Juan Manuel Martinez Caamaño 52ea06f884
[SPIRV] Add tests documenting incorrect lowering of load/store atomic (#185628)
This patch only adds the tests documenting the broken behavior, but does
not fix them.
2026-03-11 09:40:10 +01:00

122 lines
4.6 KiB
LLVM

; RUN: llc -O0 -mtriple=spirv64-- %s -o - | FileCheck %s
; RUN: %if spirv-tools %{ llc -O0 -mtriple=spirv64-- %s -o - -filetype=obj | spirv-val %}
; RUN: llc -O0 -mtriple=spirv32-- %s -o - | FileCheck %s
; RUN: %if spirv-tools %{ llc -O0 -mtriple=spirv32-- %s -o - -filetype=obj | spirv-val %}
;; Check that 'store atomic' LLVM IR instructions are lowered.
;; NOTE: The current lowering is incorrect: 'store atomic' should produce
;; OpAtomicStore but currently produces OpStore, silently dropping the atomic
;; ordering. This test documents the broken behaviour so it can be fixed.
; CHECK-DAG: %[[#Int32:]] = OpTypeInt 32 0
; CHECK-DAG: %[[#Float:]] = OpTypeFloat 32
; CHECK-DAG: %[[#Int32Vec:]] = OpTypeVector %[[#Int32]] 2
define void @store_i32_unordered(ptr addrspace(1) %ptr, i32 %val) {
; CHECK-LABEL: OpFunction %[[#]]
; CHECK: %[[#ptr:]] = OpFunctionParameter %[[#]]
; CHECK: %[[#val:]] = OpFunctionParameter %[[#Int32]]
; CHECK: OpStore %[[#ptr]] %[[#val]] Aligned 4
; CHECK: OpReturn
store atomic i32 %val, ptr addrspace(1) %ptr unordered, align 4
ret void
}
define void @store_i32_monotonic(ptr addrspace(1) %ptr, i32 %val) {
; CHECK-LABEL: OpFunction %[[#]]
; CHECK: %[[#ptr:]] = OpFunctionParameter %[[#]]
; CHECK: %[[#val:]] = OpFunctionParameter %[[#Int32]]
; CHECK: OpStore %[[#ptr]] %[[#val]] Aligned 4
; CHECK: OpReturn
store atomic i32 %val, ptr addrspace(1) %ptr monotonic, align 4
ret void
}
define void @store_i32_release(ptr addrspace(1) %ptr, i32 %val) {
; CHECK-LABEL: OpFunction %[[#]]
; CHECK: %[[#ptr:]] = OpFunctionParameter %[[#]]
; CHECK: %[[#val:]] = OpFunctionParameter %[[#Int32]]
; CHECK: OpStore %[[#ptr]] %[[#val]] Aligned 4
; CHECK: OpReturn
store atomic i32 %val, ptr addrspace(1) %ptr release, align 4
ret void
}
define void @store_i32_seq_cst(ptr addrspace(1) %ptr, i32 %val) {
; CHECK-LABEL: OpFunction %[[#]]
; CHECK: %[[#ptr:]] = OpFunctionParameter %[[#]]
; CHECK: %[[#val:]] = OpFunctionParameter %[[#Int32]]
; CHECK: OpStore %[[#ptr]] %[[#val]] Aligned 4
; CHECK: OpReturn
store atomic i32 %val, ptr addrspace(1) %ptr seq_cst, align 4
ret void
}
; -- test with different syncscopes
define void @store_i32_release_singlethread(ptr addrspace(1) %ptr, i32 %val) {
; CHECK-LABEL: OpFunction %[[#]]
; CHECK: %[[#ptr:]] = OpFunctionParameter %[[#]]
; CHECK: %[[#val:]] = OpFunctionParameter %[[#Int32]]
; CHECK: OpStore %[[#ptr]] %[[#val]] Aligned 4
; CHECK: OpReturn
store atomic i32 %val, ptr addrspace(1) %ptr syncscope("singlethread") release, align 4
ret void
}
define void @store_i32_release_subgroup(ptr addrspace(1) %ptr, i32 %val) {
; CHECK-LABEL: OpFunction %[[#]]
; CHECK: %[[#ptr:]] = OpFunctionParameter %[[#]]
; CHECK: %[[#val:]] = OpFunctionParameter %[[#Int32]]
; CHECK: OpStore %[[#ptr]] %[[#val]] Aligned 4
; CHECK: OpReturn
store atomic i32 %val, ptr addrspace(1) %ptr syncscope("subgroup") release, align 4
ret void
}
define void @store_i32_release_workgroup(ptr addrspace(1) %ptr, i32 %val) {
; CHECK-LABEL: OpFunction %[[#]]
; CHECK: %[[#ptr:]] = OpFunctionParameter %[[#]]
; CHECK: %[[#val:]] = OpFunctionParameter %[[#Int32]]
; CHECK: OpStore %[[#ptr]] %[[#val]] Aligned 4
; CHECK: OpReturn
store atomic i32 %val, ptr addrspace(1) %ptr syncscope("workgroup") release, align 4
ret void
}
define void @store_i32_release_device(ptr addrspace(1) %ptr, i32 %val) {
; CHECK-LABEL: OpFunction %[[#]]
; CHECK: %[[#ptr:]] = OpFunctionParameter %[[#]]
; CHECK: %[[#val:]] = OpFunctionParameter %[[#Int32]]
; CHECK: OpStore %[[#ptr]] %[[#val]] Aligned 4
; CHECK: OpReturn
store atomic i32 %val, ptr addrspace(1) %ptr syncscope("device") release, align 4
ret void
}
; -- test with a different scalar type
define void @store_float_release(ptr addrspace(1) %ptr, float %val) {
; CHECK-LABEL: OpFunction %[[#]]
; CHECK: %[[#ptr:]] = OpFunctionParameter %[[#]]
; CHECK: %[[#val:]] = OpFunctionParameter %[[#Float]]
; CHECK: %[[#cast:]] = OpBitcast %[[#Int32]] %[[#val]]
; CHECK: OpStore %[[#ptr]] %[[#cast]] Aligned 8
; CHECK: OpReturn
store atomic float %val, ptr addrspace(1) %ptr release, align 8
ret void
}
; -- test with a vector type
define void @store_vector_release(ptr addrspace(1) %ptr, <2 x i32> %val) {
; CHECK-LABEL: OpFunction %[[#]]
; CHECK: %[[#ptr:]] = OpFunctionParameter %[[#]]
; CHECK: %[[#val:]] = OpFunctionParameter %[[#Int32Vec]]
; CHECK: OpStore %[[#ptr]] %[[#val]] Aligned 8
; CHECK: OpReturn
store atomic <2 x i32> %val, ptr addrspace(1) %ptr release, align 8
ret void
}