tinygo-org/tinygo
1
0
Fork 0
mirror of https://github.com/tinygo-org/tinygo.git synced 2026-08-16 10:43:29 +00:00
Code Issues Packages Projects Releases 6 Wiki Activity

all: remove LLVM 14 support

Browse Source 
This is a big change: apart from removing LLVM 14 it also removes typed
pointer support (which was only fully supported in LLVM up to version
14). This removes about 200 lines of code, but more importantly removes
a ton of special cases for LLVM 14.
This commit is contained in:
Ayke van Laethem
2023-09-18 17:54:29 +02:00
committed by Ayke
parent c9721197d5
commit 1da1abe314
33 changed files with 247 additions and 467 deletions
Download Patch File Download Diff File Expand all files Collapse all files
compiler/atomic.go
-28
View File
@@ -35,17 +35,7 @@ func (b *builder) createAtomicOp(name string) llvm.Value {
case "SwapInt32", "SwapInt64", "SwapUint32", "SwapUint64", "SwapUintptr", "SwapPointer":
ptr := b.getValue(b.fn.Params[0], getPos(b.fn))
val := b.getValue(b.fn.Params[1], getPos(b.fn))
isPointer := val.Type().TypeKind() == llvm.PointerTypeKind
if isPointer {
// atomicrmw only supports integers, so cast to an integer.
// TODO: this is fixed in LLVM 15.
val = b.CreatePtrToInt(val, b.uintptrType, "")
ptr = b.CreateBitCast(ptr, llvm.PointerType(val.Type(), 0), "")
}
oldVal := b.CreateAtomicRMW(llvm.AtomicRMWBinOpXchg, ptr, val, llvm.AtomicOrderingSequentiallyConsistent, true)
if isPointer {
oldVal = b.CreateIntToPtr(oldVal, b.i8ptrType, "")
}
return oldVal
case "CompareAndSwapInt32", "CompareAndSwapInt64", "CompareAndSwapUint32", "CompareAndSwapUint64", "CompareAndSwapUintptr", "CompareAndSwapPointer":
ptr := b.getValue(b.fn.Params[0], getPos(b.fn))
@@ -63,24 +53,6 @@ func (b *builder) createAtomicOp(name string) llvm.Value {
case "StoreInt32", "StoreInt64", "StoreUint32", "StoreUint64", "StoreUintptr", "StorePointer":
ptr := b.getValue(b.fn.Params[0], getPos(b.fn))
val := b.getValue(b.fn.Params[1], getPos(b.fn))
if strings.HasPrefix(b.Triple, "avr") {
// SelectionDAGBuilder is currently missing the "are unaligned atomics allowed" check for stores.
vType := val.Type()
isPointer := vType.TypeKind() == llvm.PointerTypeKind
if isPointer {
// libcalls only supports integers, so cast to an integer.
vType = b.uintptrType
val = b.CreatePtrToInt(val, vType, "")
ptr = b.CreateBitCast(ptr, llvm.PointerType(vType, 0), "")
}
name := fmt.Sprintf("__atomic_store_%d", vType.IntTypeWidth()/8)
fn := b.mod.NamedFunction(name)
if fn.IsNil() {
fn = llvm.AddFunction(b.mod, name, llvm.FunctionType(vType, []llvm.Type{ptr.Type(), vType, b.uintptrType}, false))
}
b.createCall(fn.GlobalValueType(), fn, []llvm.Value{ptr, val, llvm.ConstInt(b.uintptrType, 5, false)}, "")
return llvm.Value{}
}
store := b.CreateStore(val, ptr)
store.SetOrdering(llvm.AtomicOrderingSequentiallyConsistent)
store.SetAlignment(b.targetData.PrefTypeAlignment(val.Type())) // required