// The stack is aligned to 32 bits on some ABIs and 128 bits on others.
if (!TT.isArch64Bit() && TT.isOSWindows())
- Ret += "-S32";
+ Ret += "-a:0:32-S32";
else
Ret += "-S128";
StringRef FS, const TargetOptions &Options,
Reloc::Model RM, CodeModel::Model CM,
CodeGenOpt::Level OL)
- : LLVMTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL),
+ : LLVMTargetMachine(T, computeDataLayout(Triple(TT)), TT, CPU, FS, Options,
+ RM, CM, OL),
TLOF(createTLOF(Triple(getTargetTriple()))),
- DL(computeDataLayout(Triple(TT))),
Subtarget(TT, CPU, FS, *this, Options.StackAlignmentOverride) {
- // default to hard float ABI
- if (Options.FloatABIType == FloatABI::Default)
- this->Options.FloatABIType = FloatABI::Hard;
-
// Windows stack unwinder gets confused when execution flow "falls through"
// after a call to 'noreturn' function.
// To prevent that, we emit a trap for 'unreachable' IR instructions.
// function before we can generate a subtarget. We also need to use
// it as a key for the subtarget since that can be the only difference
// between two functions.
- Attribute SFAttr = F.getFnAttribute("use-soft-float");
- bool SoftFloat = !SFAttr.hasAttribute(Attribute::None)
- ? SFAttr.getValueAsString() == "true"
- : Options.UseSoftFloat;
-
- auto &I = SubtargetMap[CPU + FS + (SoftFloat ? "use-soft-float=true"
- : "use-soft-float=false")];
+ bool SoftFloat =
+ F.hasFnAttribute("use-soft-float") &&
+ F.getFnAttribute("use-soft-float").getValueAsString() == "true";
+ // If the soft float attribute is set on the function turn on the soft float
+ // subtarget feature.
+ if (SoftFloat)
+ FS += FS.empty() ? "+soft-float" : ",+soft-float";
+
+ auto &I = SubtargetMap[CPU + FS];
if (!I) {
// This needs to be done before we create a new subtarget since any
// creation will depend on the TM and the code generation flags on the
void addIRPasses() override;
bool addInstSelector() override;
bool addILPOpts() override;
+ bool addPreISel() override;
void addPreRegAlloc() override;
void addPostRegAlloc() override;
void addPreEmitPass() override;
return true;
}
+bool X86PassConfig::addPreISel() {
+ // Only add this pass for 32-bit x86.
+ Triple TT(TM->getTargetTriple());
+ if (TT.getArch() == Triple::x86)
+ addPass(createX86WinEHStatePass());
+ return true;
+}
+
void X86PassConfig::addPreRegAlloc() {
addPass(createX86CallFrameOptimization());
}