Optimize process_heap_alloc by Zoxc · Pull Request #122326 · rust-lang/rust (original) (raw)
Rollup merge of rust-lang#122326 - Zoxc:win-alloc-tweak, r=ChrisDenton
Optimize process_heap_alloc
This optimizes process_heap_alloc introduced in rust-lang#120205.
From:
.text:0000000180027ED0 ; std::sys::pal::windows::alloc::process_heap_alloc::h703a613b3e25ff93
.text:0000000180027ED0 public _ZN3std3sys3pal7windows5alloc18process_heap_alloc17h703a613b3e25ff93E
.text:0000000180027ED0 _ZN3std3sys3pal7windows5alloc18process_heap_alloc17h703a613b3e25ff93E proc near
.text:0000000180027ED0 ; CODE XREF: std::sys::pal::common::alloc::realloc_fallback::hc4c96b4c24d03e77+23↑p
.text:0000000180027ED0 ; std::sys::pal::common::alloc::realloc_fallback::hc4c96b4c24d03e77+55↑p ...
.text:0000000180027ED0 push rsi
.text:0000000180027ED1 push rdi
.text:0000000180027ED2 sub rsp, 28h
.text:0000000180027ED6 mov rsi, rdx
.text:0000000180027ED9 mov edi, ecx
.text:0000000180027EDB mov rcx, cs:_ZN3std3sys3pal7windows5alloc4HEAP17hb53ca4010cc29b62E ; std::sys::pal::windows::alloc::HEAP::hb53ca4010cc29b62
.text:0000000180027EE2 test rcx, rcx
.text:0000000180027EE5 jnz short loc_180027EFC
.text:0000000180027EE7 call cs:__imp_GetProcessHeap
.text:0000000180027EED test rax, rax
.text:0000000180027EF0 jz short loc_180027F0E
.text:0000000180027EF2 mov rcx, rax
.text:0000000180027EF5 mov cs:_ZN3std3sys3pal7windows5alloc4HEAP17hb53ca4010cc29b62E, rax ; std::sys::pal::windows::alloc::HEAP::hb53ca4010cc29b62
.text:0000000180027EFC
.text:0000000180027EFC loc_180027EFC: ; CODE XREF: std::sys::pal::windows::alloc::process_heap_alloc::h703a613b3e25ff93+15↑j
.text:0000000180027EFC mov edx, edi
.text:0000000180027EFE mov r8, rsi
.text:0000000180027F01 add rsp, 28h
.text:0000000180027F05 pop rdi
.text:0000000180027F06 pop rsi
.text:0000000180027F07 jmp cs:__imp_HeapAlloc
.text:0000000180027F0E ; ---------------------------------------------------------------------------
.text:0000000180027F0E
.text:0000000180027F0E loc_180027F0E: ; CODE XREF: std::sys::pal::windows::alloc::process_heap_alloc::h703a613b3e25ff93+20↑j
.text:0000000180027F0E xor eax, eax
.text:0000000180027F10 add rsp, 28h
.text:0000000180027F14 pop rdi
.text:0000000180027F15 pop rsi
.text:0000000180027F16 retn
.text:0000000180027F16 _ZN3std3sys3pal7windows5alloc18process_heap_alloc17h703a613b3e25ff93E endpto
.text:0000000180027EE0 ; std::sys::pal::windows::alloc::process_heap_alloc::h70f9d61a631e5c16
.text:0000000180027EE0 public _ZN3std3sys3pal7windows5alloc18process_heap_alloc17h70f9d61a631e5c16E
.text:0000000180027EE0 _ZN3std3sys3pal7windows5alloc18process_heap_alloc17h70f9d61a631e5c16E proc near
.text:0000000180027EE0 ; CODE XREF: std::sys::pal::common::alloc::realloc_fallback::hc4c96b4c24d03e77+23↑p
.text:0000000180027EE0 ; std::sys::pal::common::alloc::realloc_fallback::hc4c96b4c24d03e77+54↑p ...
.text:0000000180027EE0 mov rcx, cs:_ZN3std3sys3pal7windows5alloc4HEAP17hb53ca4010cc29b62E ; std::sys::pal::windows::alloc::HEAP::hb53ca4010cc29b62
.text:0000000180027EE7 test rcx, rcx
.text:0000000180027EEA jz short loc_180027EF3
.text:0000000180027EEC jmp cs:__imp_HeapAlloc
.text:0000000180027EF3 ; ---------------------------------------------------------------------------
.text:0000000180027EF3
.text:0000000180027EF3 loc_180027EF3: ; CODE XREF: std::sys::pal::windows::alloc::process_heap_alloc::h70f9d61a631e5c16+A↑j
.text:0000000180027EF3 mov ecx, edx
.text:0000000180027EF5 mov rdx, r8
.text:0000000180027EF8 jmp std__sys__pal__windows__alloc__process_heap_init_and_alloc
.text:0000000180027EF8 _ZN3std3sys3pal7windows5alloc18process_heap_alloc17h70f9d61a631e5c16E endpr? @ChrisDenton