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Move the DataLayout to the generic TargetMachine, making it mandatory.

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Summary:
I don't know why every singled backend had to redeclare its own DataLayout.
There was a virtual getDataLayout() on the common base TargetMachine, the
default implementation returned nullptr. It was not clear from this that
we could assume at call site that a DataLayout will be available with
each Target.

Now getDataLayout() is no longer virtual and return a pointer to the
DataLayout member of the common base TargetMachine. I plan to turn it into
a reference in a future patch.

The only backend that didn't have a DataLayout previsouly was the CPPBackend.
It now initializes the default DataLayout. This commit is NFC for all the
other backends.

Test Plan: clang+llvm ninja check-all

Reviewers: echristo

Subscribers: jfb, jholewinski, llvm-commits

Differential Revision: http://reviews.llvm.org/D8243

From: Mehdi Amini <mehdi.amini@apple.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231987 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Mehdi Amini
2015-03-12 00:07:24 +00:00
parent d24c2c8cdf
commit ceb9150268
30 changed files with 93 additions and 105 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
lib/Target/Sparc/SparcTargetMachine.cpp
View File

@ -56,12 +56,11 @@ SparcTargetMachine::SparcTargetMachine(const Target &T, StringRef TT,
StringRef CPU, StringRef FS,
const TargetOptions &Options,
Reloc::Model RM, CodeModel::Model CM,
CodeGenOpt::Level OL,
bool is64bit)
: LLVMTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL),
TLOF(make_unique<SparcELFTargetObjectFile>()),
DL(computeDataLayout(is64bit)),
Subtarget(TT, CPU, FS, *this, is64bit) {
CodeGenOpt::Level OL, bool is64bit)
: LLVMTargetMachine(T, computeDataLayout(is64bit), TT, CPU, FS, Options, RM,
CM, OL),
TLOF(make_unique<SparcELFTargetObjectFile>()),
Subtarget(TT, CPU, FS, *this, is64bit) {
initAsmInfo();
}