diff options
| author | yufeng <yufeng@138bc75d-0d04-0410-961f-82ee72b054a4> | 2013-07-23 12:33:14 +0000 |
|---|---|---|
| committer | yufeng <yufeng@138bc75d-0d04-0410-961f-82ee72b054a4> | 2013-07-23 12:33:14 +0000 |
| commit | ec8b87268ff5a4209bd4a7d37afbddbabb382e74 (patch) | |
| tree | 064017f8dad846a7cd9b78b309f4e3a47ce22c3b /gcc | |
| parent | b54ba0cbc4849d8dd28ebb99616e327887182f3d (diff) | |
| download | gcc-ec8b87268ff5a4209bd4a7d37afbddbabb382e74.tar.gz | |
[AArch64, ILP32] 6/6 Add support for "wsp" register.
gcc/
* config/aarch64/aarch64.c (aarch64_hard_regno_mode_ok): Also return
true for SP_REGNUM if mode == ptr_mode.
* config/aarch64/aarch64.h (ADDITIONAL_REGISTER_NAMES): Add "wsp"
with value R0_REGNUM + 31.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@201170 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/config/aarch64/aarch64.c | 9 | ||||
| -rw-r--r-- | gcc/config/aarch64/aarch64.h | 2 |
3 files changed, 15 insertions, 3 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index df9bb9454dd..db2fb7cabea 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,12 @@ 2013-07-23 Yufeng Zhang <yufeng.zhang@arm.com> + * config/aarch64/aarch64.c (aarch64_hard_regno_mode_ok): Also return + true for SP_REGNUM if mode == ptr_mode. + * config/aarch64/aarch64.h (ADDITIONAL_REGISTER_NAMES): Add "wsp" + with value R0_REGNUM + 31. + +2013-07-23 Yufeng Zhang <yufeng.zhang@arm.com> + * config/aarch64/aarch64.c (aarch64_pad_arg_upward): In big-endian, pad pointer-typed argument downward. diff --git a/gcc/config/aarch64/aarch64.c b/gcc/config/aarch64/aarch64.c index 73e8657b828..aed035a434e 100644 --- a/gcc/config/aarch64/aarch64.c +++ b/gcc/config/aarch64/aarch64.c @@ -382,8 +382,13 @@ aarch64_hard_regno_mode_ok (unsigned regno, enum machine_mode mode) if (GET_MODE_CLASS (mode) == MODE_CC) return regno == CC_REGNUM; - if (regno == SP_REGNUM || regno == FRAME_POINTER_REGNUM - || regno == ARG_POINTER_REGNUM) + if (regno == SP_REGNUM) + /* The purpose of comparing with ptr_mode is to support the + global register variable associated with the stack pointer + register via the syntax of asm ("wsp") in ILP32. */ + return mode == Pmode || mode == ptr_mode; + + if (regno == FRAME_POINTER_REGNUM || regno == ARG_POINTER_REGNUM) return mode == Pmode; if (GP_REGNUM_P (regno) && ! aarch64_vect_struct_mode_p (mode)) diff --git a/gcc/config/aarch64/aarch64.h b/gcc/config/aarch64/aarch64.h index e1fa4134e3e..092426973c6 100644 --- a/gcc/config/aarch64/aarch64.h +++ b/gcc/config/aarch64/aarch64.h @@ -278,7 +278,7 @@ extern unsigned long aarch64_tune_flags; R_ALIASES(16), R_ALIASES(17), R_ALIASES(18), R_ALIASES(19), \ R_ALIASES(20), R_ALIASES(21), R_ALIASES(22), R_ALIASES(23), \ R_ALIASES(24), R_ALIASES(25), R_ALIASES(26), R_ALIASES(27), \ - R_ALIASES(28), R_ALIASES(29), R_ALIASES(30), /* 31 omitted */ \ + R_ALIASES(28), R_ALIASES(29), R_ALIASES(30), {"wsp", R0_REGNUM + 31}, \ V_ALIASES(0), V_ALIASES(1), V_ALIASES(2), V_ALIASES(3), \ V_ALIASES(4), V_ALIASES(5), V_ALIASES(6), V_ALIASES(7), \ V_ALIASES(8), V_ALIASES(9), V_ALIASES(10), V_ALIASES(11), \ |