http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51680
--- Comment #10 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-01-02
10:43:03 UTC ---
Analyzing function body size: float add1(float)
Accounting size:2.00, time:0.00 on new predicate:(not inlined)
BB 2 predicate:(true)
D.2207_2 = x_1(D) + 1.0e+0;
freq:1.00 size: 1 time: 1
Accounting size:1.00, time:1.00 on predicate:(true)
return D.2207_2;
freq:1.00 size: 1 time: 2
Will be eliminated by inlining
Accounting size:1.00, time:2.00 on predicate:(not inlined)
Inline summary for float add1(float)/0 inlinable
self time: 3
global time: 0
self size: 4
global size: 0
self stack: 0
global stack: 0
size:1.000000, time:1.000000, predicate:(true)
size:3.000000, time:2.000000, predicate:(not inlined)
calls:
float add1(float) (float x)
{
float D.2207;
<bb 2>:
D.2207_2 = x_1(D) + 1.0e+0;
return D.2207_2;
}
Analyzing function body size: void process_fun_at(const Fun&, T) [with Fun =
float(float); T = float]
Accounting size:2.00, time:0.00 on new predicate:(not inlined)
BB 2 predicate:(true)
D.2206_3 = fun_1(D) (x_2(D));
freq:1.00 size: 5 time: 17
D.2205_4 = D.2206_3;
freq:1.00 size: 0 time: 0
process (D.2205_4);
freq:1.00 size: 2 time: 11
return;
freq:1.00 size: 1 time: 2
Will be eliminated by inlining
Accounting size:1.00, time:2.00 on predicate:(not inlined)
Inline summary for void process_fun_at(const Fun&, T) [with Fun = float(float);
T = float]/2 inlinable
self time: 30
global time: 0
self size: 10
global size: 0
self stack: 0
global stack: 0
size:0.000000, time:0.000000, predicate:(true)
size:3.000000, time:2.000000, predicate:(not inlined)
calls:
void process(float)/3 function body not available
loop depth: 0 freq:1000 size: 2 time: 11 callee size: 0 stack: 0
indirect call loop depth: 0 freq:1000 size: 5 time: 17
Inline summary for void test(float)/1 inlinable
self time: 14
global time: 0
self size: 6
global size: 0
self stack: 0
global stack: 0
size:0.000000, time:0.000000, predicate:(true)
size:3.000000, time:2.000000, predicate:(not inlined)
calls:
void process_fun_at(const Fun&, T) [with Fun = float(float); T = float]/2
function not considered for inlining
loop depth: 0 freq:1000 size: 3 time: 12 callee size: 5 stack: 0
void test(float) (float i)
{
<bb 2>:
process_fun_at<float(float), float> (add1, i_1(D));
return;
}
during early inlining we decide:
;; Function void test(float) (_Z4testf, funcdef_no=2, decl_uid=2196,
cgraph_uid=1)
Considering inline candidate void process_fun_at(const Fun&, T) [with Fun =
float(float); T = float].
Estimating body: void process_fun_at(const Fun&, T) [with Fun =
float(float); T = float]/2
Known to be false: not inlined
size:7 time:28
Estimating body: void process_fun_at(const Fun&, T) [with Fun =
float(float); T = float]/2
Known to be false: not inlined
size:7 time:28
will not early inline: void test(float)/1->void process_fun_at(const Fun&, T)
[with Fun = float(float); T = float]/2, callee is not leaf and code would grow
by 4
Iterations: 0
void test(float) (float i)
{
<bb 2>:
process_fun_at<float(float), float> (add1, i_1(D));
because we'd replace one call with two. Not sure what the
Inline summary for void process_fun_at(const Fun&, T) [with Fun = float(float);
T = float]/2 inlinable
...
size:0.000000, time:0.000000, predicate:(true)
size:3.000000, time:2.000000, predicate:(not inlined)
lines mean. Honza?
