| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
... and split the FullySpecifiedType in two overloads.
Initially:
29 [1] FullySpecifiedType::FullySpecifiedType(Type *type) :
<+ 24> 41 54 push %r12
<+ 26> 55 push %rbp
34 [1] static UndefinedType t;
<+ 27> 48 8b 2d 26 68 13 00 mov 0x136826(%rip),%rbp
29 [1] FullySpecifiedType::FullySpecifiedType(Type *type) :
<+ 34> 53 push %rbx
<+ 35> 48 89 fb mov %rdi,%rbx
34 [1] static UndefinedType t;
<+ 38> 0f b6 45 00 movzbl 0x0(%rbp),%eax
<+ 42> 84 c0 test %al,%al
<+ 44> 74 12 je 0x7fffc135c620 <_ZN9CPlusPlus18FullySpecifiedTypeC2EPNS_4TypeE+64>
<+ 46> 4c 8b 25 5b 66 13 00 mov 0x13665b(%rip),%r12
35 [1] return &t;
<+ 53> 4c 89 23 mov %r12,(%rbx)
34 [1] }
<+ 56> 5b pop %rbx
<+ 57> 5d pop %rbp
<+ 58> 41 5c pop %r12
<+ 60> c3 ret
After making it a global variable:
29 [1] FullySpecifiedType::FullySpecifiedType(Type *type) :
f3 0f 1e fa endbr64
30 [1] _type(type), _flags(0)
<+ 4> c7 47 08 00 00 00 00 movl $0x0,0x8(%rdi)
32 [1] if (! type)
<+ 11> 48 85 f6 test %rsi,%rsi
<+ 14> 74 08 je 0x7fffc14675f8 <_ZN9CPlusPlus18FullySpecifiedTypeC2EPNS_4TypeE+24>
<+ 16> 48 89 37 mov %rsi,(%rdi)
34 [1] }
<+ 19> c3 ret
<+ 20> 0f 1f 40 00 nopl 0x0(%rax)
33 [1] _type = &UndefinedType::instance;
<+ 24> 48 8b 35 49 67 13 00 mov 0x136749(%rip),%rsi # 0x7fffc159dd48
<+ 31> 48 89 37 mov %rsi,(%rdi)
34 [1] }
<+ 34> c3 ret
The no-parameters branch after splitting:
29 [1] FullySpecifiedType::FullySpecifiedType() :
f3 0f 1e fa endbr64
30 [1] _type(&UndefinedType::instance), _flags(0)
<+ 4> 48 8b 05 5d 67 13 00 mov 0x13675d(%rip),%rax # 0x7fffc159dd48
<+ 11> c7 47 08 00 00 00 00 movl $0x0,0x8(%rdi)
<+ 18> 48 89 07 mov %rax,(%rdi)
31 [1] {}
<+ 21> c3 ret
Change-Id: I61439d68921cf9fa422304033b75de16bb4aa0d5
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>
|
