forked from OSchip/llvm-project
23 lines
651 B
LLVM
23 lines
651 B
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; REQUIRES: asserts
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; RUN: opt -S -debug-counter=newgvn-vn-skip=1,newgvn-vn-count=2 -newgvn < %s 2>&1 | FileCheck %s
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;; Test that, with debug counters on, we don't value number the first instruction, only the second and third,
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;; which means we do not discover the return is constant.
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define i32 @vntest() {
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; CHECK-LABEL: @vntest(
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; CHECK-NEXT: bb:
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; CHECK-NEXT: [[A:%.*]] = add i32 1, 3
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; CHECK-NEXT: [[D:%.*]] = add i32 8, 8
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; CHECK-NEXT: ret i32 [[D]]
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;
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bb:
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%a = add i32 1, 3
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%b = add i32 %a, %a
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%c = add i32 %a, %a
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%d = add i32 %b, %c
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ret i32 %d
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}
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