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
37 lines
1.4 KiB
LLVM
37 lines
1.4 KiB
LLVM
; RUN: opt < %s -passes=globalopt -S | FileCheck %s
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; CHECK: phi{{.*}}@head
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; PR3321
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"
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target triple = "x86_64-unknown-linux-gnu"
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%struct.node = type { %struct.node*, i32 }
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@head = internal global %struct.node* null ; <%struct.node**> [#uses=2]
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@node = internal global %struct.node { %struct.node* null, i32 42 }, align 16 ; <%struct.node*> [#uses=1]
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define i32 @f() nounwind {
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entry:
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store %struct.node* @node, %struct.node** @head, align 8
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br label %bb1
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bb: ; preds = %bb1
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%0 = getelementptr %struct.node, %struct.node* %t.0, i64 0, i32 1 ; <i32*> [#uses=1]
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%1 = load i32, i32* %0, align 4 ; <i32> [#uses=1]
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%2 = getelementptr %struct.node, %struct.node* %t.0, i64 0, i32 0 ; <%struct.node**> [#uses=1]
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br label %bb1
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bb1: ; preds = %bb, %entry
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%value.0 = phi i32 [ undef, %entry ], [ %1, %bb ] ; <i32> [#uses=1]
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%t.0.in = phi %struct.node** [ @head, %entry ], [ %2, %bb ] ; <%struct.node**> [#uses=1]
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%t.0 = load %struct.node*, %struct.node** %t.0.in ; <%struct.node*> [#uses=3]
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%3 = icmp eq %struct.node* %t.0, null ; <i1> [#uses=1]
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br i1 %3, label %bb2, label %bb
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bb2: ; preds = %bb1
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ret i32 %value.0
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}
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define i32 @main() nounwind {
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entry:
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%0 = call i32 @f() nounwind ; <i32> [#uses=1]
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ret i32 %0
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}
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