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has multiple uses, as one of the other uses may be on a path to a different node above the callseq_start, because that leads to a cyclic graph. This problem is exposed when -combiner-global-alias-analysis is used. This fixes PR4880. llvm-svn: 81821
24 lines
1.4 KiB
LLVM
24 lines
1.4 KiB
LLVM
; RUN: llc < %s --combiner-alias-analysis --combiner-global-alias-analysis
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; PR4880
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target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32"
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target triple = "i386-pc-linux-gnu"
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%struct.alst_node = type { %struct.node }
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%struct.arg_node = type { %struct.node, i8*, %struct.alst_node* }
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%struct.arglst_node = type { %struct.alst_node, %struct.arg_node*, %struct.arglst_node* }
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%struct.lam_node = type { %struct.alst_node, %struct.arg_node*, %struct.alst_node* }
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%struct.node = type { i32 (...)**, %struct.node* }
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define i32 @._ZN8lam_node18resolve_name_clashEP8arg_nodeP9alst_node._ZNK8lam_nodeeqERK8exp_node._ZN11arglst_nodeD0Ev(%struct.lam_node* %this.this, %struct.arg_node* %outer_arg, %struct.alst_node* %env.cmp, %struct.arglst_node* %this, i32 %functionID) {
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comb_entry:
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%.SV59 = alloca %struct.node* ; <%struct.node**> [#uses=1]
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%0 = load i32 (...)*** null, align 4 ; <i32 (...)**> [#uses=1]
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%1 = getelementptr inbounds i32 (...)** %0, i32 3 ; <i32 (...)**> [#uses=1]
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%2 = load i32 (...)** %1, align 4 ; <i32 (...)*> [#uses=1]
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store %struct.node* undef, %struct.node** %.SV59
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%3 = bitcast i32 (...)* %2 to i32 (%struct.node*)* ; <i32 (%struct.node*)*> [#uses=1]
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%4 = tail call i32 %3(%struct.node* undef) ; <i32> [#uses=0]
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unreachable
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}
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