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| author | Marcus Shawcroft <marcus.shawcroft@arm.com> | 2013-10-17 16:31:47 +0000 |
|---|---|---|
| committer | Marcus Shawcroft <mshawcroft@gcc.gnu.org> | 2013-10-17 16:31:47 +0000 |
| commit | 51bb310d15b97ad1a2c1eedf8a6792663c493947 (patch) | |
| tree | e586501a9f265d8156532217107cc8fab6e843fc /gcc | |
| parent | a115cf9c95beafb08410196345ff4f8ea6a27c2c (diff) | |
| download | gcc-51bb310d15b97ad1a2c1eedf8a6792663c493947.zip gcc-51bb310d15b97ad1a2c1eedf8a6792663c493947.tar.gz gcc-51bb310d15b97ad1a2c1eedf8a6792663c493947.tar.bz2 | |
[AArch64] Fix preferred_reload_class for regclass STACK_REG.
From-SVN: r203778
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/aarch64/aarch64.c | 11 |
2 files changed, 15 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 5a8fb7f..5630a19 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2013-10-17 Marcus Shawcroft <marcus.shawcroft@arm.com> + + * config/aarch64/aarch64.c (aarch64_preferred_reload_class): Adjust + handling of STACK_REG. + 2013-10-17 Richard Biener <rguenther@suse.de> PR tree-optimization/58143 diff --git a/gcc/config/aarch64/aarch64.c b/gcc/config/aarch64/aarch64.c index da3962f..7fce7a0 100644 --- a/gcc/config/aarch64/aarch64.c +++ b/gcc/config/aarch64/aarch64.c @@ -4219,9 +4219,18 @@ aarch64_class_max_nregs (reg_class_t regclass, enum machine_mode mode) static reg_class_t aarch64_preferred_reload_class (rtx x, reg_class_t regclass) { - if (regclass == POINTER_REGS || regclass == STACK_REG) + if (regclass == POINTER_REGS) return GENERAL_REGS; + if (regclass == STACK_REG) + { + if (REG_P(x) + && reg_class_subset_p (REGNO_REG_CLASS (REGNO (x)), POINTER_REGS)) + return regclass; + + return NO_REGS; + } + /* If it's an integer immediate that MOVI can't handle, then FP_REGS is not an option, so we return NO_REGS instead. */ if (CONST_INT_P (x) && reg_class_subset_p (regclass, FP_REGS) |