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| author | John Carr <jfc@mit.edu> | 1998-04-17 14:41:49 +0000 |
|---|---|---|
| committer | Jim Wilson <wilson@gcc.gnu.org> | 1998-04-17 07:41:49 -0700 |
| commit | 77e6b0eb6094880a5989fbd87a09fc772f73f575 (patch) | |
| tree | ccd6b7fd42d32991a045c9b70abc3608d011bc9a /gcc/emit-rtl.c | |
| parent | 27f4cfdb2fdd6bfa9328dd0be59ad37138236b34 (diff) | |
| download | gcc-77e6b0eb6094880a5989fbd87a09fc772f73f575.zip gcc-77e6b0eb6094880a5989fbd87a09fc772f73f575.tar.gz gcc-77e6b0eb6094880a5989fbd87a09fc772f73f575.tar.bz2 | |
Patch from John Carr to fix sparc v9 failure.
* emit-rtl.c (operand_subword_force): If a register can not be
accessed by words, copy it to a pseudo register.
From-SVN: r19267
Diffstat (limited to 'gcc/emit-rtl.c')
| -rw-r--r-- | gcc/emit-rtl.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/gcc/emit-rtl.c b/gcc/emit-rtl.c index 4d9361c..40b0aa5 100644 --- a/gcc/emit-rtl.c +++ b/gcc/emit-rtl.c @@ -1380,7 +1380,14 @@ operand_subword_force (op, i, mode) return result; if (mode != BLKmode && mode != VOIDmode) - op = force_reg (mode, op); + { + /* If this is a register which can not be accessed by words, copy it + to a pseudo register. */ + if (GET_CODE (op) == REG) + op = copy_to_reg (op); + else + op = force_reg (mode, op); + } result = operand_subword (op, i, 1, mode); if (result == 0) |