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
40 lines
885 B
LLVM
40 lines
885 B
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -S -passes=ipsccp | FileCheck %s
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; PR5596
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; IPSCCP should propagate the 0 argument, eliminate the switch, and propagate
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; the result.
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define i32 @main() noreturn nounwind {
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; CHECK-LABEL: @main(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: ret i32 123
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;
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entry:
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%call2 = tail call i32 @wwrite(i64 0) nounwind
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ret i32 %call2
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}
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define internal i32 @wwrite(i64 %i) nounwind readnone willreturn {
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; CHECK-LABEL: @wwrite(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br label [[SW_DEFAULT:%.*]]
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; CHECK: sw.default:
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; CHECK-NEXT: ret i32 undef
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;
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entry:
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switch i64 %i, label %sw.default [
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i64 3, label %return
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i64 10, label %return
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]
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sw.default:
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ret i32 123
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return:
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ret i32 0
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}
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; CHECK: attributes #0 = { noreturn nounwind }
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; CHECK: attributes #1 = { nounwind readnone willreturn }
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