c897c13dde
Converts AMDGPUResourceUsageAnalysis pass from Module to MachineFunction pass. Moves function resource info propagation to to MC layer (through helpers in AMDGPUMCResourceInfo) by generating MCExprs for every function resource which the emitters have been prepped for. Fixes https://github.com/llvm/llvm-project/issues/64863
137 lines
3.4 KiB
LLVM
137 lines
3.4 KiB
LLVM
; RUN: llc -mtriple=amdgcn-amd-amdhsa -verify-machineinstrs -enable-ipra < %s | FileCheck -check-prefix=GCN %s
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; RUN: llc -mtriple=amdgcn-amd-amdhsa -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s
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; Kernels are not called, so there is no call preserved mask.
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; GCN-LABEL: {{^}}kernel:
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; GCN: flat_store_dword
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define amdgpu_kernel void @kernel(ptr addrspace(1) %out) #0 {
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entry:
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store i32 0, ptr addrspace(1) %out
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ret void
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}
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; GCN-LABEL: {{^}}func:
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; GCN: ; NumVgprs: 8
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define hidden void @func() #1 {
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call void asm sideeffect "", "~{v0},~{v1},~{v2},~{v3},~{v4},~{v5},~{v6},~{v7}"() #0
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ret void
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}
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; GCN-LABEL: {{^}}kernel_call:
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; GCN-NOT: buffer_store
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; GCN-NOT: buffer_load
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; GCN-NOT: readlane
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; GCN-NOT: writelane
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; GCN: flat_load_dword v8
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; GCN: s_swappc_b64
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; GCN-NOT: buffer_store
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; GCN-NOT: buffer_load
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; GCN-NOT: readlane
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; GCN-NOT: writelane
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; GCN: flat_store_dword v{{\[[0-9]+:[0-9]+\]}}, v8
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; GCN: ; TotalNumSgprs: 37
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; GCN: ; NumVgprs: 9
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define amdgpu_kernel void @kernel_call() #0 {
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%vgpr = load volatile i32, ptr addrspace(1) undef
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tail call void @func()
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store volatile i32 %vgpr, ptr addrspace(1) undef
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ret void
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}
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; GCN-LABEL: {{^}}func_regular_call:
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; GCN-NOT: buffer_load
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; GCN-NOT: readlane
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; GCN: flat_load_dword v8
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; GCN: s_swappc_b64
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; GCN-NOT: buffer_load
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; GCN-NOT: readlane
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; GCN: flat_store_dword v{{\[[0-9]+:[0-9]+\]}}, v8
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; GCN: ; TotalNumSgprs: 34
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; GCN: ; NumVgprs: 10
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define void @func_regular_call() #1 {
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%vgpr = load volatile i32, ptr addrspace(1) undef
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tail call void @func()
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store volatile i32 %vgpr, ptr addrspace(1) undef
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ret void
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}
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; GCN-LABEL: {{^}}func_tail_call:
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; GCN: s_waitcnt
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; GCN-NEXT: s_getpc_b64 s[16:17]
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; GCN-NEXT: s_add_u32 s16,
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; GCN-NEXT: s_addc_u32 s17,
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; GCN-NEXT: s_setpc_b64 s[16:17]
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; GCN: ; TotalNumSgprs: 32
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; GCN: ; NumVgprs: 8
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define void @func_tail_call() #1 {
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tail call void @func()
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ret void
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}
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; GCN-LABEL: {{^}}func_call_tail_call:
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; GCN: flat_load_dword v8
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; GCN: s_swappc_b64
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; GCN: flat_store_dword v{{\[[0-9]+:[0-9]+\]}}, v8
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; GCN: s_setpc_b64
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; GCN: ; TotalNumSgprs: 34
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; GCN: ; NumVgprs: 10
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define void @func_call_tail_call() #1 {
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%vgpr = load volatile i32, ptr addrspace(1) undef
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tail call void @func()
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store volatile i32 %vgpr, ptr addrspace(1) undef
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tail call void @func()
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ret void
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}
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; GCN-LABEL: {{^}}void_func_void:
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define void @void_func_void() noinline {
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ret void
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}
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; Make sure we don't get save/restore of FP between calls.
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; GCN-LABEL: {{^}}test_funcx2:
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; GCN: s_getpc_b64
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; GCN-NOT: s32
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; GCN: s_swappc_b64
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; GCN-NOT: s32
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; GCN: s_swappc_b64
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define void @test_funcx2() #0 {
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call void @void_func_void()
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call void @void_func_void()
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ret void
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}
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; Make sure we save/restore the return address around the call.
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; Function Attrs: norecurse
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define internal void @hoge() #2 {
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bb:
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; GCN-LABEL: {{^}}hoge:
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; GCN-DAG: v_writelane_b32 [[CSR_VGPR:v[0-9]+]], s30,
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; GCN-DAG: v_writelane_b32 [[CSR_VGPR]], s31,
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; GCN: s_swappc_b64 s[30:31]
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; GCN-DAG: v_readlane_b32 s30, [[CSR_VGPR]],
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; GCN-DAG: v_readlane_b32 s31, [[CSR_VGPR]],
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; GCN: s_waitcnt vmcnt(0)
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; GCN: s_setpc_b64 s[30:31]
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call void @eggs()
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ret void
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}
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; GCN-LABEL: {{^}}wombat:
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define weak amdgpu_kernel void @wombat(ptr %arg, ptr %arg2) {
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bb:
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call void @hoge() #0
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ret void
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}
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declare dso_local void @eggs()
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attributes #0 = { nounwind }
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attributes #1 = { nounwind noinline "amdgpu-no-workitem-id-x" "amdgpu-no-workitem-id-y" "amdgpu-no-workitem-id-z" }
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attributes #2 = { norecurse }
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