forked from OSchip/llvm-project
[InstCombine] add tests for bool math; NFC
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Sanjay Patel
parent
5267f5e6b4
commit
586565c514
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@ -1181,3 +1181,139 @@ define i32 @lshr_add_use2(i1 %x, i1 %y, i32* %p) {
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%r = lshr i32 %sub, 31
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ret i32 %r
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}
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define i32 @lshr_add_sexts(i1 %x, i1 %y) {
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; CHECK-LABEL: @lshr_add_sexts(
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; CHECK-NEXT: [[XS:%.*]] = sext i1 [[X:%.*]] to i32
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; CHECK-NEXT: [[YS:%.*]] = sext i1 [[Y:%.*]] to i32
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; CHECK-NEXT: [[SUB:%.*]] = add nsw i32 [[XS]], [[YS]]
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; CHECK-NEXT: [[R:%.*]] = lshr i32 [[SUB]], 31
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; CHECK-NEXT: ret i32 [[R]]
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;
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%xs = sext i1 %x to i32
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%ys = sext i1 %y to i32
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%sub = add i32 %xs, %ys
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%r = lshr i32 %sub, 31
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ret i32 %r
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}
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define i5 @and_add_sexts(i1 %x, i1 %y) {
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; CHECK-LABEL: @and_add_sexts(
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; CHECK-NEXT: [[XS:%.*]] = sext i1 [[X:%.*]] to i5
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; CHECK-NEXT: [[YS:%.*]] = sext i1 [[Y:%.*]] to i5
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; CHECK-NEXT: [[SUB:%.*]] = add nsw i5 [[XS]], [[YS]]
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; CHECK-NEXT: [[R:%.*]] = and i5 [[SUB]], -2
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; CHECK-NEXT: ret i5 [[R]]
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;
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%xs = sext i1 %x to i5
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%ys = sext i1 %y to i5
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%sub = add i5 %xs, %ys
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%r = and i5 %sub, 30
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ret i5 %r
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}
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define <2 x i8> @ashr_add_sexts(<2 x i1> %x, <2 x i1> %y) {
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; CHECK-LABEL: @ashr_add_sexts(
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; CHECK-NEXT: [[XS:%.*]] = sext <2 x i1> [[X:%.*]] to <2 x i8>
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; CHECK-NEXT: [[YS:%.*]] = sext <2 x i1> [[Y:%.*]] to <2 x i8>
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; CHECK-NEXT: [[SUB:%.*]] = add nsw <2 x i8> [[YS]], [[XS]]
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; CHECK-NEXT: [[R:%.*]] = ashr <2 x i8> [[SUB]], <i8 1, i8 1>
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; CHECK-NEXT: ret <2 x i8> [[R]]
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;
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%xs = sext <2 x i1> %x to <2 x i8>
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%ys = sext <2 x i1> %y to <2 x i8>
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%sub = add nsw <2 x i8> %ys, %xs
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%r = ashr <2 x i8> %sub, <i8 1, i8 1>
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ret <2 x i8> %r
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}
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define i32 @cmp_math_sexts(i32 %x, i32 %y) {
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; CHECK-LABEL: @cmp_math_sexts(
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; CHECK-NEXT: [[GT:%.*]] = icmp ugt i32 [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: [[LT:%.*]] = icmp ult i32 [[X]], [[Y]]
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; CHECK-NEXT: [[XZ:%.*]] = sext i1 [[GT]] to i32
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; CHECK-NEXT: [[TMP1:%.*]] = sext i1 [[LT]] to i32
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; CHECK-NEXT: [[S:%.*]] = add nsw i32 [[XZ]], [[TMP1]]
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; CHECK-NEXT: [[R:%.*]] = lshr i32 [[S]], 31
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; CHECK-NEXT: ret i32 [[R]]
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;
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%gt = icmp ugt i32 %x, %y
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%lt = icmp ult i32 %x, %y
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%xz = sext i1 %gt to i32
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%yz = zext i1 %lt to i32
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%s = sub i32 %xz, %yz
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%r = lshr i32 %s, 31
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ret i32 %r
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}
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; Negative test - wrong type
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define i32 @lshr_add_nonbool_sexts(i2 %x, i1 %y) {
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; CHECK-LABEL: @lshr_add_nonbool_sexts(
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; CHECK-NEXT: [[XS:%.*]] = sext i2 [[X:%.*]] to i32
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; CHECK-NEXT: [[YS:%.*]] = sext i1 [[Y:%.*]] to i32
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; CHECK-NEXT: [[SUB:%.*]] = add nsw i32 [[XS]], [[YS]]
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; CHECK-NEXT: [[R:%.*]] = lshr i32 [[SUB]], 31
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; CHECK-NEXT: ret i32 [[R]]
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;
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%xs = sext i2 %x to i32
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%ys = sext i1 %y to i32
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%sub = add i32 %xs, %ys
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%r = lshr i32 %sub, 31
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ret i32 %r
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}
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; Negative test - wrong demand
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define i32 @and31_add_sexts(i1 %x, i1 %y) {
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; CHECK-LABEL: @and31_add_sexts(
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; CHECK-NEXT: [[XS:%.*]] = sext i1 [[X:%.*]] to i32
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; CHECK-NEXT: [[YS:%.*]] = sext i1 [[Y:%.*]] to i32
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; CHECK-NEXT: [[SUB:%.*]] = add nsw i32 [[XS]], [[YS]]
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; CHECK-NEXT: [[R:%.*]] = and i32 [[SUB]], 31
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; CHECK-NEXT: ret i32 [[R]]
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;
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%xs = sext i1 %x to i32
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%ys = sext i1 %y to i32
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%sub = add i32 %xs, %ys
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%r = and i32 %sub, 31
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ret i32 %r
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}
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; Negative test - extra use
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define i32 @lshr_add_use_sexts(i1 %x, i1 %y, i32* %p) {
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; CHECK-LABEL: @lshr_add_use_sexts(
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; CHECK-NEXT: [[XS:%.*]] = sext i1 [[X:%.*]] to i32
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; CHECK-NEXT: store i32 [[XS]], i32* [[P:%.*]], align 4
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; CHECK-NEXT: [[YS:%.*]] = sext i1 [[Y:%.*]] to i32
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; CHECK-NEXT: [[SUB:%.*]] = add nsw i32 [[XS]], [[YS]]
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; CHECK-NEXT: [[R:%.*]] = lshr i32 [[SUB]], 31
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; CHECK-NEXT: ret i32 [[R]]
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;
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%xs = sext i1 %x to i32
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store i32 %xs, i32* %p
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%ys = sext i1 %y to i32
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%sub = add i32 %xs, %ys
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%r = lshr i32 %sub, 31
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ret i32 %r
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}
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; Negative test - extra use
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define i32 @lshr_add_use2_sexts(i1 %x, i1 %y, i32* %p) {
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; CHECK-LABEL: @lshr_add_use2_sexts(
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; CHECK-NEXT: [[XS:%.*]] = sext i1 [[X:%.*]] to i32
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; CHECK-NEXT: [[YS:%.*]] = sext i1 [[Y:%.*]] to i32
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; CHECK-NEXT: store i32 [[YS]], i32* [[P:%.*]], align 4
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; CHECK-NEXT: [[SUB:%.*]] = add nsw i32 [[XS]], [[YS]]
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; CHECK-NEXT: [[R:%.*]] = lshr i32 [[SUB]], 31
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; CHECK-NEXT: ret i32 [[R]]
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;
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%xs = sext i1 %x to i32
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%ys = sext i1 %y to i32
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store i32 %ys, i32* %p
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%sub = add i32 %xs, %ys
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%r = lshr i32 %sub, 31
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ret i32 %r
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}
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