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| author | Jeffrey A Law <law@cygnus.com> | 1997-08-27 19:59:51 +0000 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 1997-08-27 13:59:51 -0600 |
| commit | f345de42fc8437a8742aa40cf865de357b21e37f (patch) | |
| tree | 7d1359bf6a618db548e998e24f753e012f4a0dbd /gcc | |
| parent | 67f68fd265af43b2ebeb3d478f71da0389763a98 (diff) | |
| download | gcc-f345de42fc8437a8742aa40cf865de357b21e37f.zip gcc-f345de42fc8437a8742aa40cf865de357b21e37f.tar.gz gcc-f345de42fc8437a8742aa40cf865de357b21e37f.tar.bz2 | |
reorg.c (dbr_schedule): Allow current_function_return_rtx to be something other than a REG.
* reorg.c (dbr_schedule): Allow current_function_return_rtx
to be something other than a REG.
* function.c (expand_function_end): Fix current_function_return_rtx
if it was a pseudo.
Brought over from the fsf/devo.
From-SVN: r14972
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/function.c | 13 | ||||
| -rw-r--r-- | gcc/reorg.c | 3 |
3 files changed, 15 insertions, 6 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 6c84a01..93a2c91 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -29,6 +29,11 @@ Wed Aug 27 01:24:25 1997 H.J. Lu (hjl@gnu.ai.mit.edu) Wed Aug 27 00:49:14 1997 Jeffrey A Law (law@cygnus.com) + * reorg.c (dbr_schedule): Allow current_function_return_rtx + to be something other than a REG. + * function.c (expand_function_end): Fix current_function_return_rtx + if it was a pseudo. + * t-freebsd (USER_H): Include EXTRA_HEADERS and LANG_EXTRA_HEADERS. * x-netbsd: Likewise * x-dgux (USER_H): Include EXTRA_HEADERS and LANG_EXTRA_HEADERS diff --git a/gcc/function.c b/gcc/function.c index d12db1e..644cc72 100644 --- a/gcc/function.c +++ b/gcc/function.c @@ -191,10 +191,10 @@ CUMULATIVE_ARGS current_function_args_info; char *current_function_name; -/* If non-zero, an RTL expression for that location at which the current - function returns its result. Always equal to - DECL_RTL (DECL_RESULT (current_function_decl)), but provided - independently of the tree structures. */ +/* If non-zero, an RTL expression for the location at which the current + function returns its result. If the current function returns its + result in a register, current_function_return_rtx will always be + the hard register containing the result. */ rtx current_function_return_rtx; @@ -5692,6 +5692,11 @@ expand_function_end (filename, line, end_bindings) emit_move_insn (real_decl_result, DECL_RTL (DECL_RESULT (current_function_decl))); emit_insn (gen_rtx (USE, VOIDmode, real_decl_result)); + + /* The delay slot scheduler assumes that current_function_return_rtx + holds the hard register containing the return value, not a temporary + pseudo. */ + current_function_return_rtx = real_decl_result; } /* If returning a structure, arrange to return the address of the value diff --git a/gcc/reorg.c b/gcc/reorg.c index 93ae785..3686907 100644 --- a/gcc/reorg.c +++ b/gcc/reorg.c @@ -4492,8 +4492,7 @@ dbr_schedule (first, file) else SET_HARD_REG_BIT (end_of_function_needs.regs, STACK_POINTER_REGNUM); - if (current_function_return_rtx != 0 - && GET_CODE (current_function_return_rtx) == REG) + if (current_function_return_rtx != 0) mark_referenced_resources (current_function_return_rtx, &end_of_function_needs, 1); |