eliminate dead variables, patch contributed by Gabor Greif!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20812 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/PowerPC/PPC32ISelSimple.cpp b/lib/Target/PowerPC/PPC32ISelSimple.cpp
index c3675dc2cda67ac2787b0ea546e0df5cbf9d1578..f2b5cec2e1990a533d34a17fdeacd62d47341116 100644 (file)
--- a/lib/Target/PowerPC/PPC32ISelSimple.cpp
+++ b/lib/Target/PowerPC/PPC32ISelSimple.cpp
@@ -1914,7 +1914,6 @@ void PPC32ISel::LowerUnknownIntrinsicFunctionCalls(Function &F) {
           case Intrinsic::readio: {
             // On PPC, memory operations are in-order.  Lower this intrinsic
             // into a volatile load.
-            Instruction *Before = CI->getPrev();
             LoadInst * LI = new LoadInst(CI->getOperand(1), "", true, CI);
             CI->replaceAllUsesWith(LI);
             BB->getInstList().erase(CI);
@@ -1923,7 +1922,6 @@ void PPC32ISel::LowerUnknownIntrinsicFunctionCalls(Function &F) {
           case Intrinsic::writeio: {
             // On PPC, memory operations are in-order.  Lower this intrinsic
             // into a volatile store.
-            Instruction *Before = CI->getPrev();
             StoreInst *SI = new StoreInst(CI->getOperand(1),
                                           CI->getOperand(2), true, CI);
             CI->replaceAllUsesWith(SI);

diff --git a/lib/Target/PowerPC/PPC64ISelSimple.cpp b/lib/Target/PowerPC/PPC64ISelSimple.cpp
index 9fe3422383854f83120f5aaf2fc7a9174bbfb527..30531b6eeefd5a8740aa1717f0ff10ce336dbea5 100644 (file)
--- a/lib/Target/PowerPC/PPC64ISelSimple.cpp
+++ b/lib/Target/PowerPC/PPC64ISelSimple.cpp
@@ -1519,7 +1519,6 @@ void PPC64ISel::LowerUnknownIntrinsicFunctionCalls(Function &F) {
           case Intrinsic::readio: {
             // On PPC, memory operations are in-order.  Lower this intrinsic
             // into a volatile load.
-            Instruction *Before = CI->getPrev();
             LoadInst * LI = new LoadInst(CI->getOperand(1), "", true, CI);
             CI->replaceAllUsesWith(LI);
             BB->getInstList().erase(CI);
@@ -1528,7 +1527,6 @@ void PPC64ISel::LowerUnknownIntrinsicFunctionCalls(Function &F) {
           case Intrinsic::writeio: {
             // On PPC, memory operations are in-order.  Lower this intrinsic
             // into a volatile store.
-            Instruction *Before = CI->getPrev();
             StoreInst *SI = new StoreInst(CI->getOperand(1),
                                           CI->getOperand(2), true, CI);
             CI->replaceAllUsesWith(SI);

diff --git a/lib/Target/X86/X86ISelSimple.cpp b/lib/Target/X86/X86ISelSimple.cpp
index a40658946fc809570258a292fb13ee6be0c5e7ef..b39396854dd9d40ed7cafd1c679ec1f373cb5562 100644 (file)
--- a/lib/Target/X86/X86ISelSimple.cpp
+++ b/lib/Target/X86/X86ISelSimple.cpp
@@ -1762,7 +1762,6 @@ void X86ISel::LowerUnknownIntrinsicFunctionCalls(Function &F) {
           case Intrinsic::readio: {
             // On X86, memory operations are in-order.  Lower this intrinsic
             // into a volatile load.
-            Instruction *Before = CI->getPrev();
             LoadInst * LI = new LoadInst(CI->getOperand(1), "", true, CI);
             CI->replaceAllUsesWith(LI);
             BB->getInstList().erase(CI);
@@ -1771,7 +1770,6 @@ void X86ISel::LowerUnknownIntrinsicFunctionCalls(Function &F) {
           case Intrinsic::writeio: {
             // On X86, memory operations are in-order.  Lower this intrinsic
             // into a volatile store.
-            Instruction *Before = CI->getPrev();
             StoreInst *LI = new StoreInst(CI->getOperand(1),
                                           CI->getOperand(2), true, CI);
             CI->replaceAllUsesWith(LI);