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| author | Jakub Jelinek <jakub@redhat.com> | 2012-10-26 21:19:25 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2012-10-26 21:19:25 +0200 |
| commit | 9430b7bad813a444e6a7e35d6b5f92d2b99f40cf (patch) | |
| tree | 007004e6f0b36e0efb8b580543d475b492da6928 /gcc/tree-sra.c | |
| parent | c88538b7436c2e46f308b9b3410f04572078c2ae (diff) | |
| download | gcc-9430b7bad813a444e6a7e35d6b5f92d2b99f40cf.zip gcc-9430b7bad813a444e6a7e35d6b5f92d2b99f40cf.tar.gz gcc-9430b7bad813a444e6a7e35d6b5f92d2b99f40cf.tar.bz2 | |
re PR debug/54970 (Missing DW_OP_GNU_implicit_pointer in debuginfo)
PR debug/54970
* cfgexpand.c (expand_debug_expr): Expand &MEM_REF[&var, n]
as DEBUG_IMPLICIT_PTR + n if &var expands to DEBUG_IMPLICIT_PTR.
* tree-sra.c (create_access_replacement): Allow also MEM_REFs
with ADDR_EXPR first operand in DECL_DEBUG_EXPR expressions.
* var-tracking.c (track_expr_p): Handle MEM_REFs in DECL_DEBUG_EXPR
expressions.
* dwarf2out.c (add_var_loc_to_decl): Likewise.
PR debug/54971
* gcc.dg/guality/pr54970.c: New test.
From-SVN: r192860
Diffstat (limited to 'gcc/tree-sra.c')
| -rw-r--r-- | gcc/tree-sra.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/gcc/tree-sra.c b/gcc/tree-sra.c index 65b5ef5..bf1a0f2 100644 --- a/gcc/tree-sra.c +++ b/gcc/tree-sra.c @@ -1,7 +1,7 @@ /* Scalar Replacement of Aggregates (SRA) converts some structure references into scalar references, exposing them to the scalar optimizers. - Copyright (C) 2008, 2009, 2010, 2011 Free Software Foundation, Inc. + Copyright (C) 2008, 2009, 2010, 2011, 2012 Free Software Foundation, Inc. Contributed by Martin Jambor <mjambor@suse.cz> This file is part of GCC. @@ -1941,7 +1941,8 @@ create_access_replacement (struct access *access) and that get_ref_base_and_extent works properly on the expression. It cannot handle accesses at a non-constant offset though, so just give up in those cases. */ - for (d = debug_expr; !fail && handled_component_p (d); + for (d = debug_expr; + !fail && (handled_component_p (d) || TREE_CODE (d) == MEM_REF); d = TREE_OPERAND (d, 0)) switch (TREE_CODE (d)) { @@ -1959,6 +1960,12 @@ create_access_replacement (struct access *access) && TREE_CODE (TREE_OPERAND (d, 2)) != INTEGER_CST) fail = true; break; + case MEM_REF: + if (TREE_CODE (TREE_OPERAND (d, 0)) != ADDR_EXPR) + fail = true; + else + d = TREE_OPERAND (d, 0); + break; default: break; } |