From: Chris Lattner <sabre@nondot.org>
Date: Thu, 18 Mar 2004 06:29:54 +0000 (+0000)
Subject: Fix a really nasty bug that was breaking ijpeg in LLC mode.  We were incorrectly
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=85c84e759e86d3f6d77b6a1568e1c8d25cdf1814;p=oota-llvm.git

Fix a really nasty bug that was breaking ijpeg in LLC mode.  We were incorrectly
folding load instructions into other instructions across free instruction
boundaries.  Perhaps this will also fix the other strange failures?


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12494 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/X86/InstSelectSimple.cpp b/lib/Target/X86/InstSelectSimple.cpp
index 5fad0e788af..e631fdb6ff5 100644
--- a/lib/Target/X86/InstSelectSimple.cpp
+++ b/lib/Target/X86/InstSelectSimple.cpp
@@ -1422,6 +1422,8 @@ static bool isSafeToFoldLoadIntoInstruction(LoadInst &LI, Instruction &User) {
   // really use alias analysis here, but for now we just do something simple.
   for (++It; It != BasicBlock::iterator(&User); ++It) {
     switch (It->getOpcode()) {
+    case Instruction::Malloc:
+    case Instruction::Free:
     case Instruction::Store:
     case Instruction::Call:
     case Instruction::Invoke:
diff --git a/lib/Target/X86/X86ISelSimple.cpp b/lib/Target/X86/X86ISelSimple.cpp
index 5fad0e788af..e631fdb6ff5 100644
--- a/lib/Target/X86/X86ISelSimple.cpp
+++ b/lib/Target/X86/X86ISelSimple.cpp
@@ -1422,6 +1422,8 @@ static bool isSafeToFoldLoadIntoInstruction(LoadInst &LI, Instruction &User) {
   // really use alias analysis here, but for now we just do something simple.
   for (++It; It != BasicBlock::iterator(&User); ++It) {
     switch (It->getOpcode()) {
+    case Instruction::Malloc:
+    case Instruction::Free:
     case Instruction::Store:
     case Instruction::Call:
     case Instruction::Invoke: