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| author | Joern Rennecke <joern.rennecke@embecosm.com> | 2013-07-29 22:45:38 +0000 |
|---|---|---|
| committer | Joern Rennecke <amylaar@gcc.gnu.org> | 2013-07-29 23:45:38 +0100 |
| commit | bba332115892c0ba2eb3748b9ea80c90a0e4a237 (patch) | |
| tree | 94703f6d865b5c862c8f5aea9eefd59bc4d7e5dd | |
| parent | e137912234fc9056a3898870f5e4826614df094a (diff) | |
| download | gcc-bba332115892c0ba2eb3748b9ea80c90a0e4a237.zip gcc-bba332115892c0ba2eb3748b9ea80c90a0e4a237.tar.gz gcc-bba332115892c0ba2eb3748b9ea80c90a0e4a237.tar.bz2 | |
re PR rtl-optimization/58021 (MODE_EXIT switches at NOTE_INSN_DELETED)
PR rtl-optimization/58021
* mode-switching.c (create_pre_exit): Always split off preceding
insns if we are not at the basic block head.
From-SVN: r201321
| -rw-r--r-- | gcc/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/mode-switching.c | 7 |
2 files changed, 7 insertions, 4 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 6d1fec8..2d01701 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -6,6 +6,10 @@ * predicates.md (float_operation): Allow patterns with three basic sub-patterns. + PR rtl-optimization/58021 + * mode-switching.c (create_pre_exit): Always split off preceding + insns if we are not at the basic block head. + 2013-07-29 Maciej W. Rozycki <macro@codesourcery.com> * config/mips/linux.h (GLIBC_DYNAMIC_LINKER): Handle `-mnan=2008'. diff --git a/gcc/mode-switching.c b/gcc/mode-switching.c index 8ea8ca3..0d112b1 100644 --- a/gcc/mode-switching.c +++ b/gcc/mode-switching.c @@ -420,7 +420,7 @@ create_pre_exit (int n_entities, int *entity_map, const int *num_modes) || (GET_MODE_CLASS (GET_MODE (ret_reg)) != MODE_INT && nregs != 1)); - if (INSN_P (last_insn)) + if (!NOTE_INSN_BASIC_BLOCK_P (last_insn)) { before_return_copy = emit_note_before (NOTE_INSN_DELETED, last_insn); @@ -428,9 +428,8 @@ create_pre_exit (int n_entities, int *entity_map, const int *num_modes) require a different mode than MODE_EXIT, so if we might have such instructions, keep them in a separate block from pre_exit. */ - if (last_insn != BB_HEAD (src_bb)) - src_bb = split_block (src_bb, - PREV_INSN (before_return_copy))->dest; + src_bb = split_block (src_bb, + PREV_INSN (before_return_copy))->dest; } else before_return_copy = last_insn; |