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authorjakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4>2011-11-05 19:58:37 +0000
committerjakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4>2011-11-05 19:58:37 +0000
commit63f5ad449bbe0a4d478ae9412461e204533a6206 (patch)
tree7b028a77e2bfe16e21bef7282ea5fce54ee5d004 /gcc/insn-notes.def
parent5cebcec734bb0881877f4ad700e4a219f6bfc063 (diff)
downloadgcc-63f5ad449bbe0a4d478ae9412461e204533a6206.tar.gz
PR tree-optimization/50693
* tree-cfg.c (gimple_can_merge_blocks_p): Allow merging with non-forced user labels. (gimple_merge_blocks): Turn non-forced user labels into debug bind stmt with the label as first operand and reset value. (gimple_duplicate_bb): Don't duplicate label debug stmts. * dwarf2out.c (gen_label_die): Handle NOTE_INSN_DELETED_DEBUG_LABEL. * final.c (final_scan_insn): Likewise. (rest_of_clean_state): Don't dump NOTE_INSN_DELETED_DEBUG_LABEL. * var-tracking.c (debug_label_num): New variable. (delete_debug_insns): Don't delete DEBUG_INSNs for LABEL_DECLs, instead turn them into NOTE_INSN_DELETED_DEBUG_LABEL notes. * cfglayout.c (skip_insns_after_block, duplicate_insn_chain): Handle NOTE_INSN_DELETED_DEBUG_LABEL. (duplicate_insn_chain): Don't duplicate LABEL_DECL DEBUG_INSNs. * insn-notes.def (DELETED_DEBUG_LABEL): New note kind. * print-rtl.c (print_rtx): Handle NOTE_INSN_DELETED_DEBUG_LABEL. * gengtype.c (adjust_field_rtx_def): Likewise. * config/i386/i386.c (ix86_output_function_epilogue): For MachO clear CODE_LABEL_NUMBER of NOTE_INSN_DELETED_DEBUG_LABEL if their are at the end of function and nop hasn't been emitted. * config/rs6000/rs6000.c (rs6000_output_function_epilogue): Likewise. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@181014 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/insn-notes.def')
-rw-r--r--gcc/insn-notes.def4
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/insn-notes.def b/gcc/insn-notes.def
index 2ea673f05e6..c1d621a1d16 100644
--- a/gcc/insn-notes.def
+++ b/gcc/insn-notes.def
@@ -36,6 +36,10 @@ INSN_NOTE (DELETED)
/* Generated in place of user-declared labels when they are deleted. */
INSN_NOTE (DELETED_LABEL)
+/* Similarly, but for labels that have been present in debug stmts
+ earlier and thus will only appear with -g. These must use different
+ label namespace. */
+INSN_NOTE (DELETED_DEBUG_LABEL)
/* These are used to mark the beginning and end of a lexical block.
See NOTE_BLOCK and reorder_blocks. */