[llvm-commits] [PATCH] Add support for ARMFastISel to emit ELF PIC

[Chad Rosier]

LGTM.

On Sep 26, 2012, at 4:59 AM, Jush Lu <jush.msn at gmail.com> wrote:

> Ping.
> 
> The same patch is attached.
> 
> On Tue, Sep 18, 2012 at 7:18 PM, Jush Lu <jush.msn at gmail.com> wrote:
> Ping.
> 
> The attachment is the same patch.
> 
> 
> On Tue, Sep 4, 2012 at 7:14 PM, Jush Lu <jush.msn at gmail.com> wrote:
> Hi, 
> 
> This patch adds support for ELF PIC. I know that ARMFastISel hasn’t been used for ELF object files, but I think this patch will be helpful to ELF support.
> 
> This patch uses the same way which X86FastISel uses for ELF PIC codegen, you can find the similar code in the “CGBR” pass which is in lib/Target/X86/X86InstrInfo.cpp .
> 
> The “ARMCGBR”  pass in my patch lowers the value of  a ELF specific symbol “_GLOBAL_OFFSET_TABLE_” into a global base register , and this global base register is used by ARMFastISel for ELF PIC codegen.
> 
> Please review it ,thanks.
> 
> Jush
> 
> 
> <fast-isel-elf-pic.patch>

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