From 88835735f49c3fce20698a72898df83bd84bd1cd Mon Sep 17 00:00:00 2001
From: Dale Johannesen <dalej@apple.com>
Date: Mon, 6 Aug 2007 19:50:32 +0000
Subject: [PATCH] Make 80-bit store maintain simulated FP stack correctly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40868 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/X86/X86FloatingPoint.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/Target/X86/X86FloatingPoint.cpp b/lib/Target/X86/X86FloatingPoint.cpp
index e481406d11d..ebf4a5756f5 100644
--- a/lib/Target/X86/X86FloatingPoint.cpp
+++ b/lib/Target/X86/X86FloatingPoint.cpp
@@ -629,7 +629,8 @@ void FPS::handleOneArgFP(MachineBasicBlock::iterator &I) {
   if (MI->getOpcode() == X86::IST_FP64m ||
       MI->getOpcode() == X86::ISTT_FP16m ||
       MI->getOpcode() == X86::ISTT_FP32m ||
-      MI->getOpcode() == X86::ISTT_FP64m) {
+      MI->getOpcode() == X86::ISTT_FP64m ||
+      MI->getOpcode() == X86::ST_FP80m) {
     assert(StackTop > 0 && "Stack empty??");
     --StackTop;
   } else if (KillsSrc) { // Last use of operand?