RPCS3/llvm-mirror
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-12-12 22:17:47 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

[InstSimplify] add tests for expandCommutativeBinOp; NFC

Browse Source
This commit is contained in:
Juneyoung Lee 2020-07-29 23:21:39 +09:00
parent 63c884fbb4
commit 3c2cfe5a9c
1 changed files with 32 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

32
test/Transforms/InstSimplify/distribute.ll Normal file
View File

@ -0,0 +1,32 @@
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -instsimplify -S | FileCheck %s
; %result = x & (1 ^ sel) = (x & 1) ^ (x & sel)
; = x ^ (select cond, false, false)
; = x ^ false = x
;
define i1 @f(i1 %cond, i1 noundef %x, i1 %y, i1 %z) {
; CHECK-LABEL: @f(
; CHECK-NEXT: ret i1 [[X:%.*]]
;
%notx = xor i1 %x, 1
%lhs = and i1 %notx, %y
%rhs = and i1 %notx, %z
%sel = select i1 %cond, i1 %lhs, i1 %rhs
%op1 = xor i1 1, %sel
%result = and i1 %x, %op1
ret i1 %result
}
define i1 @f_dontfold(i1 %cond, i1 %x, i1 %y, i1 %z) {
; CHECK-LABEL: @f_dontfold(
; CHECK-NEXT: ret i1 [[X:%.*]]
;
%notx = xor i1 %x, 1
%lhs = and i1 %notx, %y
%rhs = and i1 %notx, %z
%sel = select i1 %cond, i1 %lhs, i1 %rhs
%op1 = xor i1 1, %sel
%result = and i1 %x, %op1
ret i1 %result
}