diff options
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/arm/arm.h | 7 |
2 files changed, 12 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 879ebbd..8f4d599 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2002-02-20 Philip Blundell <philb@gnu.org> + + PR 5705 + * config/arm/arm.h (HARD_REGNO_RENAME_OK): New macro. + 2002-02-20 Richard Henderson <rth@redhat.com> PR c/5615 diff --git a/gcc/config/arm/arm.h b/gcc/config/arm/arm.h index c68c867..bf989f4 100644 --- a/gcc/config/arm/arm.h +++ b/gcc/config/arm/arm.h @@ -1027,6 +1027,13 @@ extern const char * structure_size_string; 16, 17, 18, 19, 20, 21, 22, 23, \ 24, 25, 26 \ } + +/* Interrupt functions can only use registers that have already been + saved by the prologue, even if they would normally be + call-clobbered. */ +#define HARD_REGNO_RENAME_OK(SRC, DST) \ + (! IS_INTERRUPT (cfun->machine->func_type) || \ + regs_ever_live[DST]) /* Register and constant classes. */ |