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[InstCombine] add test for missing icmp bool fold; NFC

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llvm-svn: 303310
This commit is contained in:
Sanjay Patel 2017-05-17 22:20:02 +00:00
parent 3ef857cc2f
commit 75fa87646f
1 changed files with 26 additions and 10 deletions
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36
test/Transforms/InstCombine/set.ll
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@ -110,8 +110,8 @@ define i1 @test12(i1 %A) {
define i1 @test13(i1 %A, i1 %B) {
; CHECK-LABEL: @test13(
; CHECK-NEXT: [[CTMP:%.*]] = xor i1 %B, true
; CHECK-NEXT: [[C:%.*]] = or i1 [[CTMP]], %A
; CHECK-NEXT: [[TMP1:%.*]] = xor i1 %B, true
; CHECK-NEXT: [[C:%.*]] = or i1 [[TMP1]], %A
; CHECK-NEXT: ret i1 [[C]]
;
%C = icmp uge i1 %A, %B
@ -120,8 +120,8 @@ define i1 @test13(i1 %A, i1 %B) {
define <2 x i1> @test13vec(<2 x i1> %A, <2 x i1> %B) {
; CHECK-LABEL: @test13vec(
; CHECK-NEXT: [[CTMP:%.*]] = xor <2 x i1> %B, <i1 true, i1 true>
; CHECK-NEXT: [[C:%.*]] = or <2 x i1> [[CTMP]], %A
; CHECK-NEXT: [[TMP1:%.*]] = xor <2 x i1> %B, <i1 true, i1 true>
; CHECK-NEXT: [[C:%.*]] = or <2 x i1> [[TMP1]], %A
; CHECK-NEXT: ret <2 x i1> [[C]]
;
%C = icmp uge <2 x i1> %A, %B
@ -130,8 +130,8 @@ define <2 x i1> @test13vec(<2 x i1> %A, <2 x i1> %B) {
define i1 @test14(i1 %A, i1 %B) {
; CHECK-LABEL: @test14(
; CHECK-NEXT: [[CTMP:%.*]] = xor i1 %A, %B
; CHECK-NEXT: [[C:%.*]] = xor i1 [[CTMP]], true
; CHECK-NEXT: [[TMP1:%.*]] = xor i1 %A, %B
; CHECK-NEXT: [[C:%.*]] = xor i1 [[TMP1]], true
; CHECK-NEXT: ret i1 [[C]]
;
%C = icmp eq i1 %A, %B
@ -140,14 +140,30 @@ define i1 @test14(i1 %A, i1 %B) {
define <3 x i1> @test14vec(<3 x i1> %A, <3 x i1> %B) {
; CHECK-LABEL: @test14vec(
; CHECK-NEXT: [[CTMP:%.*]] = xor <3 x i1> %A, %B
; CHECK-NEXT: [[C:%.*]] = xor <3 x i1> [[CTMP]], <i1 true, i1 true, i1 true>
; CHECK-NEXT: [[TMP1:%.*]] = xor <3 x i1> %A, %B
; CHECK-NEXT: [[C:%.*]] = xor <3 x i1> [[TMP1]], <i1 true, i1 true, i1 true>
; CHECK-NEXT: ret <3 x i1> [[C]]
;
%C = icmp eq <3 x i1> %A, %B
ret <3 x i1> %C
}
; FIXME: Not recognizing the icmp bool with constant exposes a missing fold.
define i1 @bool_eq0(i64 %a) {
; CHECK-LABEL: @bool_eq0(
; CHECK-NEXT: [[B:%.*]] = icmp sgt i64 %a, 0
; CHECK-NEXT: [[C:%.*]] = icmp eq i64 %a, 1
; CHECK-NEXT: [[AND:%.*]] = xor i1 [[C]], [[B]]
; CHECK-NEXT: ret i1 [[AND]]
;
%b = icmp sgt i64 %a, 0
%c = icmp eq i64 %a, 1
%notc = icmp eq i1 %c, false
%and = and i1 %b, %notc
ret i1 %and
}
define i1 @test16(i32 %A) {
; CHECK-LABEL: @test16(
; CHECK-NEXT: ret i1 false
@ -191,8 +207,8 @@ endif:
define i1 @test19(i1 %A, i1 %B) {
; CHECK-LABEL: @test19(
; CHECK-NEXT: [[CTMP:%.*]] = xor i1 %A, %B
; CHECK-NEXT: [[C:%.*]] = xor i1 [[CTMP]], true
; CHECK-NEXT: [[TMP1:%.*]] = xor i1 %A, %B
; CHECK-NEXT: [[C:%.*]] = xor i1 [[TMP1]], true
; CHECK-NEXT: ret i1 [[C]]
;
%a = zext i1 %A to i32