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| author | vmakarov <vmakarov@138bc75d-0d04-0410-961f-82ee72b054a4> | 2014-06-06 17:22:34 +0000 |
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| committer | vmakarov <vmakarov@138bc75d-0d04-0410-961f-82ee72b054a4> | 2014-06-06 17:22:34 +0000 |
| commit | bbf73e27ac8bd56e5a3d96c7fd361c0605b8d0d1 (patch) | |
| tree | aefe1ecd4d6369bfc4ffaac75091b8be5f4fb778 /gcc/lra-constraints.c | |
| parent | a0771737785702d15016325848a314e68582403c (diff) | |
| download | gcc-bbf73e27ac8bd56e5a3d96c7fd361c0605b8d0d1.tar.gz | |
2014-06-06 Vladimir Makarov <vmakarov@redhat.com>
PR rtl-optimization/61325
* lra-constraints.c (process_address_1): Check scale equal to one
to prevent transformation: base + scale * index => base + new_reg.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@211320 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/lra-constraints.c')
| -rw-r--r-- | gcc/lra-constraints.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/gcc/lra-constraints.c b/gcc/lra-constraints.c index cafbc898c66..08716fe698a 100644 --- a/gcc/lra-constraints.c +++ b/gcc/lra-constraints.c @@ -3033,6 +3033,13 @@ process_address_1 (int nop, rtx *before, rtx *after) *ad.inner = simplify_gen_binary (PLUS, GET_MODE (new_reg), new_reg, *ad.index); } + else if (get_index_scale (&ad) == 1) + { + /* The last transformation to one reg will be made in + curr_insn_transform function. */ + end_sequence (); + return false; + } else { /* base + scale * index => base + new_reg, |