38 lines
1.7 KiB
LLVM
38 lines
1.7 KiB
LLVM
; RUN: llc -march=amdgcn -mcpu=gfx900 -verify-machineinstrs -amdgpu-spill-sgpr-to-vgpr=true < %s | FileCheck -check-prefixes=GCN,SPILL-TO-VGPR %s
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; RUN: llc -march=amdgcn -mcpu=gfx900 -verify-machineinstrs -amdgpu-spill-sgpr-to-vgpr=false < %s | FileCheck -check-prefixes=GCN,NO-SPILL-TO-VGPR %s
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; Check frame setup where SGPR spills to VGPRs are disabled or enabled.
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declare hidden void @external_void_func_void() #0
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; GCN-LABEL: {{^}}callee_with_stack_and_call:
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; SPILL-TO-VGPR: buffer_store_dword v40, off, s[0:3], s32 offset:4 ; 4-byte Folded Spill
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; SPILL-TO-VGPR: v_writelane_b32 v40, s33, 2
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; SPILL-TO-VGPR: v_writelane_b32 v40, s30, 0
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; SPILL-TO-VGPR: v_writelane_b32 v40, s31, 1
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; NO-SPILL-TO-VGPR: v_mov_b32_e32 v0, s33
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; NO-SPILL-TO-VGPR: buffer_store_dword v0, off, s[0:3], s32 offset:12 ; 4-byte Folded Spill
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; NO-SPILL-TO-VGPR: v_writelane_b32 v1, s30, 0
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; NO-SPILL-TO-VGPR: v_writelane_b32 v1, s31, 1
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; NO-SPILL-TO-VGPR: buffer_store_dword v1, off, s[0:3], s33 offset:4 ; 4-byte Folded Spill
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; GCN: s_swappc_b64 s[30:31], s[4:5]
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; SPILL-TO-VGPR: v_readlane_b32 s4, v40, 0
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; SPILL-TO-VGPR: v_readlane_b32 s5, v40, 1
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; NO-SPILL-TO-VGPR: buffer_load_dword v1, off, s[0:3], s33 offset:4 ; 4-byte Folded Reload
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; NO-SPILL-TO-VGPR: v_readlane_b32 s4, v1, 0
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; NO-SPILL-TO-VGPR: v_readlane_b32 s5, v1, 1
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; SPILL-TO-VGPR: v_readlane_b32 s33, v40, 2
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; NO-SPILL-TO-VGPR: buffer_load_dword v0, off, s[0:3], s32 offset:12 ; 4-byte Folded Reload
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; NO-SPILL-TO-VGPR: v_readfirstlane_b32 s33, v0
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define void @callee_with_stack_and_call() #0 {
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%alloca = alloca i32, addrspace(5)
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store volatile i32 0, i32 addrspace(5)* %alloca
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call void @external_void_func_void()
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ret void
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}
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attributes #0 = { nounwind }
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