From 5427edeb68d653ced860ed14f83848ebbb01b64b Mon Sep 17 00:00:00 2001 From: Eric Christopher Date: Thu, 14 Jul 2011 20:13:52 +0000 Subject: Check register class matching instead of width of type matching when determining validity of matching constraint. Allow i1 types access to the GR8 reg class for x86. Fixes PR10352 and rdar://9777108 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135180 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) (limited to 'lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp') diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp index 3a04ee1e93..81b03ee76a 100644 --- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp +++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp @@ -5706,10 +5706,13 @@ void SelectionDAGBuilder::visitInlineAsm(ImmutableCallSite CS) { SDISelAsmOperandInfo &Input = ConstraintOperands[OpInfo.MatchingInput]; if (OpInfo.ConstraintVT != Input.ConstraintVT) { + std::pair MatchRC = + TLI.getRegForInlineAsmConstraint(OpInfo.ConstraintCode, OpInfo.ConstraintVT); + std::pair InputRC = + TLI.getRegForInlineAsmConstraint(Input.ConstraintCode, Input.ConstraintVT); if ((OpInfo.ConstraintVT.isInteger() != Input.ConstraintVT.isInteger()) || - (OpInfo.ConstraintVT.getSizeInBits() != - Input.ConstraintVT.getSizeInBits())) { + (MatchRC.second != InputRC.second)) { report_fatal_error("Unsupported asm: input constraint" " with a matching output constraint of" " incompatible type!"); @@ -5972,8 +5975,7 @@ void SelectionDAGBuilder::visitInlineAsm(ImmutableCallSite CS) { "Don't know how to handle indirect register inputs yet!"); // Copy the input into the appropriate registers. - if (OpInfo.AssignedRegs.Regs.empty() || - !OpInfo.AssignedRegs.areValueTypesLegal(TLI)) + if (OpInfo.AssignedRegs.Regs.empty()) report_fatal_error("Couldn't allocate input reg for constraint '" + Twine(OpInfo.ConstraintCode) + "'!"); -- cgit v1.2.3-18-g5258