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| author | dje <dje@138bc75d-0d04-0410-961f-82ee72b054a4> | 1993-09-24 19:49:18 +0000 |
|---|---|---|
| committer | dje <dje@138bc75d-0d04-0410-961f-82ee72b054a4> | 1993-09-24 19:49:18 +0000 |
| commit | 4c956bf6c197ec767d01e85c096e17df41bd5899 (patch) | |
| tree | 3346de9647b6304a4f481f16f26e18600b133ba7 /gcc/local-alloc.c | |
| parent | c7cac72efe944603ae61ac2c65e5a0e310bfbe5a (diff) | |
| download | gcc-4c956bf6c197ec767d01e85c096e17df41bd5899.tar.gz | |
* local-alloc.c: (find_free_reg): Make sure we will always be able
to eliminate FRAME_POINTER_REGNUM into HARD_FRAME_POINTER_REGNUM.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@5460 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/local-alloc.c')
| -rw-r--r-- | gcc/local-alloc.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/gcc/local-alloc.c b/gcc/local-alloc.c index 00c06e804ad..d626fd7d004 100644 --- a/gcc/local-alloc.c +++ b/gcc/local-alloc.c @@ -1945,6 +1945,11 @@ find_free_reg (class, mode, qty, accept_call_clobbered, just_try_suggested, #ifdef ELIMINABLE_REGS for (i = 0; i < sizeof eliminables / sizeof eliminables[0]; i++) SET_HARD_REG_BIT (used, eliminables[i].from); +#if FRAME_POINTER_REGNUM != HARD_FRAME_POINTER_REGNUM + /* If FRAME_POINTER_REGNUM is not a real register, then protect the one + that it might be eliminated into. */ + SET_HARD_REG_BIT (used, HARD_FRAME_POINTER_REGNUM); +#endif #else SET_HARD_REG_BIT (used, FRAME_POINTER_REGNUM); #endif |