34 lines
1.2 KiB
LLVM
34 lines
1.2 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -instcombine -o - -S %s | FileCheck %s
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; The constant at %v35 should be shrunk, but this must lead to the nsw flag of
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; %v43 getting removed.
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define i32 @foo(i32 %arg) {
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; CHECK-LABEL: @foo(
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; CHECK-NEXT: [[V33:%.*]] = and i32 [[ARG:%.*]], 223
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; CHECK-NEXT: [[V34:%.*]] = xor i32 [[V33]], 29
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; CHECK-NEXT: [[V35:%.*]] = add nuw nsw i32 [[V34]], 1362915575
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; CHECK-NEXT: [[V40:%.*]] = shl nuw nsw i32 [[V34]], 1
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; CHECK-NEXT: [[V41:%.*]] = and i32 [[V40]], 290
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; CHECK-NEXT: [[V42:%.*]] = sub nuw nsw i32 [[V35]], [[V41]]
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; CHECK-NEXT: [[V43:%.*]] = add nuw i32 [[V42]], 1533579450
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; CHECK-NEXT: [[V45:%.*]] = xor i32 [[V43]], 749011377
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; CHECK-NEXT: ret i32 [[V45]]
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;
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%v33 = and i32 %arg, 223
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%v34 = xor i32 %v33, 29
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%v35 = add nuw i32 %v34, 3510399223
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%v37 = or i32 %v34, 1874836915
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%v38 = and i32 %v34, 221
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%v39 = xor i32 %v38, 1874836915
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%v40 = xor i32 %v37, %v39
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%v41 = shl nsw nuw i32 %v40, 1
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%v42 = sub i32 %v35, %v41
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%v43 = add nsw i32 %v42, 1533579450
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%v44 = or i32 %v43, -2147483648
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%v45 = xor i32 %v44, 749011377
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ret i32 %v45
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}
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