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| author | Richard Henderson <rth@redhat.com> | 2003-06-07 14:30:49 -0700 |
|---|---|---|
| committer | Richard Henderson <rth@gcc.gnu.org> | 2003-06-07 14:30:49 -0700 |
| commit | 1722c2c871e9657e3d4db707816b5e6abe0ad2e8 (patch) | |
| tree | 4c3e6dfddffa34e347102a0a9603cb42a831546b /gcc/cfgrtl.c | |
| parent | 5145a02e5ddfd75dfb212e5ab165b21cec63fe18 (diff) | |
| download | gcc-1722c2c871e9657e3d4db707816b5e6abe0ad2e8.zip gcc-1722c2c871e9657e3d4db707816b5e6abe0ad2e8.tar.gz gcc-1722c2c871e9657e3d4db707816b5e6abe0ad2e8.tar.bz2 | |
basic-block.h (EDGE_SIBCALL): New.
* basic-block.h (EDGE_SIBCALL): New.
(EDGE_ALL_FLAGS): Update.
* cfg.c (dump_edge_info): Add sibcall name.
* cfgbuild.c (make_edges): Use EDGE_SIBCALL.
* cfgrtl.c (purge_dead_edges): Handle sibcalls.
From-SVN: r67602
Diffstat (limited to 'gcc/cfgrtl.c')
| -rw-r--r-- | gcc/cfgrtl.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/gcc/cfgrtl.c b/gcc/cfgrtl.c index b0678f0..21208c9 100644 --- a/gcc/cfgrtl.c +++ b/gcc/cfgrtl.c @@ -2299,6 +2299,19 @@ purge_dead_edges (bb) return purged; } + else if (GET_CODE (insn) == CALL_INSN && SIBLING_CALL_P (insn)) + { + /* First, there should not be any EH or ABCALL edges resulting + from non-local gotos and the like. If there were, we shouldn't + have created the sibcall in the first place. Second, there + should of course never have been a fallthru edge. */ + if (!bb->succ || bb->succ->succ_next) + abort (); + if (bb->succ->flags != EDGE_SIBCALL) + abort (); + + return 0; + } /* If we don't see a jump insn, we don't know exactly why the block would have been broken at this point. Look for a simple, non-fallthru edge, |