reapply r101434
with a fix for self-hosting
rotate CallInst operands, i.e. move callee to the back
of the operand array
the motivation for this patch are laid out in my mail to llvm-commits:
more efficient access to operands and callee, faster callgraph-construction,
smaller compiler binary
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101465 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/MemoryBuiltins.cpp b/lib/Analysis/MemoryBuiltins.cpp
index 89f9743..d677a69 100644
--- a/lib/Analysis/MemoryBuiltins.cpp
+++ b/lib/Analysis/MemoryBuiltins.cpp
@@ -103,7 +103,7 @@
// If malloc calls' arg can be determined to be a multiple of ElementSize,
// return the multiple. Otherwise, return NULL.
- Value *MallocArg = CI->getOperand(1);
+ Value *MallocArg = CI->getOperand(0);
Value *Multiple = NULL;
if (ComputeMultiple(MallocArg, ElementSize, Multiple,
LookThroughSExt))
@@ -120,7 +120,7 @@
Value *ArraySize = computeArraySize(CI, TD);
if (ArraySize &&
- ArraySize != ConstantInt::get(CI->getOperand(1)->getType(), 1))
+ ArraySize != ConstantInt::get(CI->getOperand(0)->getType(), 1))
return CI;
// CI is a non-array malloc or we can't figure out that it is an array malloc.