| /* { dg-do compile } */ |
| /* { dg-require-effective-target rv32 } */ |
| /* { dg-skip-if "" { *-*-* } { "-O0" "-Og" "-Os" "-Oz" "-flto" } } */ |
| /* { dg-options "-march=rv32gc -mtune=sifive-5-series -mbranch-cost=6 -mmovcc -fdump-rtl-ce1" } */ |
| |
| int __RTL (startwith ("ce1")) |
| foo (long a, long b) |
| { |
| (function "foo" |
| (param "a" |
| (DECL_RTL (reg/v:SI <2> [ a ])) |
| (DECL_RTL_INCOMING (reg:SI a0 [ a ]))) |
| (param "b" |
| (DECL_RTL (reg/v:SI <3> [ b ])) |
| (DECL_RTL_INCOMING (reg:SI a1 [ b ]))) |
| (insn-chain |
| (block 2 |
| (edge-from entry (flags "FALLTHRU")) |
| (cnote 6 [bb 2] NOTE_INSN_BASIC_BLOCK) |
| (cinsn 2 (set (reg/v:SI <2> [ a ]) |
| (reg:SI a0 [ a ])) "cset-sext.c":8:1 |
| (expr_list:REG_DEAD (reg:SI a0 [ a ]))) |
| (cinsn 3 (set (reg/v:SI <3> [ b ]) |
| (reg:SI a1 [ b ])) "cset-sext.c":8:1 |
| (expr_list:REG_DEAD (reg:SI a1 [ b ]))) |
| (cnote 4 NOTE_INSN_FUNCTION_BEG) |
| (cjump_insn 8 (set (pc) |
| (if_then_else (eq (reg/v:SI <3> [ b ]) |
| (const_int 0)) |
| (label_ref:SI 23) |
| (pc))) "cset-sext.c":9:6 |
| (int_list:REG_BR_PROB 365072228)) |
| (edge-to 4) |
| (edge-to 3 (flags "FALLTHRU")) |
| ) ;; block 2 |
| (block 3 |
| (edge-from 2 (flags "FALLTHRU")) |
| (cnote 9 [bb 3] NOTE_INSN_BASIC_BLOCK) |
| (cinsn 10 (set (reg:SI <1> [ <retval> ]) |
| (ne:SI (reg/v:SI <2> [ a ]) |
| (const_int 0))) "cset-sext.c":11:11 |
| (expr_list:REG_DEAD (reg/v:SI <2> [ a ]))) |
| (edge-to 5 (flags "FALLTHRU")) |
| ) ;; block 3 |
| (block 4 |
| (edge-from 2) |
| (clabel 23 3) |
| (cnote 22 [bb 4] NOTE_INSN_BASIC_BLOCK) |
| (cinsn 5 (set (reg:SI <1> [ <retval> ]) |
| (const_int 0)) "cset-sext.c":10:12 |
| (expr_list:REG_DEAD (reg/v:SI <3> [ b ]))) |
| (edge-to 5 (flags "FALLTHRU")) |
| ) ;; block 4 |
| (block 5 |
| (edge-from 4 (flags "FALLTHRU")) |
| (edge-from 3 (flags "FALLTHRU")) |
| (clabel 16 1) |
| (cnote 19 [bb 5] NOTE_INSN_BASIC_BLOCK) |
| (cinsn 17 (set (reg/i:SI a0) |
| (reg:SI <1> [ <retval> ])) "cset-sext.c":15:1 |
| (expr_list:REG_DEAD (reg:SI <1> [ <retval> ]))) |
| (cinsn 18 (use (reg/i:SI a0)) "cset-sext.c":15:1) |
| (edge-to exit (flags "FALLTHRU")) |
| ) ;; block 5 |
| ) ;; insn-chain |
| (crtl |
| (return_rtx |
| (reg/i:SI a0) |
| ) ;; return_rtx |
| ) ;; crtl |
| ) ;; function "foo" |
| } |
| |
| /* Expect branchless assembly like: |
| |
| snez a1,a1 |
| neg a1,a1 |
| snez a0,a0 |
| and a0,a1,a0 |
| */ |
| |
| /* { dg-final { scan-rtl-dump-times "if-conversion succeeded through noce_try_cmove_arith" 1 "ce1" } } */ |
| /* { dg-final { scan-assembler-times "\\ssnez\\s" 2 } } */ |
| /* { dg-final { scan-assembler-not "\\s(?:beq|bne)\\s" } } */ |