diff options
| author | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2016-02-16 15:15:40 +0000 |
|---|---|---|
| committer | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2016-02-16 15:15:40 +0000 |
| commit | 3ae1cc909273683bc08e3a03b67984d8de035237 (patch) | |
| tree | b6733f347deabb26123cd915133b4007c4eda4c1 /gcc/optabs.c | |
| parent | f72a5e61748af6eebe662bac07f42308df23a9ac (diff) | |
PR rtl-optimization/69764
PR rtl-optimization/69771
* optabs.c (expand_binop): Ensure for shift optabs invalid CONST_INT
op1 is valid for GET_MODE_INNER (mode) and force it into a reg.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@233456 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/optabs.c')
| -rw-r--r-- | gcc/optabs.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/gcc/optabs.c b/gcc/optabs.c index b651878b725..a6d8822b87e 100644 --- a/gcc/optabs.c +++ b/gcc/optabs.c @@ -1125,6 +1125,16 @@ expand_binop (machine_mode mode, optab binoptab, rtx op0, rtx op1, op1 = negate_rtx (mode, op1); binoptab = add_optab; } + /* For shifts, constant invalid op1 might be expanded from different + mode than MODE. As those are invalid, force them to a register + to avoid further problems during expansion. */ + else if (CONST_INT_P (op1) + && shift_optab_p (binoptab) + && UINTVAL (op1) >= GET_MODE_BITSIZE (GET_MODE_INNER (mode))) + { + op1 = gen_int_mode (INTVAL (op1), GET_MODE_INNER (mode)); + op1 = force_reg (GET_MODE_INNER (mode), op1); + } /* Record where to delete back to if we backtrack. */ last = get_last_insn (); |