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| author | Alan Modra <amodra@bigpond.net.au> | 2002-02-23 02:11:07 +0000 |
|---|---|---|
| committer | David Edelsohn <dje@gcc.gnu.org> | 2002-02-22 21:11:07 -0500 |
| commit | 57deb3a13bdb2f425f51b274d3369aaeca79e184 (patch) | |
| tree | 885fc13cb45924174bf780d8d76a1f25b284a750 | |
| parent | e72247f417055c24de8e8ceb755b02f03222718c (diff) | |
| download | gcc-57deb3a13bdb2f425f51b274d3369aaeca79e184.zip gcc-57deb3a13bdb2f425f51b274d3369aaeca79e184.tar.gz gcc-57deb3a13bdb2f425f51b274d3369aaeca79e184.tar.bz2 | |
- Add missing mask_operand patch.
From-SVN: r49984
| -rw-r--r-- | gcc/ChangeLog | 1 | ||||
| -rw-r--r-- | gcc/config/rs6000/rs6000.c | 5 |
2 files changed, 6 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 218f811..4be4f46 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -9,6 +9,7 @@ Simplify comparison of `low'. (add_operand): Fix formatting. (non_add_cint_operand): Use CONST_OK_FOR_LETTER_P. + (mask_operand): Disallow mask to wrap in 64-bit mode. (rs6000_stack_info): Remove redundant test setting push_p. (output_toc): Fix formatting. * config/rs6000/rs6000.md (boolsi3, boolcsi3 splitters): Use diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c index 863126e..70adbf8 100644 --- a/gcc/config/rs6000/rs6000.c +++ b/gcc/config/rs6000/rs6000.c @@ -1399,6 +1399,11 @@ mask_operand (op, mode) c = INTVAL (op); + /* Fail in 64-bit mode if the mask wraps around because the upper + 32-bits of the mask will all be 1s, contrary to GCC's internal view. */ + if (TARGET_POWERPC64 && (c & 0x80000001) == 0x80000001) + return 0; + /* We don't change the number of transitions by inverting, so make sure we start with the LS bit zero. */ if (c & 1) |