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[InstSimplify] add tests for expandCommutativeBinOp; NFC

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Juneyoung Lee 2020-07-29 23:21:39 +09:00
parent 63c884fbb4
commit 3c2cfe5a9c
1 changed files with 32 additions and 0 deletions
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test/Transforms/InstSimplify/distribute.ll Normal file
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; 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
}