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[InstCombine] add more tests for xor_of_icmps. nfc

This commit is contained in:
Chenbing Zheng 2022-07-20 17:00:34 +08:00
parent 645d2dd3a9
commit 8ba794be31
1 changed files with 60 additions and 1 deletions
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61
llvm/test/Transforms/InstCombine/set.ll
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@ -4,6 +4,8 @@
@X = external global i32
declare void @use(i1)
define i1 @test1(i32 %A) {
; CHECK-LABEL: @test1(
; CHECK-NEXT: ret i1 false
@ -261,6 +263,64 @@ define i1 @xor_of_icmps_neg_to_ne(i64 %a) {
ret i1 %xor
}
define <2 x i1> @xor_of_icmps_to_ne_vector(<2 x i64> %a) {
; CHECK-LABEL: @xor_of_icmps_to_ne_vector(
; CHECK-NEXT: [[B:%.*]] = icmp sgt <2 x i64> [[A:%.*]], <i64 4, i64 4>
; CHECK-NEXT: [[C:%.*]] = icmp slt <2 x i64> [[A]], <i64 6, i64 6>
; CHECK-NEXT: [[XOR:%.*]] = xor <2 x i1> [[B]], [[C]]
; CHECK-NEXT: ret <2 x i1> [[XOR]]
;
%b = icmp sgt <2 x i64> %a, <i64 4, i64 4>
%c = icmp slt <2 x i64> %a, <i64 6, i64 6>
%xor = xor <2 x i1> %b, %c
ret <2 x i1> %xor
}
define i1 @xor_of_icmps_to_ne_no_common_operand(i64 %a, i64 %z) {
; CHECK-LABEL: @xor_of_icmps_to_ne_no_common_operand(
; CHECK-NEXT: [[B:%.*]] = icmp sgt i64 [[Z:%.*]], 4
; CHECK-NEXT: [[C:%.*]] = icmp slt i64 [[A:%.*]], 6
; CHECK-NEXT: [[XOR:%.*]] = xor i1 [[B]], [[C]]
; CHECK-NEXT: ret i1 [[XOR]]
;
%b = icmp sgt i64 %z, 4
%c = icmp slt i64 %a, 6
%xor = xor i1 %b, %c
ret i1 %xor
}
define i1 @xor_of_icmps_to_ne_extra_use_one(i64 %a) {
; CHECK-LABEL: @xor_of_icmps_to_ne_extra_use_one(
; CHECK-NEXT: [[B:%.*]] = icmp sgt i64 [[A:%.*]], 4
; CHECK-NEXT: [[C:%.*]] = icmp slt i64 [[A]], 6
; CHECK-NEXT: call void @use(i1 [[B]])
; CHECK-NEXT: [[XOR:%.*]] = xor i1 [[B]], [[C]]
; CHECK-NEXT: ret i1 [[XOR]]
;
%b = icmp sgt i64 %a, 4
%c = icmp slt i64 %a, 6
call void @use(i1 %b)
%xor = xor i1 %b, %c
ret i1 %xor
}
define i1 @xor_of_icmps_to_ne_extra_use_two(i64 %a) {
; CHECK-LABEL: @xor_of_icmps_to_ne_extra_use_two(
; CHECK-NEXT: [[B:%.*]] = icmp sgt i64 [[A:%.*]], 4
; CHECK-NEXT: [[C:%.*]] = icmp slt i64 [[A]], 6
; CHECK-NEXT: call void @use(i1 [[B]])
; CHECK-NEXT: call void @use(i1 [[C]])
; CHECK-NEXT: [[XOR:%.*]] = xor i1 [[B]], [[C]]
; CHECK-NEXT: ret i1 [[XOR]]
;
%b = icmp sgt i64 %a, 4
%c = icmp slt i64 %a, 6
call void @use(i1 %b)
call void @use(i1 %c)
%xor = xor i1 %b, %c
ret i1 %xor
}
define i1 @xor_of_icmps_to_eq(i8 %a) {
; CHECK-LABEL: @xor_of_icmps_to_eq(
; CHECK-NEXT: [[C:%.*]] = icmp eq i8 [[A:%.*]], 127
@ -487,4 +547,3 @@ define i1 @test25(i32 %A) {
%C = icmp ugt i32 %B, 2
ret i1 %C
}