diff options
| author | sayle <sayle@138bc75d-0d04-0410-961f-82ee72b054a4> | 2005-02-23 18:20:52 +0000 |
|---|---|---|
| committer | sayle <sayle@138bc75d-0d04-0410-961f-82ee72b054a4> | 2005-02-23 18:20:52 +0000 |
| commit | feba5c4bb38a147cf06a4e60056ae0d7bc9cb824 (patch) | |
| tree | 96f5f39f15b7631322e11e381c095d01a16dce65 /gcc/simplify-rtx.c | |
| parent | 6e4cbf72bd1fa345ecb193c368dac819b0239ff5 (diff) | |
| download | gcc-feba5c4bb38a147cf06a4e60056ae0d7bc9cb824.tar.gz | |
PR target/20018
PR rtl-optimization/20097
* simplify-rtx.c (simplify_relational_operation_1): Avoid creating
BImode SUBREGs of SImode registers which confuse the ia64 backend.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@95461 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/simplify-rtx.c')
| -rw-r--r-- | gcc/simplify-rtx.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/gcc/simplify-rtx.c b/gcc/simplify-rtx.c index b7132ed2fb7..a2cd612f92d 100644 --- a/gcc/simplify-rtx.c +++ b/gcc/simplify-rtx.c @@ -2887,6 +2887,8 @@ simplify_relational_operation_1 (enum rtx_code code, enum machine_mode mode, && op1 == const0_rtx && GET_MODE_CLASS (mode) == MODE_INT && cmp_mode != VOIDmode + /* ??? Work-around BImode bugs in the ia64 backend. */ + && mode != BImode && cmp_mode != BImode && nonzero_bits (op0, cmp_mode) == 1 && STORE_FLAG_VALUE == 1) |