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| author | Teresa Johnson <tejohnson@google.com> | 2013-08-20 13:29:53 +0000 |
|---|---|---|
| committer | Teresa Johnson <tejohnson@gcc.gnu.org> | 2013-08-20 13:29:53 +0000 |
| commit | 67598720afc44795500b02e86dfcdd982b9669d4 (patch) | |
| tree | d7ed91c64916897863742efb289c1ae31a67af93 /gcc/final.c | |
| parent | c5918c2199ee193f86cfafb9ad9fb040d7a60a14 (diff) | |
| download | gcc-67598720afc44795500b02e86dfcdd982b9669d4.zip gcc-67598720afc44795500b02e86dfcdd982b9669d4.tar.gz gcc-67598720afc44795500b02e86dfcdd982b9669d4.tar.bz2 | |
re PR rtl-optimization/57451 (Incorrect debug ranges emitted for -freorder-blocks-and-partition -g)
2013-08-20 Teresa Johnson <tejohnson@google.com>
PR rtl-optimizations/57451
* final.c (reemit_insn_block_notes): Prevent lexical blocks
from crossing split section boundaries.
* testsuite/g++.dg/tree-prof/pr57451.C: New test.
From-SVN: r201883
Diffstat (limited to 'gcc/final.c')
| -rw-r--r-- | gcc/final.c | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/gcc/final.c b/gcc/final.c index 31ced4f..4eaae0f 100644 --- a/gcc/final.c +++ b/gcc/final.c @@ -1650,12 +1650,26 @@ reemit_insn_block_notes (void) rtx insn, note; insn = get_insns (); - if (!active_insn_p (insn)) - insn = next_active_insn (insn); - for (; insn; insn = next_active_insn (insn)) + for (; insn; insn = next_insn (insn)) { tree this_block; + /* Prevent lexical blocks from straddling section boundaries. */ + if (NOTE_P (insn) && NOTE_KIND (insn) == NOTE_INSN_SWITCH_TEXT_SECTIONS) + { + for (tree s = cur_block; s != DECL_INITIAL (cfun->decl); + s = BLOCK_SUPERCONTEXT (s)) + { + rtx note = emit_note_before (NOTE_INSN_BLOCK_END, insn); + NOTE_BLOCK (note) = s; + note = emit_note_after (NOTE_INSN_BLOCK_BEG, insn); + NOTE_BLOCK (note) = s; + } + } + + if (!active_insn_p (insn)) + continue; + /* Avoid putting scope notes between jump table and its label. */ if (JUMP_TABLE_DATA_P (insn)) continue; |