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| author | Richard Henderson <rth@redhat.com> | 2001-09-19 12:29:10 -0700 |
|---|---|---|
| committer | Richard Henderson <rth@gcc.gnu.org> | 2001-09-19 12:29:10 -0700 |
| commit | 3d9339a9ca5de0b96db7c02b23b0b94656b9e1bf (patch) | |
| tree | 61b719ef5a4cd481280e9c081860e375a72534fe /gcc | |
| parent | e2c9fb9bbc6b094cd01b60c196f36d6cccc7bb89 (diff) | |
| download | gcc-3d9339a9ca5de0b96db7c02b23b0b94656b9e1bf.zip gcc-3d9339a9ca5de0b96db7c02b23b0b94656b9e1bf.tar.gz gcc-3d9339a9ca5de0b96db7c02b23b0b94656b9e1bf.tar.bz2 | |
cfg.c (force_nonfallthru_and_redirect): Handle redirecting to the exit block.
* cfg.c (force_nonfallthru_and_redirect): Handle redirecting
to the exit block.
* Makefile.in (cfg.o): Depend on TM_P_H.
From-SVN: r45696
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/Makefile.in | 2 | ||||
| -rw-r--r-- | gcc/cfg.c | 28 |
3 files changed, 29 insertions, 7 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 9c147c8..22d2074 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,11 @@ 2001-09-19 Richard Henderson <rth@redhat.com> + * cfg.c (force_nonfallthru_and_redirect): Handle redirecting + to the exit block. + * Makefile.in (cfg.o): Depend on TM_P_H. + +2001-09-19 Richard Henderson <rth@redhat.com> + * config/alpha/alpha.c (local_symbol_p): Split out from ... (local_symbolic_operand): ... here. (small_symbolic_operand): Check mode. diff --git a/gcc/Makefile.in b/gcc/Makefile.in index 8b7ceb8..57f29c5 100644 --- a/gcc/Makefile.in +++ b/gcc/Makefile.in @@ -1490,7 +1490,7 @@ flow.o : flow.c $(CONFIG_H) $(SYSTEM_H) $(RTL_H) $(TREE_H) flags.h insn-config.h function.h except.h $(EXPR_H) ssa.h $(GGC_H) $(TM_P_H) cfg.o : cfg.c $(CONFIG_H) $(SYSTEM_H) $(RTL_H) flags.h insn-config.h \ $(BASIC_BLOCK_H) $(REGS_H) hard-reg-set.h output.h toplev.h $(RECOG_H) \ - function.h except.h $(GGC_H) + function.h except.h $(GGC_H) $(TM_P_H) cfganal.o : cfganal.c $(CONFIG_H) $(SYSTEM_H) $(RTL_H) \ $(BASIC_BLOCK_H) hard-reg-set.h $(GGC_H) cfgbuild.o : cfgbuild.c $(CONFIG_H) $(SYSTEM_H) $(RTL_H) flags.h insn-config.h \ @@ -64,9 +64,16 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA #include "function.h" #include "except.h" #include "toplev.h" - +#include "tm_p.h" #include "obstack.h" + +/* Stubs in case we haven't got a return insn. */ +#ifndef HAVE_return +#define HAVE_return 0 +#define gen_return() NULL_RTX +#endif + /* The obstack on which the flow graph components are allocated. */ struct obstack flow_obstack; @@ -1249,7 +1256,6 @@ force_nonfallthru_and_redirect (e, target) basic_block jump_block, new_bb = NULL; rtx note; edge new_edge; - rtx label; if (e->flags & EDGE_ABNORMAL) abort (); @@ -1290,10 +1296,20 @@ force_nonfallthru_and_redirect (e, target) else jump_block = e->src; e->flags &= ~EDGE_FALLTHRU; - label = block_label (target); - emit_jump_insn_after (gen_jump (label), jump_block->end); - JUMP_LABEL (jump_block->end) = label; - LABEL_NUSES (label)++; + if (target == EXIT_BLOCK_PTR) + { + if (HAVE_return) + emit_jump_insn_after (gen_return (), jump_block->end); + else + abort (); + } + else + { + rtx label = block_label (target); + emit_jump_insn_after (gen_jump (label), jump_block->end); + JUMP_LABEL (jump_block->end) = label; + LABEL_NUSES (label)++; + } emit_barrier_after (jump_block->end); redirect_edge_succ_nodup (e, target); |