 true, i1 true, i1 true, i1 true>, <4 x i1> undef
; CHECK-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %bor = or <4 x i1> undef, undef
; CHECK-THROUGHPUT-NEXT: Cost Model: Found an estimated cost of 1 for instruction: ret void
;
; CHECK-SIZE-LABEL: 'vecop'
; 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
; CHECK-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %band = and <4 x i1> undef, undef
; 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
; CHECK-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %bor = or <4 x i1> undef, undef
; CHECK-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: ret void
;
%sand = select <4 x i1> undef, <4 x i1> undef, <4 x i1> <i1 false, i1 false, i1 false, i1 false>
%band = and <4 x i1> undef, undef
%sor = select <4 x i1> undef, <4 x i1> <i1 true, i1 true, i1 true, i1 true>, <4 x i1> undef
%bor = or <4 x i1> undef, undef
ret void
}
Reference in New Issue Copy Permalink