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| author | Doug Evans <dje@gnu.org> | 1993-09-24 19:54:09 +0000 |
|---|---|---|
| committer | Doug Evans <dje@gnu.org> | 1993-09-24 19:54:09 +0000 |
| commit | b3b6c9b3f3dab2f1ae27beeb9ebe5b732411c695 (patch) | |
| tree | 89b9f096511906dc07d728540ee7a59a37f47d53 /gcc | |
| parent | b07ff75d63e1bfb4560d2843554629c2eaf6ae19 (diff) | |
| download | gcc-b3b6c9b3f3dab2f1ae27beeb9ebe5b732411c695.zip gcc-b3b6c9b3f3dab2f1ae27beeb9ebe5b732411c695.tar.gz gcc-b3b6c9b3f3dab2f1ae27beeb9ebe5b732411c695.tar.bz2 | |
rtlanal.c: (rtx_unstable_p): HARD_FRAME_POINTER_REGNUM is not an unstable register.
* rtlanal.c: (rtx_unstable_p): HARD_FRAME_POINTER_REGNUM is not
an unstable register.
(rtx_varies_p, case REG): hard_frame_pointer_rtx is invariant.
(rtx_addr_can_trap_p, case REG): hard_frame_pointer_rtx won't trap.
From-SVN: r5465
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/rtlanal.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/gcc/rtlanal.c b/gcc/rtlanal.c index 82ac3af..2ef3d43 100644 --- a/gcc/rtlanal.c +++ b/gcc/rtlanal.c @@ -54,6 +54,7 @@ rtx_unstable_p (x) if (code == REG) return ! (REGNO (x) == FRAME_POINTER_REGNUM + || REGNO (x) == HARD_FRAME_POINTER_REGNUM || REGNO (x) == ARG_POINTER_REGNUM || RTX_UNCHANGING_P (x)); @@ -96,7 +97,8 @@ rtx_varies_p (x) and arg pointers and not just the register number in case we have eliminated the frame and/or arg pointer and are using it for pseudos. */ - return ! (x == frame_pointer_rtx || x == arg_pointer_rtx); + return ! (x == frame_pointer_rtx || x == hard_frame_pointer_rtx + || x == arg_pointer_rtx); case LO_SUM: /* The operand 0 of a LO_SUM is considered constant @@ -132,8 +134,8 @@ rtx_addr_can_trap_p (x) case REG: /* As in rtx_varies_p, we have to use the actual rtx, not reg number. */ - return ! (x == frame_pointer_rtx || x == stack_pointer_rtx - || x == arg_pointer_rtx); + return ! (x == frame_pointer_rtx || x == hard_frame_pointer_rtx + || x == stack_pointer_rtx || x == arg_pointer_rtx); case CONST: return rtx_addr_can_trap_p (XEXP (x, 0)); |