Bill Schmidt d7802bf0dd This patch introduces initial-exec model support for thread-local storage ... on 64-bit PowerPC ELF. The patch includes code to handle external assembly and MC output with the integrated assembler. It intentionally does not support the "old" JIT. For the initial-exec TLS model, the ABI requires the following to calculate the address of external thread-local variable x: Code sequence Relocation Symbol ld 9,x@got@tprel(2) R_PPC64_GOT_TPREL16_DS x add 9,9,x@tls R_PPC64_TLS x The register 9 is arbitrary here. The linker will replace x@got@tprel with the offset relative to the thread pointer to the generated GOT entry for symbol x. It will replace x@tls with the thread-pointer register (13). The two test cases verify correct assembly output and relocation output as just described. PowerPC-specific selection node variants are added for the two instructions above: LD_GOT_TPREL and ADD_TLS. These are inserted when an initial-exec global variable is encountered by PPCTargetLowering::LowerGlobalTLSAddress(), and later lowered to machine instructions LDgotTPREL and ADD8TLS. LDgotTPREL is a pseudo that uses the same LDrs support added for medium code model's LDtocL, with a different relocation type. The rest of the processing is straightforward. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169281 91177308-0d34-0410-b5e6-96231b3b80d8		2012-12-04 16:18:08 +00:00
..
CMakeLists.txt	Fix cmake.	2011-12-22 02:06:17 +00:00
LLVMBuild.txt	LLVMBuild: Remove trailing newline, which irked me.	2011-12-12 19:48:00 +00:00
Makefile
PPCAsmBackend.cpp	This patch introduces initial-exec model support for thread-local storage	2012-12-04 16:18:08 +00:00
PPCBaseInfo.h	Emacs-tag and some comment fix for all ARM, CellSPU, Hexagon, MBlaze, MSP430, PPC, PTX, Sparc, X86, XCore.	2012-02-18 12:03:15 +00:00
PPCELFObjectWriter.cpp	This patch introduces initial-exec model support for thread-local storage	2012-12-04 16:18:08 +00:00
PPCFixupKinds.h	This patch introduces initial-exec model support for thread-local storage	2012-12-04 16:18:08 +00:00
PPCMCAsmInfo.cpp	Enable exceptions handling on PPC64 now that cr misaligned spilling	2012-09-12 15:29:32 +00:00
PPCMCAsmInfo.h	Emacs-tag and some comment fix for all ARM, CellSPU, Hexagon, MBlaze, MSP430, PPC, PTX, Sparc, X86, XCore.	2012-02-18 12:03:15 +00:00
PPCMCCodeEmitter.cpp	This patch introduces initial-exec model support for thread-local storage	2012-12-04 16:18:08 +00:00
PPCMCTargetDesc.cpp	Use the new script to sort the includes of every file under lib.	2012-12-03 16:50:05 +00:00
PPCMCTargetDesc.h	When creating MCAsmBackend pass the CPU string as well. In X86AsmBackend	2012-09-18 16:08:49 +00:00
PPCPredicates.cpp
PPCPredicates.h