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Introduce new ABI class for PPC64LE.

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The ABI for PPC/PPC64 big-endian is quite similar.
But the ABI for PPC64 little-endian is more like the ARM ABI.
This commit is contained in:
Kai Nacke 2016-03-26 00:48:40 +01:00
parent c8dae96434
commit c1c7846e74
8 changed files with 203 additions and 58 deletions
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47
gen/abi.cpp
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@ -14,7 +14,8 @@
#include "gen/abi-aarch64.h"
#include "gen/abi-arm.h"
#include "gen/abi-mips64.h"
#include "gen/abi-ppc64.h"
#include "gen/abi-ppc.h"
#include "gen/abi-ppc64le.h"
#include "gen/abi-win64.h"
#include "gen/abi-x86-64.h"
#include "gen/abi-x86.h"
@ -166,8 +167,8 @@ bool isNestedHFA(const TypeStruct *t, d_uns64 &floatSize, int &num,
else if (sz != floatSize) // different float size, reject
return false;
if (n > 4)
return false; // too many floats for HFA, reject
//if (n > 4)
// return false; // too many floats for HFA, reject
} else {
return false; // reject all other types
}
@ -181,29 +182,31 @@ bool isNestedHFA(const TypeStruct *t, d_uns64 &floatSize, int &num,
}
}
bool TargetABI::isHFA(TypeStruct *t, llvm::Type **rewriteType) {
bool TargetABI::isHFA(TypeStruct *t, llvm::Type **rewriteType, const int maxFloats) {
d_uns64 floatSize = 0;
int num = 0;
if (isNestedHFA(t, floatSize, num, 1)) {
if (rewriteType) {
llvm::Type *floatType = nullptr;
switch (floatSize) {
case 4:
floatType = llvm::Type::getFloatTy(gIR->context());
break;
case 8:
floatType = llvm::Type::getDoubleTy(gIR->context());
break;
case 16:
floatType = llvm::Type::getFP128Ty(gIR->context());
break;
default:
llvm_unreachable("Unexpected size for float type");
if (num <= maxFloats) {
if (rewriteType) {
llvm::Type *floatType = nullptr;
switch (floatSize) {
case 4:
floatType = llvm::Type::getFloatTy(gIR->context());
break;
case 8:
floatType = llvm::Type::getDoubleTy(gIR->context());
break;
case 16:
floatType = llvm::Type::getFP128Ty(gIR->context());
break;
default:
llvm_unreachable("Unexpected size for float type");
}
*rewriteType = LLArrayType::get(floatType, num);
}
*rewriteType = LLArrayType::get(floatType, num);
return true;
}
return true;
}
return false;
}
@ -336,9 +339,11 @@ TargetABI *TargetABI::getTarget() {
case llvm::Triple::mips64:
case llvm::Triple::mips64el:
return getMIPS64TargetABI(global.params.is64bit);
case llvm::Triple::ppc:
case llvm::Triple::ppc64:
return getPPCTargetABI(global.params.targetTriple.isArch64Bit());
case llvm::Triple::ppc64le:
return getPPC64TargetABI(global.params.targetTriple.isArch64Bit());
return getPPC64LETargetABI();
#if LDC_LLVM_VER == 305
case llvm::Triple::arm64:
case llvm::Triple::arm64_be: