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| author | Mark Mitchell <mark@codesourcery.com> | 1999-09-24 01:14:54 +0000 |
|---|---|---|
| committer | Mark Mitchell <mmitchel@gcc.gnu.org> | 1999-09-24 01:14:54 +0000 |
| commit | a571f7a00e33edb193e1a74869dab3f0576eb87c (patch) | |
| tree | 393df4ea10315f15ce843bb2005c46512faa3f69 | |
| parent | 541b0512b1977c888dc08b99076cee97997c950d (diff) | |
| download | gcc-a571f7a00e33edb193e1a74869dab3f0576eb87c.zip gcc-a571f7a00e33edb193e1a74869dab3f0576eb87c.tar.gz gcc-a571f7a00e33edb193e1a74869dab3f0576eb87c.tar.bz2 | |
stmt.c (expand_start_bindings): Don't allow cleanup isntructions to disappear.
* stmt.c (expand_start_bindings): Don't allow cleanup isntructions
to disappear.
From-SVN: r29644
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/stmt.c | 7 |
2 files changed, 12 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index f2002c1..c10d22a 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +Thu Sep 23 18:18:55 1999 Mark Mitchell <mark@codesourcery.com> + + * stmt.c (expand_start_bindings): Don't allow cleanup isntructions + to disappear. + Thu Sep 23 18:07:01 1999 Mark Mitchell <mark@codesourcery.com> * optabs.c (init_traps): Register trap_rtx as a GC root. @@ -3230,6 +3230,13 @@ expand_start_bindings (flags) thisblock->data.block.conditional_code = 0; thisblock->data.block.last_unconditional_cleanup = note; + /* When we insert instructions after the last unconditional cleanup, + we don't adjust last_insn. That means that a later add_insn will + clobber the instructions we've just added. The easiest way to + fix this is to just insert another instruction here, so that the + instructions inserted after the last unconditional cleanup are + never the last instruction. */ + emit_note (NULL_PTR, NOTE_INSN_DELETED); thisblock->data.block.cleanup_ptr = &thisblock->data.block.cleanups; if (block_stack |