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| author | Richard Kenner <kenner@gcc.gnu.org> | 1994-10-07 16:13:58 -0400 |
|---|---|---|
| committer | Richard Kenner <kenner@gcc.gnu.org> | 1994-10-07 16:13:58 -0400 |
| commit | e19571dbde916e6b64ffe8baa9e94e64ebd15f83 (patch) | |
| tree | af909c2bc37d7f4ff84a11601f5638390bf16e6e /gcc | |
| parent | 3d771dfd7ae13f303ed9fe346df8364adb2c702d (diff) | |
| download | gcc-e19571dbde916e6b64ffe8baa9e94e64ebd15f83.zip gcc-e19571dbde916e6b64ffe8baa9e94e64ebd15f83.tar.gz gcc-e19571dbde916e6b64ffe8baa9e94e64ebd15f83.tar.bz2 | |
(preserve_temp_slots): If X cannot be a temp slot, preserve all things
whose address was taken at the present level.
From-SVN: r8238
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/function.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/gcc/function.c b/gcc/function.c index 00801cd..b0d76ec 100644 --- a/gcc/function.c +++ b/gcc/function.c @@ -1040,12 +1040,19 @@ preserve_temp_slots (x) p = find_temp_slot_from_address (x); /* If X is not in memory or is at a constant address, it cannot be in - a temporary slot. */ + a temporary slot, but it can contain something whose address was + taken. */ if (p == 0 && (GET_CODE (x) != MEM || CONSTANT_P (XEXP (x, 0)))) - return; + { + for (p = temp_slots; p; p = p->next) + if (p->in_use && p->level == temp_slot_level && p->addr_taken) + p->level--; + + return; + } /* First see if we can find a match. */ - if (p== 0) + if ( p== 0) p = find_temp_slot_from_address (XEXP (x, 0)); if (p != 0) |