From 4086906a0f813065244cc9f845e45527ae704b58 Mon Sep 17 00:00:00 2001 From: Evan Cheng Date: Thu, 11 Sep 2008 18:40:32 +0000 Subject: Fix PR2783 - coalescer bug. Missing a TargetRegisterInfo::isVirtualRegister check. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56112 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/CodeGen/SimpleRegisterCoalescing.cpp | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'lib/CodeGen') diff --git a/lib/CodeGen/SimpleRegisterCoalescing.cpp b/lib/CodeGen/SimpleRegisterCoalescing.cpp index c6d4576e9c..2d4d590715 100644 --- a/lib/CodeGen/SimpleRegisterCoalescing.cpp +++ b/lib/CodeGen/SimpleRegisterCoalescing.cpp @@ -1319,7 +1319,8 @@ bool SimpleRegisterCoalescing::JoinCopy(CopyRec &TheCopy, bool &Again) { // If resulting interval has a preference that no longer fits because of subreg // coalescing, just clear the preference. - if (ResDstInt->preference && (isExtSubReg || isInsSubReg)) { + if (ResDstInt->preference && (isExtSubReg || isInsSubReg) && + TargetRegisterInfo::isVirtualRegister(ResDstInt->reg)) { const TargetRegisterClass *RC = mri_->getRegClass(ResDstInt->reg); if (!RC->contains(ResDstInt->preference)) ResDstInt->preference = 0; -- cgit v1.2.3