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| author | krebbel <krebbel@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-12-20 15:20:06 +0000 |
|---|---|---|
| committer | krebbel <krebbel@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-12-20 15:20:06 +0000 |
| commit | b42c8b6f200b3923d2dc0a00301a9fdaf50a3328 (patch) | |
| tree | 3fffded1757ced8661367ad75f348d611b857dc1 | |
| parent | bd83c8ab8d8c65c3a18f449ede7ba2abef6d1c33 (diff) | |
| download | ppe42-gcc-b42c8b6f200b3923d2dc0a00301a9fdaf50a3328.tar.gz ppe42-gcc-b42c8b6f200b3923d2dc0a00301a9fdaf50a3328.zip | |
2012-12-20 Andreas Krebbel <Andreas.Krebbel@de.ibm.com>
PR target/55754
* config/arm/arm.c (arm_canonicalize_comparison): Remove
op0_preserve_value check for zero_extend to and transformation.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@194636 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/config/arm/arm.c | 3 |
2 files changed, 7 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index ca9844f4b44..5c51847eb15 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2012-12-20 Andreas Krebbel <Andreas.Krebbel@de.ibm.com> + + PR target/55754 + * config/arm/arm.c (arm_canonicalize_comparison): Remove + op0_preserve_value check for zero_extend to and transformation. + 2012-12-20 Teresa Johnson <tejohnson@google.com> Jakub Jelinek <jakub@redhat.com> diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c index be4428b9206..4484bc92364 100644 --- a/gcc/config/arm/arm.c +++ b/gcc/config/arm/arm.c @@ -3619,8 +3619,7 @@ arm_canonicalize_comparison (int *code, rtx *op0, rtx *op1, /* If *op0 is (zero_extend:SI (subreg:QI (reg:SI) 0)) and comparing with const0_rtx, change it to (and:SI (reg:SI) (const_int 255)), to facilitate possible combining with a cmp into 'ands'. */ - if (!op0_preserve_value - && mode == SImode + if (mode == SImode && GET_CODE (*op0) == ZERO_EXTEND && GET_CODE (XEXP (*op0, 0)) == SUBREG && GET_MODE (XEXP (*op0, 0)) == QImode |
