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| author | Jan-Benedict Glaw <jbglaw@lug-owl.de> | 2014-01-20 11:20:24 +0000 |
|---|---|---|
| committer | Iain Sandoe <iains@gcc.gnu.org> | 2014-01-20 11:20:24 +0000 |
| commit | c716977996bb5b73c3ab8dd7c14215697d5eed19 (patch) | |
| tree | cfcfb0e8927b0bc1b008c8350555da8e4ae69be3 /gcc/config | |
| parent | 409b6ac1969b3449bd90acf655cd55d97e4e0d29 (diff) | |
| download | gcc-c716977996bb5b73c3ab8dd7c14215697d5eed19.zip gcc-c716977996bb5b73c3ab8dd7c14215697d5eed19.tar.gz gcc-c716977996bb5b73c3ab8dd7c14215697d5eed19.tar.bz2 | |
re PR bootstrap/59496 (Bootstrap fails on powerpc-apple-darwin9 after r205685)
gcc:
PR bootstrap/59496
* config/rs6000/darwin.h (ADJUST_FIELD_ALIGN): Fix unused variable
warning. Amend comment to reflect current functionality.
Co-Authored-By: Iain Sandoe <iain@codesourcery.com>
From-SVN: r206802
Diffstat (limited to 'gcc/config')
| -rw-r--r-- | gcc/config/rs6000/darwin.h | 23 |
1 files changed, 13 insertions, 10 deletions
diff --git a/gcc/config/rs6000/darwin.h b/gcc/config/rs6000/darwin.h index 43a2ab5..0329f3f 100644 --- a/gcc/config/rs6000/darwin.h +++ b/gcc/config/rs6000/darwin.h @@ -321,16 +321,19 @@ extern int darwin_emit_branch_islands; ? GENERAL_REGS \ : (CLASS)) -/* Compute field alignment. This is similar to the version of the - macro in the Apple version of GCC, except that version supports - 'mac68k' alignment, and that version uses the computed alignment - always for the first field of a structure. The first-field - behavior is dealt with by - darwin_rs6000_special_round_type_align. */ -#define ADJUST_FIELD_ALIGN(FIELD, COMPUTED) \ - (TARGET_ALIGN_NATURAL ? (COMPUTED) \ - : (COMPUTED) == 128 ? 128 \ - : MIN ((COMPUTED), 32)) +/* Compute field alignment. + This implements the 'power' alignment rule by pegging the alignment of + items (beyond the first aggregate field) to 32 bits. The pegging is + suppressed for vector and long double items (both 128 in size). + There is a dummy use of the FIELD argument to avoid an unused variable + warning (see PR59496). */ +#define ADJUST_FIELD_ALIGN(FIELD, COMPUTED) \ + ((void) (FIELD), \ + (TARGET_ALIGN_NATURAL \ + ? (COMPUTED) \ + : (COMPUTED) == 128 \ + ? 128 \ + : MIN ((COMPUTED), 32))) /* Darwin increases natural record alignment to doubleword if the first field is an FP double while the FP fields remain word aligned. */ |