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authorChris Lattner <sabre@nondot.org>2003-01-16 02:20:12 +0000
committerChris Lattner <sabre@nondot.org>2003-01-16 02:20:12 +0000
commitf158da2f78b5bedbffddeb15ff19de647954e645 (patch)
treedf883091472e4d57940ac89318503bfa46029b74 /lib/Target/X86/X86ISelSimple.cpp
parenteafa42388160fa28621934392a7c5a22dbea54d0 (diff)
Implement code to keep the stack pointer aligned to an 8 byte boundary.
This improves the performance of the power benchmark by a few percent. This will be neccesary for SSE code, which requires 16 byte alignment of the stack. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5320 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86/X86ISelSimple.cpp')
-rw-r--r--lib/Target/X86/X86ISelSimple.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/Target/X86/X86ISelSimple.cpp b/lib/Target/X86/X86ISelSimple.cpp
index ee8318f22d..8351f09a07 100644
--- a/lib/Target/X86/X86ISelSimple.cpp
+++ b/lib/Target/X86/X86ISelSimple.cpp
@@ -386,7 +386,7 @@ void ISel::LoadArgumentsToVirtualRegs(Function &Fn) {
// [ESP + 8] -- second argument, if first argument is four bytes in size
// ...
//
- unsigned ArgOffset = 4;
+ unsigned ArgOffset = 0; // Frame mechanisms handle retaddr slot
MachineFrameInfo *MFI = F->getFrameInfo();
for (Function::aiterator I = Fn.abegin(), E = Fn.aend(); I != E; ++I) {