Author: hans
Date: Tue Aug 25 11:25:46 2015
New Revision: 245948
URL: http://llvm.org/viewvc/llvm-project?rev=245948&view=rev
Log:
Deprecate the DataLayout on the TargetMachine, and backport the 3.8 API to ease
transition
By Mehdi Amini.
Modified:
llvm/branches/release_37/docs/ReleaseNotes.rst
llvm/branches/release_37/include/llvm-c/TargetMachine.h
llvm/branches/release_37/include/llvm/Target/TargetMachine.h
Modified: llvm/branches/release_37/docs/ReleaseNotes.rst
URL:
http://llvm.org/viewvc/llvm-project/llvm/branches/release_37/docs/ReleaseNotes.rst?rev=245948&r1=245947&r2=245948&view=diff
==============================================================================
--- llvm/branches/release_37/docs/ReleaseNotes.rst (original)
+++ llvm/branches/release_37/docs/ReleaseNotes.rst Tue Aug 25 11:25:46 2015
@@ -53,6 +53,14 @@ Non-comprehensive list of changes in thi
a pointer to make it explicit. The Module owns the datalayout and it has to
match the one attached to the TargetMachine for generating code.
+ In 3.6, a pass was inserted in the pipeline to make the DataLayout
accessible:
+ MyPassManager->add(new DataLayoutPass(MyTargetMachine->getDataLayout()));
+ In 3.7, you don't need a pass, you set the DataLayout on the Module:
+ MyModule->setDataLayout(MyTargetMachine->createDataLayout());
+
+ The LLVM C API `LLVMGetTargetMachineData` is deprecated to reflect the fact
+ that it won't be available anymore from TargetMachine in 3.8.
+
* Comdats are now ortogonal to the linkage. LLVM will not create
comdats for weak linkage globals and the frontends are responsible
for explicitly adding them.
Modified: llvm/branches/release_37/include/llvm-c/TargetMachine.h
URL:
http://llvm.org/viewvc/llvm-project/llvm/branches/release_37/include/llvm-c/TargetMachine.h?rev=245948&r1=245947&r2=245948&view=diff
==============================================================================
--- llvm/branches/release_37/include/llvm-c/TargetMachine.h (original)
+++ llvm/branches/release_37/include/llvm-c/TargetMachine.h Tue Aug 25 11:25:46
2015
@@ -115,7 +115,7 @@ char *LLVMGetTargetMachineCPU(LLVMTarget
LLVMDisposeMessage. */
char *LLVMGetTargetMachineFeatureString(LLVMTargetMachineRef T);
-/** Returns the llvm::DataLayout used for this llvm:TargetMachine. */
+/** Deprecated: use LLVMGetDataLayout(LLVMModuleRef M) instead. */
LLVMTargetDataRef LLVMGetTargetMachineData(LLVMTargetMachineRef T);
/** Set the target machine's ASM verbosity. */
Modified: llvm/branches/release_37/include/llvm/Target/TargetMachine.h
URL:
http://llvm.org/viewvc/llvm-project/llvm/branches/release_37/include/llvm/Target/TargetMachine.h?rev=245948&r1=245947&r2=245948&view=diff
==============================================================================
--- llvm/branches/release_37/include/llvm/Target/TargetMachine.h (original)
+++ llvm/branches/release_37/include/llvm/Target/TargetMachine.h Tue Aug 25
11:25:46 2015
@@ -125,10 +125,15 @@ public:
return *static_cast<const STC*>(getSubtargetImpl(F));
}
+ /// Deprecated in 3.7, will be removed in 3.8. Use createDataLayout()
instead.
+ ///
/// This method returns a pointer to the DataLayout for the target. It should
/// be unchanging for every subtarget.
const DataLayout *getDataLayout() const { return &DL; }
+ /// Create a DataLayout.
+ const DataLayout createDataLayout() const { return DL; }
+
/// \brief Reset the target options based on the function's attributes.
// FIXME: Remove TargetOptions that affect per-function code generation
// from TargetMachine.
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