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[InstCombine] Add (icmp ne A, 0) | (icmp ne B, 0) --> (icmp ne (A|B), 0) tests

This commit is contained in:
Simon Pilgrim 2020-10-19 13:42:41 +01:00
parent 7ddd354d47
commit aba7275bb3
1 changed files with 38 additions and 0 deletions
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38
llvm/test/Transforms/InstCombine/icmp.ll
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@ -2188,6 +2188,44 @@ define <2 x i1> @or_icmp_eq_B_0_icmp_ult_A_B_undef(<2 x i64> %a, <2 x i64> %b) {
ret <2 x i1> %3
}
define i1 @or_icmp_ne_A_0_icmp_ne_B_0(i64 %a, i64 %b) {
; CHECK-LABEL: @or_icmp_ne_A_0_icmp_ne_B_0(
; CHECK-NEXT: [[TMP1:%.*]] = or i64 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[TMP2:%.*]] = icmp ne i64 [[TMP1]], 0
; CHECK-NEXT: ret i1 [[TMP2]]
;
%1 = icmp ne i64 %a, 0
%2 = icmp ne i64 %b, 0
%3 = or i1 %1, %2
ret i1 %3
}
define <2 x i1> @or_icmp_ne_A_0_icmp_ne_B_0_uniform(<2 x i64> %a, <2 x i64> %b) {
; CHECK-LABEL: @or_icmp_ne_A_0_icmp_ne_B_0_uniform(
; CHECK-NEXT: [[TMP1:%.*]] = icmp ne <2 x i64> [[A:%.*]], zeroinitializer
; CHECK-NEXT: [[TMP2:%.*]] = icmp ne <2 x i64> [[B:%.*]], zeroinitializer
; CHECK-NEXT: [[TMP3:%.*]] = or <2 x i1> [[TMP1]], [[TMP2]]
; CHECK-NEXT: ret <2 x i1> [[TMP3]]
;
%1 = icmp ne <2 x i64> %a, zeroinitializer
%2 = icmp ne <2 x i64> %b, zeroinitializer
%3 = or <2 x i1> %1, %2
ret <2 x i1> %3
}
define <2 x i1> @or_icmp_ne_A_0_icmp_ne_B_0_undef(<2 x i64> %a, <2 x i64> %b) {
; CHECK-LABEL: @or_icmp_ne_A_0_icmp_ne_B_0_undef(
; CHECK-NEXT: [[TMP1:%.*]] = icmp ne <2 x i64> [[A:%.*]], <i64 0, i64 undef>
; CHECK-NEXT: [[TMP2:%.*]] = icmp ne <2 x i64> [[B:%.*]], <i64 0, i64 undef>
; CHECK-NEXT: [[TMP3:%.*]] = or <2 x i1> [[TMP1]], [[TMP2]]
; CHECK-NEXT: ret <2 x i1> [[TMP3]]
;
%1 = icmp ne <2 x i64> %a, <i64 0, i64 undef>
%2 = icmp ne <2 x i64> %b, <i64 0, i64 undef>
%3 = or <2 x i1> %1, %2
ret <2 x i1> %3
}
define i1 @icmp_add_ult_2(i32 %X) {
; CHECK-LABEL: @icmp_add_ult_2(
; CHECK-NEXT: [[TMP1:%.*]] = and i32 [[X:%.*]], -2