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
67 lines
2.2 KiB
LLVM
67 lines
2.2 KiB
LLVM
; RUN: opt < %s -passes=globalopt -S | FileCheck %s
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@c = global i8 42
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@i = internal global i8 42
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; CHECK: @ia = internal global i8 42
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@ia = internal alias i8, i8* @i
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@llvm.used = appending global [3 x i8*] [i8* bitcast (void ()* @fa to i8*), i8* bitcast (void ()* @f to i8*), i8* @ca], section "llvm.metadata"
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; CHECK-DAG: @llvm.used = appending global [3 x i8*] [i8* @ca, i8* bitcast (void ()* @f to i8*), i8* bitcast (void ()* @fa to i8*)], section "llvm.metadata"
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@llvm.compiler.used = appending global [4 x i8*] [i8* bitcast (void ()* @fa3 to i8*), i8* bitcast (void ()* @fa to i8*), i8* @ia, i8* @i], section "llvm.metadata"
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; CHECK-DAG: @llvm.compiler.used = appending global [2 x i8*] [i8* bitcast (void ()* @fa3 to i8*), i8* @ia], section "llvm.metadata"
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@sameAsUsed = global [3 x i8*] [i8* bitcast (void ()* @fa to i8*), i8* bitcast (void ()* @f to i8*), i8* @ca]
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; CHECK-DAG: @sameAsUsed = local_unnamed_addr global [3 x i8*] [i8* bitcast (void ()* @f to i8*), i8* bitcast (void ()* @f to i8*), i8* @c]
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@other = global i32* bitcast (void ()* @fa to i32*)
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; CHECK-DAG: @other = local_unnamed_addr global i32* bitcast (void ()* @f to i32*)
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@fa = internal alias void (), void ()* @f
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; CHECK: @fa = internal alias void (), void ()* @f
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@fa2 = internal alias void (), void ()* @f
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; CHECK-NOT: @fa2
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@fa3 = internal alias void (), void ()* @f
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; CHECK: @fa3
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@ca = internal alias i8, i8* @c
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; CHECK: @ca = internal alias i8, i8* @c
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define void @f() {
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ret void
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}
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define i8* @g() {
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ret i8* bitcast (void ()* @fa to i8*);
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}
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define i8* @g2() {
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ret i8* bitcast (void ()* @fa2 to i8*);
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}
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define i8* @h() {
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ret i8* @ca
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}
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; Check that GlobalOpt doesn't try to resolve aliases with GEP operands.
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%struct.S = type { i32, i32, i32 }
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@s = global %struct.S { i32 1, i32 2, i32 3 }, align 4
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@alias1 = alias i32, i32* getelementptr inbounds (%struct.S, %struct.S* @s, i64 0, i32 1)
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@alias2 = alias i32, i32* getelementptr inbounds (%struct.S, %struct.S* @s, i64 0, i32 2)
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; CHECK: load i32, i32* @alias1, align 4
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; CHECK: load i32, i32* @alias2, align 4
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define i32 @foo1() {
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entry:
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%0 = load i32, i32* @alias1, align 4
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%1 = load i32, i32* @alias2, align 4
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%add = add nsw i32 %1, %0
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ret i32 %add
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}
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