From: Chris Lattner <sabre@nondot.org>
Date: Mon, 24 Sep 2007 05:27:37 +0000 (+0000)
Subject: claim that "st" is from the 80-bit register file.  This causes x87-using inline
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=9b4baf169299141692e07adedeff691b71e95fda;p=oota-llvm.git

claim that "st" is from the 80-bit register file.  This causes x87-using inline
asm to die with:

ScheduleDAG.cpp:269: failed assertion `false && "Couldn't find the register class"'

instead of:
failed assertion `RegMap->getRegClass(VReg) == RC && "Register class of operand and regclass of use don't agree!"'

yay.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42259 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp
index e52b6531faf..1e5e478593f 100644
--- a/lib/Target/X86/X86ISelLowering.cpp
+++ b/lib/Target/X86/X86ISelLowering.cpp
@@ -5279,7 +5279,7 @@ X86TargetLowering::getRegForInlineAsmConstraint(const std::string &Constraint,
     // GCC calls "st(0)" just plain "st".
     if (StringsEqualNoCase("{st}", Constraint)) {
       Res.first = X86::ST0;
-      Res.second = X86::RSTRegisterClass;
+      Res.second = X86::RFP80RegisterClass;
     }
 
     return Res;