Peter tells me it was an artifact of old versions of the DFP code. The condition can never be false; delete it.
2014-12-08 Segher Boessenkool <seg...@kernel.crashing.org> gcc/ * config/rs6000/rs6000.md (*add<mode>3): Remove condition. --- gcc/config/rs6000/rs6000.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/gcc/config/rs6000/rs6000.md b/gcc/config/rs6000/rs6000.md index a544e57..6724819 100644 --- a/gcc/config/rs6000/rs6000.md +++ b/gcc/config/rs6000/rs6000.md @@ -1506,7 +1506,7 @@ (define_insn "*add<mode>3" [(set (match_operand:GPR 0 "gpc_reg_operand" "=r,r,r") (plus:GPR (match_operand:GPR 1 "gpc_reg_operand" "%r,b,b") (match_operand:GPR 2 "add_operand" "r,I,L")))] - "!DECIMAL_FLOAT_MODE_P (GET_MODE (operands[0])) && !DECIMAL_FLOAT_MODE_P (GET_MODE (operands[1]))" + "" "@ add %0,%1,%2 addi %0,%1,%2 -- 1.8.1.4