25 lines
912 B
LLVM
25 lines
912 B
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -instcombine -S | FileCheck %s
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define i32 @PR38915(i32 %x, i32 %y, i32 %z) {
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; CHECK-LABEL: @PR38915(
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; CHECK-NEXT: [[TMP1:%.*]] = add i32 [[X:%.*]], -1
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; CHECK-NEXT: [[TMP2:%.*]] = add i32 [[Y:%.*]], -1
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; CHECK-NEXT: [[TMP3:%.*]] = icmp slt i32 [[TMP1]], [[TMP2]]
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; CHECK-NEXT: [[M1N:%.*]] = select i1 [[TMP3]], i32 [[TMP1]], i32 [[TMP2]]
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; CHECK-NEXT: [[C2:%.*]] = icmp sgt i32 [[M1N]], [[Z:%.*]]
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; CHECK-NEXT: [[M2:%.*]] = select i1 [[C2]], i32 [[M1N]], i32 [[Z]]
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; CHECK-NEXT: [[M2N:%.*]] = xor i32 [[M2]], -1
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; CHECK-NEXT: ret i32 [[M2N]]
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;
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%xn = sub i32 0, %x
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%yn = sub i32 0, %y
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%c1 = icmp sgt i32 %xn, %yn
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%m1 = select i1 %c1, i32 %xn, i32 %yn
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%m1n = xor i32 %m1, -1
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%c2 = icmp sgt i32 %m1n, %z
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%m2 = select i1 %c2, i32 %m1n, i32 %z
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%m2n = xor i32 %m2, -1
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ret i32 %m2n
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}
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