Enhance both TargetLibraryInfo and SelectionDAGBuilder so that the latter can use the former to prevent the formation of libm SDNode's when -fno-builtin is passed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146193 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index b7f5668..760c4e5 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -47,6 +47,7 @@
#include "llvm/Target/TargetFrameLowering.h"
#include "llvm/Target/TargetInstrInfo.h"
#include "llvm/Target/TargetIntrinsicInfo.h"
+#include "llvm/Target/TargetLibraryInfo.h"
#include "llvm/Target/TargetLowering.h"
#include "llvm/Target/TargetOptions.h"
#include "llvm/Support/CommandLine.h"
@@ -812,9 +813,11 @@
}
}
-void SelectionDAGBuilder::init(GCFunctionInfo *gfi, AliasAnalysis &aa) {
+void SelectionDAGBuilder::init(GCFunctionInfo *gfi, AliasAnalysis &aa,
+ const TargetLibraryInfo *li) {
AA = &aa;
GFI = gfi;
+ LibInfo = li;
TD = DAG.getTarget().getTargetData();
LPadToCallSiteMap.clear();
}
@@ -5509,7 +5512,9 @@
// can't be a library call.
if (!F->hasLocalLinkage() && F->hasName()) {
StringRef Name = F->getName();
- if (Name == "copysign" || Name == "copysignf" || Name == "copysignl") {
+ if ((LibInfo->has(LibFunc::copysign) && Name == "copysign") ||
+ (LibInfo->has(LibFunc::copysignf) && Name == "copysignf") ||
+ (LibInfo->has(LibFunc::copysignl) && Name == "copysignl")) {
if (I.getNumArgOperands() == 2 && // Basic sanity checks.
I.getArgOperand(0)->getType()->isFloatingPointTy() &&
I.getType() == I.getArgOperand(0)->getType() &&
@@ -5520,7 +5525,9 @@
LHS.getValueType(), LHS, RHS));
return;
}
- } else if (Name == "fabs" || Name == "fabsf" || Name == "fabsl") {
+ } else if ((LibInfo->has(LibFunc::fabs) && Name == "fabs") ||
+ (LibInfo->has(LibFunc::fabsf) && Name == "fabsf") ||
+ (LibInfo->has(LibFunc::fabsl) && Name == "fabsl")) {
if (I.getNumArgOperands() == 1 && // Basic sanity checks.
I.getArgOperand(0)->getType()->isFloatingPointTy() &&
I.getType() == I.getArgOperand(0)->getType()) {
@@ -5529,7 +5536,9 @@
Tmp.getValueType(), Tmp));
return;
}
- } else if (Name == "sin" || Name == "sinf" || Name == "sinl") {
+ } else if ((LibInfo->has(LibFunc::sin) && Name == "sin") ||
+ (LibInfo->has(LibFunc::sinf) && Name == "sinf") ||
+ (LibInfo->has(LibFunc::sinl) && Name == "sinl")) {
if (I.getNumArgOperands() == 1 && // Basic sanity checks.
I.getArgOperand(0)->getType()->isFloatingPointTy() &&
I.getType() == I.getArgOperand(0)->getType() &&
@@ -5539,7 +5548,9 @@
Tmp.getValueType(), Tmp));
return;
}
- } else if (Name == "cos" || Name == "cosf" || Name == "cosl") {
+ } else if ((LibInfo->has(LibFunc::cos) && Name == "cos") ||
+ (LibInfo->has(LibFunc::cosf) && Name == "cosf") ||
+ (LibInfo->has(LibFunc::cosl) && Name == "cosl")) {
if (I.getNumArgOperands() == 1 && // Basic sanity checks.
I.getArgOperand(0)->getType()->isFloatingPointTy() &&
I.getType() == I.getArgOperand(0)->getType() &&
@@ -5549,7 +5560,9 @@
Tmp.getValueType(), Tmp));
return;
}
- } else if (Name == "sqrt" || Name == "sqrtf" || Name == "sqrtl") {
+ } else if ((LibInfo->has(LibFunc::sqrt) && Name == "sqrt") ||
+ (LibInfo->has(LibFunc::sqrtf) && Name == "sqrtf") ||
+ (LibInfo->has(LibFunc::sqrtl) && Name == "sqrtl")) {
if (I.getNumArgOperands() == 1 && // Basic sanity checks.
I.getArgOperand(0)->getType()->isFloatingPointTy() &&
I.getType() == I.getArgOperand(0)->getType() &&
@@ -5559,7 +5572,9 @@
Tmp.getValueType(), Tmp));
return;
}
- } else if (Name == "floor" || Name == "floorf" || Name == "floorl") {
+ } else if ((LibInfo->has(LibFunc::floor) && Name == "floor") ||
+ (LibInfo->has(LibFunc::floorf) && Name == "floorf") ||
+ (LibInfo->has(LibFunc::floorl) && Name == "floorl")) {
if (I.getNumArgOperands() == 1 && // Basic sanity checks.
I.getArgOperand(0)->getType()->isFloatingPointTy() &&
I.getType() == I.getArgOperand(0)->getType()) {
@@ -5568,8 +5583,9 @@
Tmp.getValueType(), Tmp));
return;
}
- } else if (Name == "nearbyint" || Name == "nearbyintf" ||
- Name == "nearbyintl") {
+ } else if ((LibInfo->has(LibFunc::nearbyint) && Name == "nearbyint") ||
+ (LibInfo->has(LibFunc::nearbyintf) && Name == "nearbyintf") ||
+ (LibInfo->has(LibFunc::nearbyintl) && Name == "nearbyintl")) {
if (I.getNumArgOperands() == 1 && // Basic sanity checks.
I.getArgOperand(0)->getType()->isFloatingPointTy() &&
I.getType() == I.getArgOperand(0)->getType()) {
@@ -5578,7 +5594,9 @@
Tmp.getValueType(), Tmp));
return;
}
- } else if (Name == "ceil" || Name == "ceilf" || Name == "ceill") {
+ } else if ((LibInfo->has(LibFunc::ceil) && Name == "ceil") ||
+ (LibInfo->has(LibFunc::ceilf) && Name == "ceilf") ||
+ (LibInfo->has(LibFunc::ceill) && Name == "ceill")) {
if (I.getNumArgOperands() == 1 && // Basic sanity checks.
I.getArgOperand(0)->getType()->isFloatingPointTy() &&
I.getType() == I.getArgOperand(0)->getType()) {
@@ -5587,7 +5605,9 @@
Tmp.getValueType(), Tmp));
return;
}
- } else if (Name == "rint" || Name == "rintf" || Name == "rintl") {
+ } else if ((LibInfo->has(LibFunc::rint) && Name == "rint") ||
+ (LibInfo->has(LibFunc::rintf) && Name == "rintf") ||
+ (LibInfo->has(LibFunc::rintl) && Name == "rintl")) {
if (I.getNumArgOperands() == 1 && // Basic sanity checks.
I.getArgOperand(0)->getType()->isFloatingPointTy() &&
I.getType() == I.getArgOperand(0)->getType()) {
@@ -5596,7 +5616,9 @@
Tmp.getValueType(), Tmp));
return;
}
- } else if (Name == "trunc" || Name == "truncf" || Name == "truncl") {
+ } else if ((LibInfo->has(LibFunc::trunc) && Name == "trunc") ||
+ (LibInfo->has(LibFunc::truncf) && Name == "truncf") ||
+ (LibInfo->has(LibFunc::truncl) && Name == "truncl")) {
if (I.getNumArgOperands() == 1 && // Basic sanity checks.
I.getArgOperand(0)->getType()->isFloatingPointTy() &&
I.getType() == I.getArgOperand(0)->getType()) {
@@ -5605,7 +5627,6 @@
Tmp.getValueType(), Tmp));
return;
}
-
} else if (Name == "memcmp") {
if (visitMemCmpCall(I))
return;
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h
index 0a21ca3..5147b6c 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h
@@ -67,6 +67,7 @@
class StoreInst;
class SwitchInst;
class TargetData;
+class TargetLibraryInfo;
class TargetLowering;
class TruncInst;
class UIToFPInst;
@@ -294,6 +295,7 @@
SelectionDAG &DAG;
const TargetData *TD;
AliasAnalysis *AA;
+ const TargetLibraryInfo *LibInfo;
/// SwitchCases - Vector of CaseBlock structures used to communicate
/// SwitchInst code generation information.
@@ -338,7 +340,8 @@
HasTailCall(false), Context(dag.getContext()) {
}
- void init(GCFunctionInfo *gfi, AliasAnalysis &aa);
+ void init(GCFunctionInfo *gfi, AliasAnalysis &aa,
+ const TargetLibraryInfo *li);
/// clear - Clear out the current SelectionDAG and the associated
/// state and prepare this SelectionDAGBuilder object to be used
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index c709576..f626353 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -41,6 +41,7 @@
#include "llvm/Target/TargetRegisterInfo.h"
#include "llvm/Target/TargetIntrinsicInfo.h"
#include "llvm/Target/TargetInstrInfo.h"
+#include "llvm/Target/TargetLibraryInfo.h"
#include "llvm/Target/TargetLowering.h"
#include "llvm/Target/TargetMachine.h"
#include "llvm/Target/TargetOptions.h"
@@ -269,6 +270,7 @@
initializeGCModuleInfoPass(*PassRegistry::getPassRegistry());
initializeAliasAnalysisAnalysisGroup(*PassRegistry::getPassRegistry());
initializeBranchProbabilityInfoPass(*PassRegistry::getPassRegistry());
+ initializeTargetLibraryInfoPass(*PassRegistry::getPassRegistry());
}
SelectionDAGISel::~SelectionDAGISel() {
@@ -282,6 +284,7 @@
AU.addPreserved<AliasAnalysis>();
AU.addRequired<GCModuleInfo>();
AU.addPreserved<GCModuleInfo>();
+ AU.addRequired<TargetLibraryInfo>();
if (UseMBPI && OptLevel != CodeGenOpt::None)
AU.addRequired<BranchProbabilityInfo>();
MachineFunctionPass::getAnalysisUsage(AU);
@@ -339,6 +342,7 @@
MF = &mf;
RegInfo = &MF->getRegInfo();
AA = &getAnalysis<AliasAnalysis>();
+ LibInfo = &getAnalysis<TargetLibraryInfo>();
GFI = Fn.hasGC() ? &getAnalysis<GCModuleInfo>().getFunctionInfo(Fn) : 0;
DEBUG(dbgs() << "\n\n\n=== " << Fn.getName() << "\n");
@@ -353,7 +357,7 @@
else
FuncInfo->BPI = 0;
- SDB->init(GFI, *AA);
+ SDB->init(GFI, *AA, LibInfo);
SelectAllBasicBlocks(Fn);