Hi, Indeed, the split condition needs to be populated. However, I doubt that the pattern in question is used by the compiler. Do you have an example where it is exercised?
Thanks, Claudiu ________________________________ From: Kewen Lin <[email protected]> Sent: Wednesday, June 2, 2021 8:04 AM To: [email protected] <[email protected]> Cc: Kewen Lin <[email protected]>; [email protected] <[email protected]>; Claudiu Zissulescu <[email protected]>; [email protected] <[email protected]> Subject: [PATCH 02/11] arc: Update unexpected empty split condition gcc/ChangeLog: * config/arc/arc.md (*bbit_di): Fix empty split condition. --- gcc/config/arc/arc.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/gcc/config/arc/arc.md b/gcc/config/arc/arc.md index 7a52551eef5..a03840c4c36 100644 --- a/gcc/config/arc/arc.md +++ b/gcc/config/arc/arc.md @@ -5020,7 +5020,7 @@ (define_insn_and_split "*bbit_di" (clobber (reg:CC_ZN CC_REG))] "!CROSSING_JUMP_P (insn)" "#" - "" + "&& 1" [(parallel [(set (pc) (if_then_else (match_dup 3) (label_ref (match_dup 0)) (pc))) (clobber (reg:CC_ZN CC_REG))])] -- 2.17.1
