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Initialize PPC DataLayout based on the Triple only.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215281 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eric Christopher
2014-08-09 04:53:17 +00:00
parent f3157be108
commit e9da71fc86
2 changed files with 12 additions and 11 deletions
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19
lib/Target/PowerPC/PPCSubtarget.cpp
View File

@@ -33,13 +33,12 @@ using namespace llvm;
#include "PPCGenSubtargetInfo.inc" #include "PPCGenSubtargetInfo.inc"
/// Return the datalayout string of a subtarget. /// Return the datalayout string of a subtarget.
static std::string getDataLayoutString(const PPCSubtarget &ST) { static std::string getDataLayoutString(const Triple &T) {
const Triple &T = ST.getTargetTriple(); bool is64Bit = T.getArch() == Triple::ppc64 || T.getArch() == Triple::ppc64le;
std::string Ret; std::string Ret;
// Most PPC* platforms are big endian, PPC64LE is little endian. // Most PPC* platforms are big endian, PPC64LE is little endian.
if (ST.isLittleEndian()) if (T.getArch() == Triple::ppc64le)
Ret = "e"; Ret = "e";
else else
Ret = "E"; Ret = "E";
@@ -48,18 +47,18 @@ static std::string getDataLayoutString(const PPCSubtarget &ST) {
// PPC32 has 32 bit pointers. The PS3 (OS Lv2) is a PPC64 machine with 32 bit // PPC32 has 32 bit pointers. The PS3 (OS Lv2) is a PPC64 machine with 32 bit
// pointers. // pointers.
if (!ST.isPPC64() || T.getOS() == Triple::Lv2) if (!is64Bit || T.getOS() == Triple::Lv2)
Ret += "-p:32:32"; Ret += "-p:32:32";
// Note, the alignment values for f64 and i64 on ppc64 in Darwin // Note, the alignment values for f64 and i64 on ppc64 in Darwin
// documentation are wrong; these are correct (i.e. "what gcc does"). // documentation are wrong; these are correct (i.e. "what gcc does").
if (ST.isPPC64() || ST.isSVR4ABI()) if (is64Bit || !T.isOSDarwin())
Ret += "-i64:64"; Ret += "-i64:64";
else else
Ret += "-f64:32:64"; Ret += "-f64:32:64";
// PPC64 has 32 and 64 bit registers, PPC32 has only 32 bit ones. // PPC64 has 32 and 64 bit registers, PPC32 has only 32 bit ones.
if (ST.isPPC64()) if (is64Bit)
Ret += "-n32:64"; Ret += "-n32:64";
else else
Ret += "-n32"; Ret += "-n32";
@@ -78,12 +77,12 @@ PPCSubtarget::PPCSubtarget(const std::string &TT, const std::string &CPU,
const std::string &FS, PPCTargetMachine &TM, const std::string &FS, PPCTargetMachine &TM,
CodeGenOpt::Level OptLevel) CodeGenOpt::Level OptLevel)
: PPCGenSubtargetInfo(TT, CPU, FS), TargetTriple(TT), : PPCGenSubtargetInfo(TT, CPU, FS), TargetTriple(TT),
DL(getDataLayoutString(TargetTriple)),
IsPPC64(TargetTriple.getArch() == Triple::ppc64 || IsPPC64(TargetTriple.getArch() == Triple::ppc64 ||
TargetTriple.getArch() == Triple::ppc64le), TargetTriple.getArch() == Triple::ppc64le),
OptLevel(OptLevel), TargetABI(PPC_ABI_UNKNOWN), OptLevel(OptLevel), TargetABI(PPC_ABI_UNKNOWN),
FrameLowering(initializeSubtargetDependencies(CPU, FS)), FrameLowering(initializeSubtargetDependencies(CPU, FS)), InstrInfo(*this),
DL(getDataLayoutString(*this)), InstrInfo(*this), JITInfo(*this), JITInfo(*this), TLInfo(TM), TSInfo(&DL) {}
TLInfo(TM), TSInfo(&DL) {}
/// SetJITMode - This is called to inform the subtarget info that we are /// SetJITMode - This is called to inform the subtarget info that we are
/// producing code for the JIT. /// producing code for the JIT.

4
lib/Target/PowerPC/PPCSubtarget.h
View File

@@ -69,6 +69,9 @@ protected:
/// TargetTriple - What processor and OS we're targeting. /// TargetTriple - What processor and OS we're targeting.
Triple TargetTriple; Triple TargetTriple;
// Calculates type size & alignment
const DataLayout DL;
/// stackAlignment - The minimum alignment known to hold of the stack frame on /// stackAlignment - The minimum alignment known to hold of the stack frame on
/// entry to the function and which must be maintained by every function. /// entry to the function and which must be maintained by every function.
unsigned StackAlignment; unsigned StackAlignment;
@@ -120,7 +123,6 @@ protected:
} TargetABI; } TargetABI;
PPCFrameLowering FrameLowering; PPCFrameLowering FrameLowering;
const DataLayout DL;
PPCInstrInfo InstrInfo; PPCInstrInfo InstrInfo;
PPCJITInfo JITInfo; PPCJITInfo JITInfo;
PPCTargetLowering TLInfo; PPCTargetLowering TLInfo;