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| author | Joern Rennecke <amylaar@gcc.gnu.org> | 1996-12-10 18:47:02 +0000 |
|---|---|---|
| committer | Joern Rennecke <amylaar@gcc.gnu.org> | 1996-12-10 18:47:02 +0000 |
| commit | 8e90e2734ed1211709aa2aaf828b7bad1a91eaaf (patch) | |
| tree | 761d620d0e8bb49c35fdee33187e8c08caf4a7af /gcc | |
| parent | cc3af271e681b358eed6e9fbbf5971a2fdd01a84 (diff) | |
| download | gcc-8e90e2734ed1211709aa2aaf828b7bad1a91eaaf.zip gcc-8e90e2734ed1211709aa2aaf828b7bad1a91eaaf.tar.gz gcc-8e90e2734ed1211709aa2aaf828b7bad1a91eaaf.tar.bz2 | |
(ADJUST_INSN_LENGTH): don't break from loop when only a LOOP_BEG is found.
Calculate padding in new variable pad.
From-SVN: r13261
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/config/sh/sh.h | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/gcc/config/sh/sh.h b/gcc/config/sh/sh.h index 217ce5a..8408bc6 100644 --- a/gcc/config/sh/sh.h +++ b/gcc/config/sh/sh.h @@ -1650,27 +1650,34 @@ extern int pragma_interrupt; LENGTH += 2; \ if (! TARGET_SMALLCODE) \ { \ + /* After the folowing loop, PAD will be an upper bound \ + for the number of padding bytes the alignment will \ + require. */ \ rtx aip; \ + int pad = 0; \ for (aip = PREV_INSN (X); aip; aip = PREV_INSN (aip)) \ { \ if (GET_CODE (aip) == BARRIER) \ { \ if (TARGET_SH3 || TARGET_SH3E) \ - LENGTH += 14; \ + pad = 14; \ else \ - LENGTH += 2; \ + pad = 2; \ break; \ } \ else if ((GET_CODE (aip) == NOTE \ && NOTE_LINE_NUMBER (aip) == NOTE_INSN_LOOP_BEG)) \ { \ - LENGTH += 2; \ - break; \ + pad = 2; \ + /* Don't break here, because there might be a \ + preceding BARRIER, which requires mores \ + alignment for SH3[E] . */ \ } \ else if (GET_CODE (aip) != NOTE \ && GET_CODE (aip) != CODE_LABEL) \ break; \ } \ + LENGTH += pad; \ } /* Enable a bug fix for the shorten_branches pass. */ |