#include "llvm/IR/Constants.h"
#include "llvm/IR/DebugInfo.h"
#include "llvm/IR/DiagnosticInfo.h"
+#include "llvm/IR/DIBuilder.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/IRBuilder.h"
#include "llvm/IR/Instruction.h"
return true;
}
+// Upgrade the declarations of intrinsic functions whose 8-bit immediate mask
+// arguments have changed their type from i32 to i8.
+static bool UpgradeX86IntrinsicsWith8BitMask(Function *F, Intrinsic::ID IID,
+ Function *&NewFn) {
+ // Check that the last argument is an i32.
+ Type *LastArgType = F->getFunctionType()->getParamType(
+ F->getFunctionType()->getNumParams() - 1);
+ if (!LastArgType->isIntegerTy(32))
+ return false;
+
+ // Move this function aside and map down.
+ F->setName(F->getName() + ".old");
+ NewFn = Intrinsic::getDeclaration(F->getParent(), IID);
+ return true;
+}
+
static bool UpgradeIntrinsicFunction1(Function *F, Function *&NewFn) {
assert(F && "Illegal to upgrade a non-existent Function.");
}
break;
}
+ case 'd': {
+ if (Name.startswith("dbg.declare") && F->arg_size() == 2) {
+ F->setName(Name + ".old");
+ NewFn = Intrinsic::getDeclaration(F->getParent(), Intrinsic::dbg_declare);
+ return true;
+ }
+ if (Name.startswith("dbg.value") && F->arg_size() == 3) {
+ F->setName(Name + ".old");
+ NewFn = Intrinsic::getDeclaration(F->getParent(), Intrinsic::dbg_value);
+ return true;
+ }
+ break;
+ }
+
case 'o':
// We only need to change the name to match the mangling including the
// address space.
if (Name == "x86.sse41.ptestnzc")
return UpgradeSSE41Function(F, Intrinsic::x86_sse41_ptestnzc, NewFn);
}
+ // Several blend and other instructions with maskes used the wrong number of
+ // bits.
+ if (Name == "x86.sse41.pblendw")
+ return UpgradeX86IntrinsicsWith8BitMask(F, Intrinsic::x86_sse41_pblendw,
+ NewFn);
+ if (Name == "x86.sse41.blendpd")
+ return UpgradeX86IntrinsicsWith8BitMask(F, Intrinsic::x86_sse41_blendpd,
+ NewFn);
+ if (Name == "x86.sse41.blendps")
+ return UpgradeX86IntrinsicsWith8BitMask(F, Intrinsic::x86_sse41_blendps,
+ NewFn);
+ if (Name == "x86.sse41.insertps")
+ return UpgradeX86IntrinsicsWith8BitMask(F, Intrinsic::x86_sse41_insertps,
+ NewFn);
+ if (Name == "x86.sse41.dppd")
+ return UpgradeX86IntrinsicsWith8BitMask(F, Intrinsic::x86_sse41_dppd,
+ NewFn);
+ if (Name == "x86.sse41.dpps")
+ return UpgradeX86IntrinsicsWith8BitMask(F, Intrinsic::x86_sse41_dpps,
+ NewFn);
+ if (Name == "x86.sse41.mpsadbw")
+ return UpgradeX86IntrinsicsWith8BitMask(F, Intrinsic::x86_sse41_mpsadbw,
+ NewFn);
+ if (Name == "x86.avx.blend.pd.256")
+ return UpgradeX86IntrinsicsWith8BitMask(
+ F, Intrinsic::x86_avx_blend_pd_256, NewFn);
+ if (Name == "x86.avx.blend.ps.256")
+ return UpgradeX86IntrinsicsWith8BitMask(
+ F, Intrinsic::x86_avx_blend_ps_256, NewFn);
+ if (Name == "x86.avx.dp.ps.256")
+ return UpgradeX86IntrinsicsWith8BitMask(F, Intrinsic::x86_avx_dp_ps_256,
+ NewFn);
+ if (Name == "x86.avx2.pblendw")
+ return UpgradeX86IntrinsicsWith8BitMask(F, Intrinsic::x86_avx2_pblendw,
+ NewFn);
+ if (Name == "x86.avx2.pblendd.128")
+ return UpgradeX86IntrinsicsWith8BitMask(
+ F, Intrinsic::x86_avx2_pblendd_128, NewFn);
+ if (Name == "x86.avx2.pblendd.256")
+ return UpgradeX86IntrinsicsWith8BitMask(
+ F, Intrinsic::x86_avx2_pblendd_256, NewFn);
+ if (Name == "x86.avx2.mpsadbw")
+ return UpgradeX86IntrinsicsWith8BitMask(F, Intrinsic::x86_avx2_mpsadbw,
+ NewFn);
+
// frcz.ss/sd may need to have an argument dropped
if (Name.startswith("x86.xop.vfrcz.ss") && F->arg_size() == 2) {
F->setName(Name + ".old");
return false;
}
+static MDNode *getNodeField(const MDNode *DbgNode, unsigned Elt) {
+ if (!DbgNode || Elt >= DbgNode->getNumOperands())
+ return nullptr;
+ return dyn_cast_or_null<MDNode>(DbgNode->getOperand(Elt));
+}
+
+static DIExpression getExpression(Value *VarOperand, Function *F) {
+ // Old-style DIVariables have an optional expression as the 8th element.
+ DIExpression Expr(getNodeField(cast<MDNode>(VarOperand), 8));
+ if (!Expr) {
+ DIBuilder DIB(*F->getParent());
+ Expr = DIB.createExpression();
+ }
+ return Expr;
+}
+
// UpgradeIntrinsicCall - Upgrade a call to an old intrinsic to be a call the
// upgraded intrinsic. All argument and return casting must be provided in
// order to seamlessly integrate with existing context.
}
std::string Name = CI->getName().str();
- CI->setName(Name + ".old");
+ if (!Name.empty())
+ CI->setName(Name + ".old");
switch (NewFn->getIntrinsicID()) {
default:
llvm_unreachable("Unknown function for CallInst upgrade.");
+ // Upgrade debug intrinsics to use an additional DIExpression argument.
+ case Intrinsic::dbg_declare: {
+ auto NewCI =
+ Builder.CreateCall3(NewFn, CI->getArgOperand(0), CI->getArgOperand(1),
+ getExpression(CI->getArgOperand(1), F), Name);
+ NewCI->setDebugLoc(CI->getDebugLoc());
+ CI->replaceAllUsesWith(NewCI);
+ CI->eraseFromParent();
+ return;
+ }
+ case Intrinsic::dbg_value: {
+ auto NewCI = Builder.CreateCall4(
+ NewFn, CI->getArgOperand(0), CI->getArgOperand(1), CI->getArgOperand(2),
+ getExpression(CI->getArgOperand(2), F), Name);
+ NewCI->setDebugLoc(CI->getDebugLoc());
+ CI->replaceAllUsesWith(NewCI);
+ CI->eraseFromParent();
+ return;
+ }
case Intrinsic::ctlz:
case Intrinsic::cttz:
assert(CI->getNumArgOperands() == 1 &&
CI->eraseFromParent();
return;
}
+
+ case Intrinsic::x86_sse41_pblendw:
+ case Intrinsic::x86_sse41_blendpd:
+ case Intrinsic::x86_sse41_blendps:
+ case Intrinsic::x86_sse41_insertps:
+ case Intrinsic::x86_sse41_dppd:
+ case Intrinsic::x86_sse41_dpps:
+ case Intrinsic::x86_sse41_mpsadbw:
+ case Intrinsic::x86_avx_blend_pd_256:
+ case Intrinsic::x86_avx_blend_ps_256:
+ case Intrinsic::x86_avx_dp_ps_256:
+ case Intrinsic::x86_avx2_pblendw:
+ case Intrinsic::x86_avx2_pblendd_128:
+ case Intrinsic::x86_avx2_pblendd_256:
+ case Intrinsic::x86_avx2_mpsadbw: {
+ // Need to truncate the last argument from i32 to i8 -- this argument models
+ // an inherently 8-bit immediate operand to these x86 instructions.
+ SmallVector<Value *, 4> Args(CI->arg_operands().begin(),
+ CI->arg_operands().end());
+
+ // Replace the last argument with a trunc.
+ Args.back() = Builder.CreateTrunc(Args.back(), Type::getInt8Ty(C), "trunc");
+
+ CallInst *NewCall = Builder.CreateCall(NewFn, Args);
+ CI->replaceAllUsesWith(NewCall);
+ CI->eraseFromParent();
+ return;
+ }
}
}
projects / oota-llvm.git / blobdiff