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[InstCombine] icmp-logical.ll: restore the original intention of the test.

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While that fold is clearly not happening [anymore],
we do now have separate test cases for these cases,
so we should be ok to slightly adjust these tests
to not potentially loose test coverage.

As suggested by Hiroshi Yamauchi in
https://reviews.llvm.org/D49179#1159345

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@336912 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Roman Lebedev
2018-07-12 14:56:17 +00:00
parent 83a86dd616
commit fd0e24d7ea
1 changed files with 8 additions and 12 deletions
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test/Transforms/InstCombine/icmp-logical.ll
+8 -12
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@@ -59,15 +59,13 @@ define i1 @masked_or_allones(i32 %A) {
define i1 @masked_and_notA(i32 %A) {
; CHECK-LABEL: @masked_and_notA(
; CHECK-NEXT: [[TMP1:%.*]] = icmp ugt i32 [[A:%.*]], 7
; CHECK-NEXT: [[MASK2:%.*]] = and i32 [[A]], 39
; CHECK-NEXT: [[MASK2:%.*]] = and i32 [[A:%.*]], 78
; CHECK-NEXT: [[TST2:%.*]] = icmp ne i32 [[MASK2]], [[A]]
; CHECK-NEXT: [[RES:%.*]] = and i1 [[TMP1]], [[TST2]]
; CHECK-NEXT: ret i1 [[RES]]
; CHECK-NEXT: ret i1 [[TST2]]
;
%mask1 = and i32 %A, 7
%mask1 = and i32 %A, 14
%tst1 = icmp ne i32 %mask1, %A
%mask2 = and i32 %A, 39
%mask2 = and i32 %A, 78
%tst2 = icmp ne i32 %mask2, %A
%res = and i1 %tst1, %tst2
ret i1 %res
@@ -90,15 +88,13 @@ define i1 @masked_and_notA_slightly_optimized(i32 %A) {
define i1 @masked_or_A(i32 %A) {
; CHECK-LABEL: @masked_or_A(
; CHECK-NEXT: [[TMP1:%.*]] = icmp ult i32 [[A:%.*]], 8
; CHECK-NEXT: [[MASK2:%.*]] = and i32 [[A]], 39
; CHECK-NEXT: [[MASK2:%.*]] = and i32 [[A:%.*]], 78
; CHECK-NEXT: [[TST2:%.*]] = icmp eq i32 [[MASK2]], [[A]]
; CHECK-NEXT: [[RES:%.*]] = or i1 [[TMP1]], [[TST2]]
; CHECK-NEXT: ret i1 [[RES]]
; CHECK-NEXT: ret i1 [[TST2]]
;
%mask1 = and i32 %A, 7
%mask1 = and i32 %A, 14
%tst1 = icmp eq i32 %mask1, %A
%mask2 = and i32 %A, 39
%mask2 = and i32 %A, 78
%tst2 = icmp eq i32 %mask2, %A
%res = or i1 %tst1, %tst2
ret i1 %res