Hello everybody,
I have some question about Conditional Execution Pattern.
In fact, I want to remove Conditional Execution in ARM for experimentation.
I have remove lots of Conditional Execution Pattern from arm.md
But I see a RTX that I can't understand.
@(insn 74 79 80 ../../../gcc-live/libgcc/../gcc/libgcc2.c:1848 (set
(reg:QI 18 r18 [320])
@ (const_int 1 [0x1])) 169 {*arm_movqi_insn}
(expr_list:REG_EQUAL (const_int 1 [0x1])
@ (nil)))
mov r18, #1 @ 74 *arm_movqi_insn/1 [length = 4]
@(jump_insn 80 74 729 ../../../gcc-live/libgcc/../gcc/libgcc2.c:1848 (set (pc)
@ (if_then_else (ne (reg:CC 40 cc)
@ (const_int 0 [0x0]))
@ (label_ref 83)
@ (pc))) 220 {*arm_cond_branch} (expr_list:REG_DEAD (reg:CC 40 cc)
@ (expr_list:REG_BR_PROB (const_int 5000 [0x1388])
@ (nil)))
-> 83)
@(insn 82 729 83 ../../../gcc-live/libgcc/../gcc/libgcc2.c:1848 (set
(reg:QI 18 r18 [320])
@ (const_int 0 [0x0])) 169 {*arm_movqi_insn}
(expr_list:REG_EQUAL (const_int 0 [0x0])
@ (nil)))
moveq r18, #0 @ 82 *arm_movqi_insn/1 [length = 4]
I don't know the expr_list:REG_EQUAL is how to generate, I have seem
it in expand pass.
