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| -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 5a8fb7f2242..5630a191d4f 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 da3962f354b..7fce7a05065 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) |