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Propagate TargetLibraryInfo throughout ConstantFolding.cpp and

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InstructionSimplify.cpp.  Other fixups as needed.
Part of rdar://10500969

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145559 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chad Rosier
2011-12-01 03:08:23 +00:00
parent 66d004ef70
commit 618c1dbd29
17 changed files with 456 additions and 279 deletions
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lib/Transforms/Utils/SimplifyInstructions.cpp
+9 -3
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@@ -24,6 +24,7 @@
#include "llvm/Analysis/Dominators.h"
#include "llvm/Analysis/InstructionSimplify.h"
#include "llvm/Target/TargetData.h"
#include "llvm/Target/TargetLibraryInfo.h"
#include "llvm/Transforms/Scalar.h"
#include "llvm/Transforms/Utils/Local.h"
using namespace llvm;
@@ -39,12 +40,14 @@ namespace {
void getAnalysisUsage(AnalysisUsage &AU) const {
AU.setPreservesCFG();
AU.addRequired<TargetLibraryInfo>();
}
/// runOnFunction - Remove instructions that simplify.
bool runOnFunction(Function &F) {
const DominatorTree *DT = getAnalysisIfAvailable<DominatorTree>();
const TargetData *TD = getAnalysisIfAvailable<TargetData>();
const TargetLibraryInfo *TLI = &getAnalysis<TargetLibraryInfo>();
SmallPtrSet<const Instruction*, 8> S1, S2, *ToSimplify = &S1, *Next = &S2;
bool Changed = false;
@@ -60,7 +63,7 @@ namespace {
continue;
// Don't waste time simplifying unused instructions.
if (!I->use_empty())
if (Value *V = SimplifyInstruction(I, TD, DT)) {
if (Value *V = SimplifyInstruction(I, TD, TLI, DT)) {
// Mark all uses for resimplification next time round the loop.
for (Value::use_iterator UI = I->use_begin(), UE = I->use_end();
UI != UE; ++UI)
@@ -84,8 +87,11 @@ namespace {
}
char InstSimplifier::ID = 0;
INITIALIZE_PASS(InstSimplifier, "instsimplify", "Remove redundant instructions",
false, false)
INITIALIZE_PASS_BEGIN(InstSimplifier, "instsimplify",
"Remove redundant instructions", false, false)
INITIALIZE_PASS_DEPENDENCY(TargetLibraryInfo)
INITIALIZE_PASS_END(InstSimplifier, "instsimplify",
"Remove redundant instructions", false, false)
char &llvm::InstructionSimplifierID = InstSimplifier::ID;
// Public interface to the simplify instructions pass.