This is the mail archive of the gcc-patches@gcc.gnu.org mailing list for the GCC project.
Index Nav: | [Date Index] [Subject Index] [Author Index] [Thread Index] | |
---|---|---|
Message Nav: | [Date Prev] [Date Next] | [Thread Prev] [Thread Next] |
Other format: | [Raw text] |
This patch adds support for the powerpc ISA 2.06 instruction set which includes support for the new VSX instruction set, and scheduling information for the power7 processor. It also adds support to vectorize some of the math builtin functions. This contains everything on the power7-meissner branch as of July 23rd, except for the hack that I had put in to disable using branch on count instructions in functions that have a switch statement or indirect jump, which papered over a bug where the compiler tried to swap a floating point register to the LR register in one of the spec 2006 benchmarks. I also didn't put in the changes to make -mspe and -mpaired back to being target bitmask options, which elimianates a long standing hack in the compiler (basically we ran out of bits for target options, so spe/paired became separate variables, which was awkward for builtin functions). I will submit this as a separate patch after I've tested it further. One unresolved thing is how the compiler should mark the VSX registers in the debug output. Do we need to use a separate register number for VSX registers, or do we reuse the existing FPR and Altivec register numbers (which is what the code currently does). When I submitted the bswap changes, I had forgotten to submit several of the tests, and those are submitted here. In addition to make check, I just built spec 2006, and all 29 benchmarks build and validate (18 of the 29 benchmarks generate vector double instructions). Are these patches ok to commit? -- Michael Meissner, IBM 4 Technology Place Drive, MS 2203A, Westford, MA, 01886, USA meissner@linux.vnet.ibm.com
Attachment:
gcc-power7-mainline.patch10-04
Description: Text document
Index Nav: | [Date Index] [Subject Index] [Author Index] [Thread Index] | |
---|---|---|
Message Nav: | [Date Prev] [Date Next] | [Thread Prev] [Thread Next] |