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| author | wilson <wilson@138bc75d-0d04-0410-961f-82ee72b054a4> | 1999-03-08 16:09:05 +0000 |
|---|---|---|
| committer | wilson <wilson@138bc75d-0d04-0410-961f-82ee72b054a4> | 1999-03-08 16:09:05 +0000 |
| commit | 02f1afa569313a1bffb2ee2d197d0df4dce0c4a4 (patch) | |
| tree | b8606b5e3306b357419fb22b180616ee884b4a17 /gcc/unroll.c | |
| parent | d278ec97586a4440d9904ccbbe8a540cd33352fe (diff) | |
| download | ppe42-gcc-02f1afa569313a1bffb2ee2d197d0df4dce0c4a4.tar.gz ppe42-gcc-02f1afa569313a1bffb2ee2d197d0df4dce0c4a4.zip | |
Fix cygwin toolchain build failure reported by Geoffrey Noer.
* unroll.c (loop_iterations): Only call loop_find_equiv_value if we
have a REG or SUBREG.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@25643 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/unroll.c')
| -rw-r--r-- | gcc/unroll.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/gcc/unroll.c b/gcc/unroll.c index 841f06a23d1..32ed5314370 100644 --- a/gcc/unroll.c +++ b/gcc/unroll.c @@ -3830,7 +3830,11 @@ loop_iterations (loop_start, loop_end, loop_info) if (GET_CODE (increment) != CONST_INT) { - increment = loop_find_equiv_value (loop_start, increment); + /* If we have a REG, check to see if REG holds a constant value. */ + /* ??? Other RTL, such as (neg (reg)) is possible here, but it isn't + clear if it is worthwhile to try to handle such RTL. */ + if (GET_CODE (increment) == REG || GET_CODE (increment) == SUBREG) + increment = loop_find_equiv_value (loop_start, increment); if (GET_CODE (increment) != CONST_INT) { |
