8ebb3eac02
The legacy PM is deprecated, so update a bunch of lit tests running opt to use the new PM syntax when specifying the pipeline. In this patch focus has been put on test cases for ConstantMerge, ConstraintElimination, CorrelatedValuePropagation, GlobalDCE, GlobalOpt, SCCP, TailCallElim and PredicateInfo. Differential Revision: https://reviews.llvm.org/D114516
48 lines
1.2 KiB
LLVM
48 lines
1.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -passes=ipsccp -S | FileCheck %s
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; This test case used to end up like this:
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;
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; While deleting: label %lor.rhs
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; Use still stuck around after Def is destroyed: br i1 undef, label %lor.rhs, label %land.end
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; opt: ../lib/IR/Value.cpp: llvm::Value::~Value(): Assertion `use_empty() && "Uses remain when a value is destroyed!"' failed.
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;
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; due to ConstantFoldTerminator rewriting the switch into
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;
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; br i1 undef, label %lor.rhs, label %land.end
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;
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; while SCCP implementation relied on the terminator to always be folded into
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; an unconditional branch when ConstantFoldTerminator returned true.
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define void @f4() {
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; CHECK-LABEL: define void @f4(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[CALL:%.*]] = call i16 @f3(i16 undef)
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; CHECK-NEXT: ret void
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;
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entry:
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%call = call i16 @f3(i16 undef)
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ret void
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}
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define internal i16 @f3(i16 %p1) {
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; CHECK-LABEL: define internal i16 @f3(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br label [[LAND_END:%.*]]
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; CHECK: land.end:
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; CHECK-NEXT: ret i16 undef
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;
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entry:
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switch i16 %p1, label %land.end [
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i16 0, label %land.end
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i16 1, label %lor.rhs
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]
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lor.rhs:
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br label %land.end
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land.end:
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ret i16 0
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}
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