Module Name: src
Committed By: joerg
Date: Tue Mar 18 23:43:41 UTC 2014
Modified Files:
src/gnu/dist/gcc4/gcc/config/vax: vax.c vax.h vax.md
Log Message:
Add a register definition for the Processor Status Word on VAX.
Change the unwind definition to specify the CFA base via %fp before
using it in the various register locations.
To generate a diff of this commit:
cvs rdiff -u -r1.19 -r1.20 src/gnu/dist/gcc4/gcc/config/vax/vax.c
cvs rdiff -u -r1.5 -r1.6 src/gnu/dist/gcc4/gcc/config/vax/vax.h
cvs rdiff -u -r1.17 -r1.18 src/gnu/dist/gcc4/gcc/config/vax/vax.md
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/gnu/dist/gcc4/gcc/config/vax/vax.c
diff -u src/gnu/dist/gcc4/gcc/config/vax/vax.c:1.19 src/gnu/dist/gcc4/gcc/config/vax/vax.c:1.20
--- src/gnu/dist/gcc4/gcc/config/vax/vax.c:1.19 Mon Apr 8 12:10:53 2013
+++ src/gnu/dist/gcc4/gcc/config/vax/vax.c Tue Mar 18 23:43:40 2014
@@ -124,16 +124,22 @@ vax_output_function_prologue (FILE * fil
if (dwarf2out_do_frame ())
{
const char *label = dwarf2out_cfi_label ();
- int offset = 0;
+ int offset;
- for (regno = FIRST_PSEUDO_REGISTER-1; regno >= 0; --regno)
- if (regs_ever_live[regno] && !call_used_regs[regno])
- dwarf2out_reg_save (label, regno, offset -= 4);
-
- dwarf2out_reg_save (label, PC_REGNUM, offset -= 4);
- dwarf2out_reg_save (label, FRAME_POINTER_REGNUM, offset -= 4);
- dwarf2out_reg_save (label, ARG_POINTER_REGNUM, offset -= 4);
- dwarf2out_def_cfa (label, FRAME_POINTER_REGNUM, -(offset - 4));
+ offset = -20;
+ for (regno = 0; regno < FIRST_PSEUDO_REGISTER; ++regno)
+ if (regs_ever_live[regno] && !call_used_regs[regno])
+ offset -= 4;
+
+ dwarf2out_def_cfa (label, FRAME_POINTER_REGNUM, -offset);
+ dwarf2out_reg_save (label, PSW_REGNUM, offset += 4);
+ dwarf2out_reg_save (label, ARG_POINTER_REGNUM, offset += 4);
+ dwarf2out_reg_save (label, FRAME_POINTER_REGNUM, offset += 4);
+ dwarf2out_reg_save (label, PC_REGNUM, offset += 4);
+
+ for (regno = 0; regno < FIRST_PSEUDO_REGISTER; ++regno)
+ if (regs_ever_live[regno] && !call_used_regs[regno])
+ dwarf2out_reg_save (label, regno, offset += 4);
}
size -= STARTING_FRAME_OFFSET;
Index: src/gnu/dist/gcc4/gcc/config/vax/vax.h
diff -u src/gnu/dist/gcc4/gcc/config/vax/vax.h:1.5 src/gnu/dist/gcc4/gcc/config/vax/vax.h:1.6
--- src/gnu/dist/gcc4/gcc/config/vax/vax.h:1.5 Mon Apr 2 16:44:17 2007
+++ src/gnu/dist/gcc4/gcc/config/vax/vax.h Tue Mar 18 23:43:40 2014
@@ -166,6 +166,9 @@ Boston, MA 02110-1301, USA. */
/* Specify the registers used for certain standard purposes.
The values of these macros are register numbers. */
+/* VAX PSW for DWARF-2 */
+#define PSW_REGNUM VAX_PSW_REGNUM
+
/* VAX pc is overloaded on a register. */
#define PC_REGNUM VAX_PC_REGNUM
Index: src/gnu/dist/gcc4/gcc/config/vax/vax.md
diff -u src/gnu/dist/gcc4/gcc/config/vax/vax.md:1.17 src/gnu/dist/gcc4/gcc/config/vax/vax.md:1.18
--- src/gnu/dist/gcc4/gcc/config/vax/vax.md:1.17 Mon Apr 8 12:10:53 2013
+++ src/gnu/dist/gcc4/gcc/config/vax/vax.md Tue Mar 18 23:43:40 2014
@@ -40,6 +40,7 @@
(VAX_FP_REGNUM 13) ; Register 13 contains the frame pointer
(VAX_SP_REGNUM 14) ; Register 14 contains the stack pointer
(VAX_PC_REGNUM 15) ; Register 15 contains the program counter
+ (VAX_PSW_REGNUM 16) ; Program Status Word
]
)
