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
29 lines
720 B
LLVM
29 lines
720 B
LLVM
; RUN: opt < %s -passes=globalopt -S | FileCheck %s
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@a = internal global i64* null, align 8
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; CHECK: @a
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; PR13968
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define void @qux_no_null_opt() nounwind #0 {
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; CHECK-LABEL: @qux_no_null_opt(
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; CHECK: getelementptr i64*, i64** @a, i32 1
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; CHECK: store i64* inttoptr (i64 1 to i64*), i64** @a
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%b = bitcast i64** @a to i8*
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%g = getelementptr i64*, i64** @a, i32 1
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%cmp = icmp ne i8* null, %b
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%cmp2 = icmp eq i8* null, %b
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%cmp3 = icmp eq i64** null, %g
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store i64* inttoptr (i64 1 to i64*), i64** @a, align 8
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%l = load i64*, i64** @a, align 8
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ret void
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}
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define i64* @bar() {
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%X = load i64*, i64** @a, align 8
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ret i64* %X
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; CHECK-LABEL: @bar(
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; CHECK: load
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}
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attributes #0 = { null_pointer_is_valid }
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