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
38 lines
1.0 KiB
LLVM
38 lines
1.0 KiB
LLVM
; RUN: opt < %s -S -passes=globalopt | FileCheck %s
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; This global is externally_initialized, which may modify the value between
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; it's static initializer and any code in this module being run, so the only
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; write to it cannot be merged into the static initialiser.
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; CHECK: @a = internal unnamed_addr externally_initialized global i32 undef
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@a = internal externally_initialized global i32 undef
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; This global is stored to by the external initialization, so cannot be
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; constant-propagated and removed, despite the fact that there are no writes
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; to it.
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; CHECK: @b = internal unnamed_addr externally_initialized global i32 undef
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@b = internal externally_initialized global i32 undef
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define void @foo() {
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; CHECK-LABEL: foo
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entry:
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; CHECK: store i32 42, i32* @a
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store i32 42, i32* @a
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ret void
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}
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define i32 @bar() {
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; CHECK-LABEL: bar
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entry:
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; CHECK: %val = load i32, i32* @a
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%val = load i32, i32* @a
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ret i32 %val
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}
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define i32 @baz() {
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; CHECK-LABEL: baz
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entry:
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; CHECK: %val = load i32, i32* @b
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%val = load i32, i32* @b
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ret i32 %val
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}
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