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
31 lines
612 B
LLVM
31 lines
612 B
LLVM
; 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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; CHECK: define i32 @main() #0 {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: %call2 = tail call i32 @wwrite(i64 0) [[NUW:#[0-9]+]]
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; CHECK-NEXT: ret i32 123
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define i32 @main() noreturn nounwind {
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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 {
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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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