}
Optional<int> CSRSpillFI;
- if (FrameInfo.hasCalls() && CSRegs && isCalleeSavedReg(CSRegs, LaneVGPR)) {
- // TODO: Should this be a CreateSpillStackObject? This is technically a
- // weird CSR spill.
- CSRSpillFI = FrameInfo.CreateStackObject(4, 4, false);
+ if ((FrameInfo.hasCalls() || !isEntryFunction()) && CSRegs &&
+ isCalleeSavedReg(CSRegs, LaneVGPR)) {
+ CSRSpillFI = FrameInfo.CreateSpillStackObject(4, 4);
}
SpillVGPRs.push_back(SGPRSpillVGPRCSR(LaneVGPR, CSRSpillFI));
declare void @external_void_func_void() #0
+; Make sure if a CSR vgpr is used for SGPR spilling, it is saved and restored
+; GCN-LABEL: {{^}}callee_func_sgpr_spill_no_calls:
+; GCN: buffer_store_dword v32, off, s[0:3], s5 offset:4 ; 4-byte Folded Spill
+; GCN: v_writelane_b32 v32
+; GCN: ;;#ASMSTART
+; GCN: v_readlane_b32 s{{[0-9]+}}, v32
+; GCN: buffer_load_dword v32, off, s[0:3], s5 offset:4 ; 4-byte Folded Reload
+; GCN-NEXT: s_waitcnt
+; GCN-NEXT: s_setpc_b64
+define void @callee_func_sgpr_spill_no_calls(i32 %in) #0 {
+ call void asm sideeffect "", "~{v0},~{v1},~{v2},~{v3},~{v4},~{v5},~{v6},~{v7}"() #0
+ call void asm sideeffect "", "~{v8},~{v9},~{v10},~{v11},~{v12},~{v13},~{v14},~{v15}"() #0
+ call void asm sideeffect "", "~{v16},~{v17},~{v18},~{v19},~{v20},~{v21},~{v22},~{v23}"() #0
+ call void asm sideeffect "", "~{v24},~{v25},~{v26},~{v27},~{v28},~{v29},~{v30},~{v31}"() #0
+
+ %wide.sgpr0 = call <16 x i32> asm sideeffect "; def $0", "=s" () #0
+ %wide.sgpr1 = call <16 x i32> asm sideeffect "; def $0", "=s" () #0
+ %wide.sgpr2 = call <16 x i32> asm sideeffect "; def $0", "=s" () #0
+ %wide.sgpr5 = call <16 x i32> asm sideeffect "; def $0", "=s" () #0
+ %wide.sgpr3 = call <8 x i32> asm sideeffect "; def $0", "=s" () #0
+ %wide.sgpr4 = call <2 x i32> asm sideeffect "; def $0", "=s" () #0
+
+ call void asm sideeffect "; use $0", "s"(<16 x i32> %wide.sgpr0) #0
+ call void asm sideeffect "; use $0", "s"(<16 x i32> %wide.sgpr1) #0
+ call void asm sideeffect "; use $0", "s"(<16 x i32> %wide.sgpr2) #0
+ call void asm sideeffect "; use $0", "s"(<8 x i32> %wide.sgpr3) #0
+ call void asm sideeffect "; use $0", "s"(<2 x i32> %wide.sgpr4) #0
+ call void asm sideeffect "; use $0", "s"(<16 x i32> %wide.sgpr5) #0
+ ret void
+}
+
attributes #0 = { nounwind }
attributes #1 = { nounwind "no-frame-pointer-elim"="true" }