5fc9449c96
It doesn't matter which value we use for dead args, so let's switch to poison, so we can eventually kill undef. Reviewed By: aeubanks, fhahn Differential Revision: https://reviews.llvm.org/D125983
23 lines
620 B
LLVM
23 lines
620 B
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -passes=deadargelim -S | FileCheck %s
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declare void @sideeffect()
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define void @unused_byref_arg(i32* byref(i32) %dead_arg) {
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; CHECK-LABEL: @unused_byref_arg(
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; CHECK-NEXT: tail call void @sideeffect()
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; CHECK-NEXT: ret void
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;
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tail call void @sideeffect()
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ret void
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}
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define void @dont_replace_by_poison(i32* %ptr) {
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; CHECK-LABEL: @dont_replace_by_poison(
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; CHECK-NEXT: call void @unused_byref_arg(i32* byref(i32) poison)
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; CHECK-NEXT: ret void
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;
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call void @unused_byref_arg(i32* byref(i32) %ptr)
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ret void
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}
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