1
0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2025-01-31 20:51:52 +01:00

SelectionDAG: accommodate atomic floating stores.

We were applying a pointer truncation to floating types, which crashed LLVM.
That is Not A Good Thing(TM).

llvm-svn: 360421
This commit is contained in:
Tim Northover 2019-05-10 11:23:04 +00:00
parent e23fb5e721
commit f99745ac17
2 changed files with 11 additions and 2 deletions

View File

@ -4717,7 +4717,10 @@ void SelectionDAGBuilder::visitAtomicStore(const StoreInst &I) {
MemVT.getStoreSize(), I.getAlignment(), AAMDNodes(),
nullptr, SSID, Ordering);
SDValue Val = DAG.getPtrExtOrTrunc(getValue(I.getValueOperand()), dl, MemVT);
SDValue Val = getValue(I.getValueOperand());
if (Val.getValueType() != MemVT)
Val = DAG.getPtrExtOrTrunc(Val, dl, MemVT);
SDValue OutChain = DAG.getAtomic(ISD::ATOMIC_STORE, dl, MemVT, InChain,
getValue(I.getPointerOperand()), Val, MMO);

View File

@ -59,7 +59,7 @@ define void @volatile(i8* %a, i16* %b, i32* %c, i64* %d) local_unnamed_addr {
}
; CHECK-LABEL: monotonic
define void @monotonic(i8* %a, i16* %b, i32* %c, i64* %d) local_unnamed_addr {
define void @monotonic(i8* %a, i16* %b, i32* %c, i64* %d, float* %e) local_unnamed_addr {
; CHECK: ld.volatile.u8 %rs{{[0-9]+}}, [%rd{{[0-9]+}}]
%a.load = load atomic i8, i8* %a monotonic, align 1
%a.add = add i8 %a.load, 1
@ -84,5 +84,11 @@ define void @monotonic(i8* %a, i16* %b, i32* %c, i64* %d) local_unnamed_addr {
; CHECK: st.volatile.u64 [%rd{{[0-9]+}}], %rd{{[0-9]+}}
store atomic i64 %d.add, i64* %d monotonic, align 8
; CHECK: ld.volatile.f32 %f{{[0-9]+}}, [%rd{{[0-9]+}}]
%e.load = load atomic float, float* %e monotonic, align 4
%e.add = fadd float %e.load, 1.0
; CHECK: st.volatile.f32 [%rd{{[0-9]+}}], %f{{[0-9]+}}
store atomic float %e.add, float* %e monotonic, align 4
ret void
}