diff options
| author | Richard Henderson <rth@redhat.com> | 2004-10-13 16:43:56 -0700 |
|---|---|---|
| committer | Richard Henderson <rth@gcc.gnu.org> | 2004-10-13 16:43:56 -0700 |
| commit | d8cb061445ce6177ca92c92efa72ed4b736e6143 (patch) | |
| tree | 6eb864280d18e81e41ea44c20c6751fdf9ea6978 /gcc | |
| parent | bf6ac87cc8d6a0c39c88dc78b2263317a6284c00 (diff) | |
| download | gcc-d8cb061445ce6177ca92c92efa72ed4b736e6143.zip gcc-d8cb061445ce6177ca92c92efa72ed4b736e6143.tar.gz gcc-d8cb061445ce6177ca92c92efa72ed4b736e6143.tar.bz2 | |
re PR debug/15860 (No DW_AT_location debug info is emitted for formal arguments to a function that uses "register" qualifiers)
PR debug/15860
* dwarf2out.c (rtl_for_decl_location): Apply big-endian correction
for DECL_INCOMING_RTL.
From-SVN: r89012
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/dwarf2out.c | 29 |
2 files changed, 27 insertions, 8 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 036c72f..cea88e1 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2004-10-13 Richard Henderson <rth@redhat.com> + + PR debug/15860 + * dwarf2out.c (rtl_for_decl_location): Apply big-endian correction + for DECL_INCOMING_RTL. + 2004-10-14 Hans-Peter Nilsson <hp@axis.com> PR target/17984 diff --git a/gcc/dwarf2out.c b/gcc/dwarf2out.c index 500ab40..75e328d 100644 --- a/gcc/dwarf2out.c +++ b/gcc/dwarf2out.c @@ -9790,19 +9790,32 @@ rtl_for_decl_location (tree decl) { if (rtl == NULL_RTX || is_pseudo_reg (rtl)) { - tree declared_type = type_main_variant (TREE_TYPE (decl)); - tree passed_type = type_main_variant (DECL_ARG_TYPE (decl)); + tree declared_type = TREE_TYPE (decl); + tree passed_type = DECL_ARG_TYPE (decl); + enum machine_mode dmode = TYPE_MODE (declared_type); + enum machine_mode pmode = TYPE_MODE (passed_type); /* This decl represents a formal parameter which was optimized out. Note that DECL_INCOMING_RTL may be NULL in here, but we handle all cases where (rtl == NULL_RTX) just below. */ - if (declared_type == passed_type) - rtl = DECL_INCOMING_RTL (decl); - else if (! BYTES_BIG_ENDIAN - && TREE_CODE (declared_type) == INTEGER_TYPE - && (GET_MODE_SIZE (TYPE_MODE (declared_type)) - <= GET_MODE_SIZE (TYPE_MODE (passed_type)))) + if (dmode == pmode) rtl = DECL_INCOMING_RTL (decl); + else if (SCALAR_INT_MODE_P (dmode) + && GET_MODE_SIZE (dmode) <= GET_MODE_SIZE (pmode)) + { + rtx inc = DECL_INCOMING_RTL (decl); + if (REG_P (inc)) + rtl = inc; + else if (MEM_P (inc)) + { + if (BYTES_BIG_ENDIAN) + rtl = adjust_address_nv (inc, dmode, + GET_MODE_SIZE (pmode) + - GET_MODE_SIZE (dmode)); + else + rtl = inc; + } + } } /* If the parm was passed in registers, but lives on the stack, then |