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| author | Richard Biener <rguenther@suse.de> | 2016-09-26 07:33:33 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2016-09-26 07:33:33 +0000 |
| commit | e6358ebda41b1adabd1037824c03c334d6395ccf (patch) | |
| tree | d4a9ade717262e003ea2e5026d262f5d369d38a9 /gcc/cgraphunit.c | |
| parent | ec0dba2b3ae4f555c3b0bf34fa4cf551b0f0e77d (diff) | |
| download | gcc-e6358ebda41b1adabd1037824c03c334d6395ccf.zip gcc-e6358ebda41b1adabd1037824c03c334d6395ccf.tar.gz gcc-e6358ebda41b1adabd1037824c03c334d6395ccf.tar.bz2 | |
re PR debug/77692 (gcc.dg/debug/dwarf2/const-2b.c FAILs)
2016-09-26 Richard Biener <rguenther@suse.de>
PR debug/77692
* cgraphunit.c (analyze_functions): Before early removing
global vars calls the late_global_decl debug handler mark
the variable as readonly.
From-SVN: r240483
Diffstat (limited to 'gcc/cgraphunit.c')
| -rw-r--r-- | gcc/cgraphunit.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/gcc/cgraphunit.c b/gcc/cgraphunit.c index 4141bad..e38f0bf 100644 --- a/gcc/cgraphunit.c +++ b/gcc/cgraphunit.c @@ -1194,8 +1194,15 @@ analyze_functions (bool first_time) at looking at optimized away DECLs, since late_global_decl will subsequently be called from the contents of the now pruned symbol table. */ - if (!decl_function_context (node->decl)) - (*debug_hooks->late_global_decl) (node->decl); + if (TREE_CODE (node->decl) == VAR_DECL + && !decl_function_context (node->decl)) + { + /* We are reclaiming totally unreachable code and variables + so they effectively appear as readonly. Show that to + the debug machinery. */ + TREE_READONLY (node->decl) = 1; + (*debug_hooks->late_global_decl) (node->decl); + } node->remove (); continue; |