diff options
| -rw-r--r-- | lib/Target/X86/X86ISelDAGToDAG.cpp | 3 | ||||
| -rw-r--r-- | test/CodeGen/X86/combiner-aa-1.ll | 23 |
2 files changed, 25 insertions, 1 deletions
diff --git a/lib/Target/X86/X86ISelDAGToDAG.cpp b/lib/Target/X86/X86ISelDAGToDAG.cpp index 22d676e5df..a900a69ba7 100644 --- a/lib/Target/X86/X86ISelDAGToDAG.cpp +++ b/lib/Target/X86/X86ISelDAGToDAG.cpp @@ -447,7 +447,8 @@ static bool isCalleeLoad(SDValue Callee, SDValue &Chain) { if (Chain.getOperand(0).getNode() == Callee.getNode()) return true; if (Chain.getOperand(0).getOpcode() == ISD::TokenFactor && - Callee.getValue(1).isOperandOf(Chain.getOperand(0).getNode())) + Callee.getValue(1).isOperandOf(Chain.getOperand(0).getNode()) && + Callee.getValue(1).hasOneUse()) return true; return false; } diff --git a/test/CodeGen/X86/combiner-aa-1.ll b/test/CodeGen/X86/combiner-aa-1.ll new file mode 100644 index 0000000000..58a7129b60 --- /dev/null +++ b/test/CodeGen/X86/combiner-aa-1.ll @@ -0,0 +1,23 @@ +; RUN: llc < %s --combiner-alias-analysis --combiner-global-alias-analysis +; PR4880 + +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" +target triple = "i386-pc-linux-gnu" + +%struct.alst_node = type { %struct.node } +%struct.arg_node = type { %struct.node, i8*, %struct.alst_node* } +%struct.arglst_node = type { %struct.alst_node, %struct.arg_node*, %struct.arglst_node* } +%struct.lam_node = type { %struct.alst_node, %struct.arg_node*, %struct.alst_node* } +%struct.node = type { i32 (...)**, %struct.node* } + +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) { +comb_entry: + %.SV59 = alloca %struct.node* ; <%struct.node**> [#uses=1] + %0 = load i32 (...)*** null, align 4 ; <i32 (...)**> [#uses=1] + %1 = getelementptr inbounds i32 (...)** %0, i32 3 ; <i32 (...)**> [#uses=1] + %2 = load i32 (...)** %1, align 4 ; <i32 (...)*> [#uses=1] + store %struct.node* undef, %struct.node** %.SV59 + %3 = bitcast i32 (...)* %2 to i32 (%struct.node*)* ; <i32 (%struct.node*)*> [#uses=1] + %4 = tail call i32 %3(%struct.node* undef) ; <i32> [#uses=0] + unreachable +} |