110 lines
2.7 KiB
LLVM
110 lines
2.7 KiB
LLVM
; RUN: llc -mtriple=amdgcn-amd-amdhsa -verify-machineinstrs -enable-ipra -amdgpu-sroa=0 < %s | FileCheck -check-prefix=GCN %s
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; RUN: llc -mtriple=amdgcn-amd-amdhsa -verify-machineinstrs -amdgpu-sroa=0 < %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(i32 addrspace(1)* %out) #0 {
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entry:
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store i32 0, i32 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 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: ; NumSgprs: 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, i32 addrspace(1)* undef
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tail call void @func()
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store volatile i32 %vgpr, i32 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_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: ; NumSgprs: 32
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; GCN: ; NumVgprs: 9
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define void @func_regular_call() #1 {
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%vgpr = load volatile i32, i32 addrspace(1)* undef
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tail call void @func()
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store volatile i32 %vgpr, i32 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[6:7]
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; GCN-NEXT: s_add_u32 s6,
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; GCN-NEXT: s_addc_u32 s7,
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; GCN-NEXT: s_setpc_b64 s[6:7]
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; GCN: ; NumSgprs: 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: ; NumSgprs: 32
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; GCN: ; NumVgprs: 9
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define void @func_call_tail_call() #1 {
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%vgpr = load volatile i32, i32 addrspace(1)* undef
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tail call void @func()
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store volatile i32 %vgpr, i32 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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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-NOT: s5
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; GCN-NOT: s32
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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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attributes #0 = { nounwind }
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attributes #1 = { nounwind noinline }
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