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| author | Hans-Peter Nilsson <hp@axis.com> | 2001-04-04 03:53:12 +0000 |
|---|---|---|
| committer | Hans-Peter Nilsson <hp@axis.com> | 2001-04-04 03:53:12 +0000 |
| commit | c335d39444bc893563d53e62bff76a8d1c98cc2c (patch) | |
| tree | d2ce31c04800fa354ac0d8557705f08250a272f4 /gas/config/tc-cris.c | |
| parent | aacb52510a2e29f5a4c3ebae082f9e99b24cf79f (diff) | |
| download | gdb-c335d39444bc893563d53e62bff76a8d1c98cc2c.zip gdb-c335d39444bc893563d53e62bff76a8d1c98cc2c.tar.gz gdb-c335d39444bc893563d53e62bff76a8d1c98cc2c.tar.bz2 | |
* config/tc-cris.c (md_estimate_size_before_relax) <case
ENCODE_RELAX (STATE_CONDITIONAL_BRANCH, STATE_UNDF)>: Don't emit
32-bit branch, just set fragP->fr_subtype. Set fragP->fr_var.
<all cases>: Always set fragP->fr_var using md_cris_relax_table.
Add cases to cover all relax states.
Diffstat (limited to 'gas/config/tc-cris.c')
| -rw-r--r-- | gas/config/tc-cris.c | 43 |
1 files changed, 15 insertions, 28 deletions
diff --git a/gas/config/tc-cris.c b/gas/config/tc-cris.c index 4fbc96a0..0b11f38 100644 --- a/gas/config/tc-cris.c +++ b/gas/config/tc-cris.c @@ -357,33 +357,14 @@ md_estimate_size_before_relax (fragP, segment_type) { case ENCODE_RELAX (STATE_CONDITIONAL_BRANCH, STATE_UNDF): if (S_GET_SEGMENT (fragP->fr_symbol) == segment_type) - { - /* The symbol lies in the same segment - a relaxable case. */ - fragP->fr_subtype - = ENCODE_RELAX (STATE_CONDITIONAL_BRANCH, STATE_BYTE); - } + /* The symbol lies in the same segment - a relaxable case. */ + fragP->fr_subtype + = ENCODE_RELAX (STATE_CONDITIONAL_BRANCH, STATE_BYTE); else - { - /* Unknown or not the same segment, so not relaxable. */ - char *writep; - - /* A small branch-always (2 bytes) to the "real" branch - instruction, plus a delay-slot nop (2 bytes), plus a - jump (2 plus 4 bytes). See gen_cond_branch_32. */ - fragP->fr_fix += 2 + 2 + 2 + 4; - writep = fragP->fr_literal + old_fr_fix; - gen_cond_branch_32 (fragP->fr_opcode, writep, fragP, - fragP->fr_symbol, (symbolS *) NULL, - fragP->fr_offset); - frag_wane (fragP); - } - break; - - case ENCODE_RELAX (STATE_CONDITIONAL_BRANCH, STATE_BYTE): - case ENCODE_RELAX (STATE_CONDITIONAL_BRANCH, STATE_WORD): - /* We *might* give a better initial guess if we peek at offsets - now, but the caller will relax correctly and without this, so - don't bother. */ + /* Unknown or not the same segment, so not relaxable. */ + fragP->fr_subtype + = ENCODE_RELAX (STATE_CONDITIONAL_BRANCH, STATE_DWORD); + fragP->fr_var = md_cris_relax_table[fragP->fr_subtype].rlx_length; break; case ENCODE_RELAX (STATE_BASE_PLUS_DISP_PREFIX, STATE_UNDF): @@ -402,7 +383,7 @@ md_estimate_size_before_relax (fragP, segment_type) /* Go for dword if not absolute or same segment. */ fragP->fr_subtype = ENCODE_RELAX (STATE_BASE_PLUS_DISP_PREFIX, STATE_DWORD); - fragP->fr_var += 4; + fragP->fr_var = md_cris_relax_table[fragP->fr_subtype].rlx_length; } else { @@ -445,9 +426,15 @@ md_estimate_size_before_relax (fragP, segment_type) } break; + case ENCODE_RELAX (STATE_CONDITIONAL_BRANCH, STATE_BYTE): + case ENCODE_RELAX (STATE_CONDITIONAL_BRANCH, STATE_WORD): + case ENCODE_RELAX (STATE_CONDITIONAL_BRANCH, STATE_DWORD): + case ENCODE_RELAX (STATE_BASE_PLUS_DISP_PREFIX, STATE_BYTE): + case ENCODE_RELAX (STATE_BASE_PLUS_DISP_PREFIX, STATE_WORD): case ENCODE_RELAX (STATE_BASE_PLUS_DISP_PREFIX, STATE_DWORD): /* When relaxing a section for the second time, we don't need to - do anything. */ + do anything except making sure that fr_var is set right. */ + fragP->fr_var = md_cris_relax_table[fragP->fr_subtype].rlx_length; break; default: |