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Sema: use elemPtrOneLayerOnly in zirMemCpy

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Closes #15633
This commit is contained in:
Veikka Tuominen
2023-05-14 15:24:26 +03:00
parent 2703db3b40
commit 0bc5e7b523
2 changed files with 15 additions and 2 deletions
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4
src/Sema.zig
View File

@@ -22146,7 +22146,7 @@ fn zirMemcpy(sema: *Sema, block: *Block, inst: Zir.Inst.Index) CompileError!void
const len = try sema.usizeCast(block, dest_src, len_u64);
for (0..len) |i| {
const elem_index = try sema.addIntUnsigned(Type.usize, i);
const dest_elem_ptr = try sema.elemPtr(
const dest_elem_ptr = try sema.elemPtrOneLayerOnly(
block,
src,
dest_ptr,
@@ -22155,7 +22155,7 @@ fn zirMemcpy(sema: *Sema, block: *Block, inst: Zir.Inst.Index) CompileError!void
true, // init
false, // oob_safety
);
const src_elem_ptr = try sema.elemPtr(
const src_elem_ptr = try sema.elemPtrOneLayerOnly(
block,
src,
src_ptr,

13
test/behavior/memcpy.zig
View File

@@ -65,3 +65,16 @@ fn testMemcpyDestManyPtr() !void {
try expect(buf[3] == 'l');
try expect(buf[4] == 'o');
}
comptime {
const S = struct {
buffer: [8]u8 = undefined,
fn set(self: *@This(), items: []const u8) void {
@memcpy(self.buffer[0..items.len], items);
}
};
var s = S{};
s.set("hello");
if (!std.mem.eql(u8, s.buffer[0..5], "hello")) @compileError("bad");
}