llvm/test/Transforms/InstCombine/apint-and-xor-merge.ll
Sanjay Patel 503ff5bcee [InstCombine] regenerate checks
utils/update_test_checks.py was improved with:
http://reviews.llvm.org/rL265414
to CHECK-NEXT the first line of the IR function. This ensures that nothing bad
has happened before that.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265417 91177308-0d34-0410-b5e6-96231b3b80d8
2016-04-05 17:24:54 +00:00

32 lines
829 B
LLVM

; NOTE: Assertions have been autogenerated by update_test_checks.py
; This test case checks that the merge of and/xor can work on arbitrary
; precision integers.
; RUN: opt < %s -instcombine -S | FileCheck %s
; (x &z ) ^ (y & z) -> (x ^ y) & z
define i57 @test1(i57 %x, i57 %y, i57 %z) {
; CHECK-LABEL: @test1(
; CHECK-NEXT: [[TMP61:%.*]] = xor i57 %x, %y
; CHECK-NEXT: [[TMP7:%.*]] = and i57 [[TMP61]], %z
; CHECK-NEXT: ret i57 [[TMP7]]
;
%tmp3 = and i57 %z, %x
%tmp6 = and i57 %z, %y
%tmp7 = xor i57 %tmp3, %tmp6
ret i57 %tmp7
}
; (x & y) ^ (x | y) -> x ^ y
define i23 @test2(i23 %x, i23 %y, i23 %z) {
; CHECK-LABEL: @test2(
; CHECK-NEXT: [[TMP7:%.*]] = xor i23 %y, %x
; CHECK-NEXT: ret i23 [[TMP7]]
;
%tmp3 = and i23 %y, %x
%tmp6 = or i23 %y, %x
%tmp7 = xor i23 %tmp3, %tmp6
ret i23 %tmp7
}