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| author | Jakub Jelinek <jakub@redhat.com> | 2011-03-16 09:35:31 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2011-03-16 09:35:31 +0100 |
| commit | a58a8e4b1f724fdb5edfd09660963404439428f7 (patch) | |
| tree | e1c308ef8c1fe2a484b5a77d166cb4b3682c3f18 /gcc/rtl.def | |
| parent | 2b1c543325692d744eec22f779656e13605c3ceb (diff) | |
| download | gcc-a58a8e4b1f724fdb5edfd09660963404439428f7.tar.gz | |
re PR debug/45882 (No debug info for vars depending on unused parameter)
PR debug/45882
* rtl.def (ENTRY_VALUE): Change format from "e" to "0".
* rtl.h (ENTRY_VALUE_EXP): Define.
* rtl.c (rtx_equal_p_cb, rtx_equal_p): Handle ENTRY_VALUE.
* cselib.c (rtx_equal_for_cselib_p, cselib_hash_rtx): Likewise.
* print-rtl.c (print_rtx): Likewise.
* gengtype.c (adjust_field_rtx_def): Likewise.
* var-tracking.c (vt_add_function_parameter): Adjust
gen_rtx_ENTRY_VALUE uses, use ENTRY_VALUE_EXP macro.
* dwarf2out.c (mem_loc_descriptor): Use ENTRY_VALUE_EXP macro.
* cfgexpand.c (expand_debug_expr): If a SSA_NAME without
partition is a default definition of a PARM_DECL, use ENTRY_VALUE
of its DECL_INCOMING_RTL if possible, or its DECL_RTL if set.
* gcc.dg/guality/pr45882.c: New test.
From-SVN: r171035
Diffstat (limited to 'gcc/rtl.def')
| -rw-r--r-- | gcc/rtl.def | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/gcc/rtl.def b/gcc/rtl.def index 885cbcf3ce8..cb5555ac591 100644 --- a/gcc/rtl.def +++ b/gcc/rtl.def @@ -718,9 +718,10 @@ DEF_RTL_EXPR(VAR_LOCATION, "var_location", "tei", RTX_EXTRA) addressable. */ DEF_RTL_EXPR(DEBUG_IMPLICIT_PTR, "debug_implicit_ptr", "t", RTX_OBJ) -/* Represents value that argument had on function entry. Should - be only used in VAR_LOCATION location expression. */ -DEF_RTL_EXPR(ENTRY_VALUE, "entry_value", "e", RTX_OBJ) +/* Represents value that argument had on function entry. The + single argument is the DECL_INCOMING_RTL of the corresponding + parameter. */ +DEF_RTL_EXPR(ENTRY_VALUE, "entry_value", "0", RTX_OBJ) /* All expressions from this point forward appear only in machine descriptions. */ |