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Make mem.set use llvm.memset.p0i8.iXX

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This commit is contained in:
gingerBill
2019-12-31 14:09:51 +00:00
parent c407687a4c
commit 13107628f8
2 changed files with 32 additions and 18 deletions
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core/mem/mem.odin
+12 -1
View File
@@ -12,7 +12,18 @@ swap :: proc{swap16, swap32, swap64};
set :: proc "contextless" (data: rawptr, value: byte, len: int) -> rawptr {
return runtime.memset(data, i32(value), len);
foreign _ {
when size_of(rawptr) == 8 {
@(link_name="llvm.memset.p0i8.i64")
llvm_memset :: proc(dst: rawptr, val: byte, len: int, align: i32, is_volatile: bool) ---;
} else {
@(link_name="llvm.memset.p0i8.i32")
llvm_memset :: proc(dst: rawptr, val: byte, len: int, align: i32, is_volatile: bool) ---;
}
}
llvm_memset(data, value, len, 1, false);
return data;
}
zero :: inline proc "contextless" (data: rawptr, len: int) -> rawptr {
return set(data, 0, len);
core/runtime/procs_everything_else.odin
+20 -17
View File
@@ -3,25 +3,28 @@ package runtime
@(link_name="memset")
memset :: proc "c" (ptr: rawptr, val: i32, len: int) -> rawptr {
when false {
b := byte(val);
when false {
b := byte(val);
p_start := uintptr(ptr);
p_end := p + uintptr(max(len, 0));
for p := p_start; p < p_end; p += 1 {
(^byte)(p)^ = b;
}
p_start := uintptr(ptr);
p_end := p + uintptr(max(len, 0));
for p := p_start; p < p_end; p += 1 {
(^byte)(p)^ = b;
}
return ptr;
} else {
when size_of(rawptr) == 8 {
@(link_name="llvm.memset.p0i8.i64")
llvm_memset :: proc(dst: rawptr, val: byte, len: int, align: i32, is_volatile: bool) ---;
return ptr;
} else {
@(link_name="llvm.memset.p0i8.i32")
llvm_memset :: proc(dst: rawptr, val: byte, len: int, align: i32, is_volatile: bool) ---;
}
foreign _ {
when size_of(rawptr) == 8 {
@(link_name="llvm.memset.p0i8.i64")
llvm_memset :: proc(dst: rawptr, val: byte, len: int, align: i32, is_volatile: bool) ---;
} else {
@(link_name="llvm.memset.p0i8.i32")
llvm_memset :: proc(dst: rawptr, val: byte, len: int, align: i32, is_volatile: bool) ---;
}
return llvm_memset(ptr, byte(val), len, 1, false);
}
}
llvm_memset(ptr, byte(val), len, 1, false);
return ptr;
}
}