Hi all,
I need some clarification in understanding the below mentioned RTL Expressions
1. (insn 11 10 12 0
gcc/testsuite/gcc.c-torture/execute/20020611-1.c:13 (parallel [
(set (reg/f:SI 13 a5 [28])
(symbol_ref:SI ("n") [flags 0x2] <var_decl 0x40227160 n>))
(clobber (reg:CC 21 cc))
]) 22 {movsi_long_const} (nil)
(expr_list:REG_UNUSED (reg:CC 21 cc)
(expr_list:REG_EQUIV (symbol_ref:SI ("n") [flags 0x2]
<var_decl 0x40227160 n>)
(nil))))
Normally set syntax is : set lval x
here lval is (reg/f: SI 13 a5 [28])
a) To which register is the value of n copied? if a5 is the register
what is 13 and [28]
b) what is [flags 0x2] <var_decl 0x40227160 n>
2.(insn 12 11 13 0 gcc/testsuite/gcc.c-torture/execute/20020611-1.c:13
(set (reg:SI 0 d0 [orig:29 n ] [29])
(mem/c/i:SI (reg/f:SI 13 a5 [28]) [2 n+0 S4 A32])) 15
{movsi_load} (insn_list:REG_DEP_TRUE 11 (nil))
(expr_list:REG_DEAD (reg/f:SI 13 a5 [28])
(expr_list:REG_EQUAL (mem/c/i:SI (symbol_ref:SI ("n") [flags
0x2] <var_decl 0x40227160 n>) [2 n+0 S4 A32])
(nil))))
a) what does this mean [orig:29 n ] [29] in the above expression?
b) what does this mean [2 n+0 S4 A32] in the above expression?
Thanking you in advance,
Regards,
Rohit
