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| author | Richard Kenner <kenner@gcc.gnu.org> | 1994-07-05 18:27:27 -0400 |
|---|---|---|
| committer | Richard Kenner <kenner@gcc.gnu.org> | 1994-07-05 18:27:27 -0400 |
| commit | 3e073e7297d196adc6fdfb97e008ff5df29c7b7e (patch) | |
| tree | de3b8f6d712e923195ef4b1b4504505e44115456 | |
| parent | e33477bed718cc3c4377204e6ae5f0ddfc73f90e (diff) | |
| download | gcc-3e073e7297d196adc6fdfb97e008ff5df29c7b7e.zip gcc-3e073e7297d196adc6fdfb97e008ff5df29c7b7e.tar.gz gcc-3e073e7297d196adc6fdfb97e008ff5df29c7b7e.tar.bz2 | |
(expand_increment): If pre-incrementing a promoted variable, don't
adjust OP0 since the result won't be used.
From-SVN: r7655
| -rw-r--r-- | gcc/expr.c | 7 |
1 files changed, 6 insertions, 1 deletions
@@ -8042,7 +8042,12 @@ expand_increment (exp, post) shared (it was made by the expand_expr call above). */ if (GET_CODE (op0) == SUBREG && SUBREG_PROMOTED_VAR_P (op0)) - SUBREG_REG (op0) = copy_to_reg (SUBREG_REG (op0)); + { + if (post) + SUBREG_REG (op0) = copy_to_reg (SUBREG_REG (op0)); + else + bad_subreg = 1; + } else if (GET_CODE (op0) == SUBREG && GET_MODE_BITSIZE (GET_MODE (op0)) < BITS_PER_WORD) { |