diff options
Diffstat (limited to 'gcc/expr.c')
| -rw-r--r-- | gcc/expr.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/gcc/expr.c b/gcc/expr.c index dd89cad94f5..2ec75b7aa7c 100644 --- a/gcc/expr.c +++ b/gcc/expr.c @@ -466,19 +466,27 @@ convert_move (rtx to, rtx from, int unsignedp) } if (GET_MODE_CLASS (from_mode) == MODE_PARTIAL_INT) { + rtx new_from; enum machine_mode full_mode = smallest_mode_for_size (GET_MODE_BITSIZE (from_mode), MODE_INT); gcc_assert (sext_optab->handlers[full_mode][from_mode].insn_code != CODE_FOR_nothing); - emit_unop_insn (sext_optab->handlers[full_mode][from_mode].insn_code, - to, from, UNKNOWN); if (to_mode == full_mode) - return; + { + emit_unop_insn (sext_optab->handlers[full_mode][from_mode].insn_code, + to, from, UNKNOWN); + return; + } + + new_from = gen_reg_rtx (full_mode); + emit_unop_insn (sext_optab->handlers[full_mode][from_mode].insn_code, + new_from, from, UNKNOWN); /* else proceed to integer conversions below. */ from_mode = full_mode; + from = new_from; } /* Now both modes are integers. */ @@ -7753,7 +7761,7 @@ expand_expr_real_1 (tree exp, rtx target, enum machine_mode tmode, optab other_optab = zextend_p ? smul_widen_optab : umul_widen_optab; this_optab = zextend_p ? umul_widen_optab : smul_widen_optab; - if (mode == GET_MODE_WIDER_MODE (innermode)) + if (mode == GET_MODE_2XWIDER_MODE (innermode)) { if (this_optab->handlers[(int) mode].insn_code != CODE_FOR_nothing) { |