RPCS3/llvm-mirror
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2025-01-31 20:51:52 +01:00
Code Issues Projects Releases Wiki Activity

[InstSimplify] Add test cases for mixing add/sub i1 with xor of i1. Seems we can simplify in one direction but not the other.

Browse Source 
llvm-svn: 299627
This commit is contained in:
Craig Topper 2017-04-06 05:48:06 +00:00
parent 1b82c553d5
commit c3e279d063
1 changed files with 42 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

42
test/Transforms/InstSimplify/addsub.ll
View File

@ -34,3 +34,45 @@ define <2 x i1> @test6(<2 x i1> %a) {
%res = add <2 x i1> %a, %a
ret <2 x i1> %res
}
define i1 @test7(i1 %a) {
; CHECK-LABEL: @test7(
; CHECK-NEXT: ret i1 [[A:%.*]]
;
%c = xor i1 %a, true
%res = add i1 %c, true
ret i1 %res
}
; TODO: simplify this to %a
define i1 @test8(i1 %a) {
; CHECK-LABEL: @test8(
; CHECK-NEXT: [[C:%.*]] = add i1 [[A:%.*]], true
; CHECK-NEXT: [[RES:%.*]] = xor i1 [[C]], true
; CHECK-NEXT: ret i1 [[RES]]
;
%c = add i1 %a, true
%res = xor i1 %c, true
ret i1 %res
}
define i1 @test9(i1 %a) {
; CHECK-LABEL: @test9(
; CHECK-NEXT: ret i1 [[A:%.*]]
;
%c = xor i1 %a, true
%res = sub i1 %c, true
ret i1 %res
}
; TODO: simplify this to %a
define i1 @test10(i1 %a) {
; CHECK-LABEL: @test10(
; CHECK-NEXT: [[C:%.*]] = sub i1 [[A:%.*]], true
; CHECK-NEXT: [[RES:%.*]] = xor i1 [[C]], true
; CHECK-NEXT: ret i1 [[RES]]
;
%c = sub i1 %a, true
%res = xor i1 %c, true
ret i1 %res
}