admin/llgo
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

cl: instr llgo.index/advance

Browse Source
This commit is contained in:
xushiwei
2024-05-07 16:05:18 +08:00
parent 942b1f5159
commit 5a5d86ccc3
7 changed files with 84 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
ssa/expr.go
View File

@@ -496,12 +496,20 @@ func (b Builder) Phi(t Type) Phi {
// -----------------------------------------------------------------------------
// Advance returns the pointer ptr advanced by offset bytes.
// Advance returns the pointer ptr advanced by offset.
func (b Builder) Advance(ptr Expr, offset Expr) Expr {
if debugInstr {
log.Printf("Advance %v, %v\n", ptr.impl, offset.impl)
}
ret := llvm.CreateGEP(b.impl, b.Prog.tyInt8(), ptr.impl, []llvm.Value{offset.impl})
var elem llvm.Type
var prog = b.Prog
var telem = ptr.raw.Type.(*types.Pointer).Elem()
if telem == types.Typ[types.Invalid] { // void
elem = prog.tyInt8()
} else {
elem = prog.rawType(telem).ll
}
ret := llvm.CreateGEP(b.impl, elem, ptr.impl, []llvm.Value{offset.impl})
return Expr{ret, ptr.Type}
}