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Handle (store &GV -> mem) as a store immediate. This often occurs for
printf format strings and other stuff. Instead of generating this: movl $l1__2E_str_1, %eax movl %eax, (%esp) we now emit: movl $l1__2E_str_1, (%esp) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21406 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -3120,6 +3120,20 @@ void ISel::Select(SDOperand N) {
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addFullAddress(BuildMI(BB, Opc, 4+1), AM).addImm(CN->getValue());
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return;
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}
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} else if (GlobalAddressSDNode *GA =
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dyn_cast<GlobalAddressSDNode>(N.getOperand(1))) {
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assert(GA->getValueType(0) == MVT::i32 && "Bad pointer operand");
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if (getRegPressure(N.getOperand(0)) > getRegPressure(N.getOperand(2))) {
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Select(N.getOperand(0));
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SelectAddress(N.getOperand(2), AM);
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} else {
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SelectAddress(N.getOperand(2), AM);
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Select(N.getOperand(0));
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}
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addFullAddress(BuildMI(BB, X86::MOV32mi, 4+1),
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AM).addGlobalAddress(GA->getGlobal());
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return;
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}
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// Check to see if this is a load/op/store combination.
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