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| author | Graham Stott <grahams@gcc.gnu.org> | 2004-06-05 07:59:39 +0000 |
|---|---|---|
| committer | Graham Stott <grahams@gcc.gnu.org> | 2004-06-05 07:59:39 +0000 |
| commit | 446f52f40bb4083e0e4e92de0442141a1d3d633d (patch) | |
| tree | 90e178a8dd180582334958da2b47f629ea619198 /gcc/combine.c | |
| parent | 90aa6719a03ca37a01bf94240dbf02fb4b1eb3e0 (diff) | |
| download | gcc-446f52f40bb4083e0e4e92de0442141a1d3d633d.zip gcc-446f52f40bb4083e0e4e92de0442141a1d3d633d.tar.gz gcc-446f52f40bb4083e0e4e92de0442141a1d3d633d.tar.bz2 | |
combine.c (simplify_shift_const): Check shift amount is a CONST_INT.
* combine.c(simplify_shift_const): Check shift amount is a
CONST_INT.
From-SVN: r82644
Diffstat (limited to 'gcc/combine.c')
| -rw-r--r-- | gcc/combine.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/gcc/combine.c b/gcc/combine.c index 64af27c..44ca720 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -8763,9 +8763,10 @@ simplify_shift_const (rtx x, enum rtx_code code, logical expression, make a new logical expression, and apply the inverse distributive law. This also can't be done for some (ashiftrt (xor)). */ - if (code != ASHIFTRT || GET_CODE (varop)!= XOR - || 0 <= trunc_int_for_mode (INTVAL (XEXP (varop, 1)), - shift_mode)) + if (GET_CODE (XEXP (varop, 1)) == CONST_INT + && !(code == ASHIFTRT && GET_CODE (varop) == XOR + && 0 > trunc_int_for_mode (INTVAL (XEXP (varop, 1)), + shift_mode))) { rtx lhs = simplify_shift_const (NULL_RTX, code, shift_mode, XEXP (varop, 0), count); @@ -8776,6 +8777,7 @@ simplify_shift_const (rtx x, enum rtx_code code, varop = apply_distributive_law (varop); count = 0; + continue; } break; |