729bf9b26b
Code using indirect calls is broken without this, and there isn't really much value in supporting the old attempt to vary the argument placement based on uses. This resulted in more argument shuffling code anyway. Also have the option stop implying all inputs need to be passed. This will no rely on the amdgpu-no-* attributes to avoid passing unnecessary values.
171 lines
8.9 KiB
LLVM
171 lines
8.9 KiB
LLVM
; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 -verify-machineinstrs < %s | FileCheck -check-prefixes=GFX9 %s
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; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx1010 -verify-machineinstrs < %s | FileCheck -check-prefixes=GFX10 %s
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declare void @extern_func() #2
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define <4 x float> @non_preserved_vgpr_tuple8(<8 x i32> %rsrc, <4 x i32> %samp, float %bias, float %zcompare, float %s, float %t, float %clamp) {
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; The vgpr tuple8 operand in image_gather4_c_b_cl instruction needs not be
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; preserved across the call and should get 8 scratch registers.
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; GFX9-LABEL: non_preserved_vgpr_tuple8:
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; GFX9: buffer_store_dword v40, off, s[0:3], s32 offset:16 ; 4-byte Folded Spill
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; GFX9: v_mov_b32_e32 v36, v16
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; GFX9-NEXT: v_mov_b32_e32 v35, v15
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; GFX9-NEXT: v_mov_b32_e32 v34, v14
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; GFX9-NEXT: v_mov_b32_e32 v33, v13
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; GFX9-NEXT: v_mov_b32_e32 v32, v12
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; GFX9: buffer_store_dword v41, off, s[0:3], s33 offset:12 ; 4-byte Folded Spill
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; GFX9-NEXT: buffer_store_dword v42, off, s[0:3], s33 offset:8 ; 4-byte Folded Spill
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; GFX9-NEXT: buffer_store_dword v43, off, s[0:3], s33 offset:4 ; 4-byte Folded Spill
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; GFX9-NEXT: buffer_store_dword v44, off, s[0:3], s33 ; 4-byte Folded Spill
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; GFX9: ;;#ASMSTART
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; GFX9-NEXT: ;;#ASMEND
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; GFX9: image_gather4_c_b_cl v[41:44], v[32:36], s[4:11], s[4:7] dmask:0x1
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; GFX9-NEXT: s_addk_i32 s32, 0x800
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; GFX9-NEXT: s_getpc_b64 s[4:5]
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; GFX9-NEXT: s_add_u32 s4, s4, extern_func@gotpcrel32@lo+4
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; GFX9-NEXT: s_addc_u32 s5, s5, extern_func@gotpcrel32@hi+12
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; GFX9-NEXT: s_load_dwordx2 s[4:5], s[4:5], 0x0
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; GFX9-NEXT: v_writelane_b32 v40, s30, 0
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; GFX9: s_waitcnt lgkmcnt(0)
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; GFX9-NEXT: s_swappc_b64 s[30:31], s[4:5]
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; GFX9: buffer_load_dword v44, off, s[0:3], s33 ; 4-byte Folded Reload
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; GFX9-NEXT: buffer_load_dword v43, off, s[0:3], s33 offset:4 ; 4-byte Folded Reload
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; GFX9-NEXT: buffer_load_dword v42, off, s[0:3], s33 offset:8 ; 4-byte Folded Reload
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; GFX9-NEXT: buffer_load_dword v41, off, s[0:3], s33 offset:12 ; 4-byte Folded Reload
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; GFX9: buffer_load_dword v40, off, s[0:3], s32 offset:16 ; 4-byte Folded Reload
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; GFX9: s_setpc_b64 s[4:5]
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;
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; GFX10-LABEL: non_preserved_vgpr_tuple8:
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; GFX10: buffer_store_dword v40, off, s[0:3], s32 offset:16 ; 4-byte Folded Spill
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; GFX10: v_mov_b32_e32 v36, v16
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; GFX10-NEXT: v_mov_b32_e32 v35, v15
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; GFX10-NEXT: v_mov_b32_e32 v34, v14
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; GFX10-NEXT: v_mov_b32_e32 v33, v13
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; GFX10-NEXT: v_mov_b32_e32 v32, v12
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; GFX10: buffer_store_dword v41, off, s[0:3], s33 offset:12 ; 4-byte Folded Spill
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; GFX10-NEXT: buffer_store_dword v42, off, s[0:3], s33 offset:8 ; 4-byte Folded Spill
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; GFX10-NEXT: buffer_store_dword v43, off, s[0:3], s33 offset:4 ; 4-byte Folded Spill
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; GFX10-NEXT: buffer_store_dword v44, off, s[0:3], s33 ; 4-byte Folded Spill
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; GFX10: ;;#ASMSTART
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; GFX10-NEXT: ;;#ASMEND
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; GFX10: image_gather4_c_b_cl v[41:44], v[32:36], s[4:11], s[4:7] dmask:0x1 dim:SQ_RSRC_IMG_2D
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; GFX10-NEXT: s_addk_i32 s32, 0x400
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; GFX10-NEXT: s_waitcnt_depctr 0xffe3
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; GFX10-NEXT: s_getpc_b64 s[4:5]
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; GFX10-NEXT: s_add_u32 s4, s4, extern_func@gotpcrel32@lo+4
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; GFX10-NEXT: s_addc_u32 s5, s5, extern_func@gotpcrel32@hi+12
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; GFX10: s_load_dwordx2 s[4:5], s[4:5], 0x0
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; GFX10: s_waitcnt lgkmcnt(0)
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; GFX10-NEXT: s_swappc_b64 s[30:31], s[4:5]
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; GFX10: buffer_load_dword v44, off, s[0:3], s33
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; GFX10-NEXT: buffer_load_dword v43, off, s[0:3], s33 offset:4
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; GFX10-NEXT: buffer_load_dword v42, off, s[0:3], s33 offset:8
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; GFX10-NEXT: buffer_load_dword v41, off, s[0:3], s33 offset:12
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; GFX10: buffer_load_dword v40, off, s[0:3], s32 offset:16 ; 4-byte Folded Reload
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; GFX10: s_setpc_b64 s[4:5]
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main_body:
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call void asm sideeffect "", "~{v0},~{v1},~{v2},~{v3},~{v4},~{v5},~{v6},~{v7}"() #0
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call void asm sideeffect "", "~{v8},~{v9},~{v10},~{v11},~{v12},~{v13},~{v14},~{v15}"() #0
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call void asm sideeffect "", "~{v16},~{v17},~{v18},~{v19},~{v20},~{v21},~{v22},~{v23}"() #0
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call void asm sideeffect "", "~{v24},~{v25},~{v26},~{v27},~{v28},~{v29},~{v30},~{v31}"() #0
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%v = call <4 x float> @llvm.amdgcn.image.gather4.c.b.cl.2d.v4f32.f32.f32(i32 1, float %bias, float %zcompare, float %s, float %t, float %clamp, <8 x i32> undef, <4 x i32> undef, i1 false, i32 0, i32 0)
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call void @extern_func()
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ret <4 x float> %v
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}
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define <4 x float> @call_preserved_vgpr_tuple8(<8 x i32> %rsrc, <4 x i32> %samp, float %bias, float %zcompare, float %s, float %t, float %clamp) {
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; The vgpr tuple8 operand in image_gather4_c_b_cl instruction needs to be preserved
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; across the call and should get allcoated to 8 CSRs.
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; Only the lower 5 sub-registers of the tuple are preserved.
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; The upper 3 sub-registers are unused.
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; GFX9-LABEL: call_preserved_vgpr_tuple8:
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; GFX9: buffer_store_dword v40, off, s[0:3], s32 offset:20 ; 4-byte Folded Spill
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; GFX9: buffer_store_dword v41, off, s[0:3], s33 offset:16 ; 4-byte Folded Spill
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; GFX9-NEXT: buffer_store_dword v42, off, s[0:3], s33 offset:12 ; 4-byte Folded Spill
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; GFX9-NEXT: buffer_store_dword v43, off, s[0:3], s33 offset:8 ; 4-byte Folded Spill
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; GFX9-NEXT: buffer_store_dword v44, off, s[0:3], s33 offset:4 ; 4-byte Folded Spill
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; GFX9-NEXT: buffer_store_dword v45, off, s[0:3], s33 ; 4-byte Folded Spill
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; GFX9: v_mov_b32_e32 v45, v16
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; GFX9-NEXT: v_mov_b32_e32 v44, v15
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; GFX9-NEXT: v_mov_b32_e32 v43, v14
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; GFX9-NEXT: v_mov_b32_e32 v42, v13
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; GFX9-NEXT: v_mov_b32_e32 v41, v12
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; GFX9: image_gather4_c_b_cl v[0:3], v[41:45], s[36:43], s[4:7] dmask:0x1
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; GFX9-NEXT: s_addk_i32 s32, 0x800
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; GFX9-NEXT: s_getpc_b64 s[4:5]
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; GFX9-NEXT: s_add_u32 s4, s4, extern_func@gotpcrel32@lo+4
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; GFX9-NEXT: s_addc_u32 s5, s5, extern_func@gotpcrel32@hi+12
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; GFX9-NEXT: s_load_dwordx2 s[4:5], s[4:5], 0x0
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; GFX9: s_waitcnt vmcnt(0)
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; GFX9-NEXT: global_store_dwordx4 v[0:1], v[0:3], off
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; GFX9-NEXT: s_waitcnt lgkmcnt(0)
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; GFX9-NEXT: s_swappc_b64 s[30:31], s[4:5]
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; GFX9-NEXT: image_gather4_c_b_cl v[0:3], v[41:45], s[36:43], s[4:7] dmask:0x1
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; GFX9: buffer_load_dword v45, off, s[0:3], s33 ; 4-byte Folded Reload
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; GFX9-NEXT: buffer_load_dword v44, off, s[0:3], s33 offset:4 ; 4-byte Folded Reload
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; GFX9-NEXT: buffer_load_dword v43, off, s[0:3], s33 offset:8 ; 4-byte Folded Reload
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; GFX9-NEXT: buffer_load_dword v42, off, s[0:3], s33 offset:12 ; 4-byte Folded Reload
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; GFX9-NEXT: buffer_load_dword v41, off, s[0:3], s33 offset:16 ; 4-byte Folded Reload
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; GFX9: buffer_load_dword v40, off, s[0:3], s32 offset:20 ; 4-byte Folded Reload
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; GFX9: s_setpc_b64 s[4:5]
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;
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; GFX10-LABEL: call_preserved_vgpr_tuple8:
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; GFX10: buffer_store_dword v40, off, s[0:3], s32 offset:20 ; 4-byte Folded Spill
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; GFX10: buffer_store_dword v41, off, s[0:3], s33 offset:16 ; 4-byte Folded Spill
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; GFX10-NEXT: buffer_store_dword v42, off, s[0:3], s33 offset:12 ; 4-byte Folded Spill
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; GFX10-NEXT: buffer_store_dword v43, off, s[0:3], s33 offset:8 ; 4-byte Folded Spill
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; GFX10-NEXT: buffer_store_dword v44, off, s[0:3], s33 offset:4 ; 4-byte Folded Spill
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; GFX10-NEXT: buffer_store_dword v45, off, s[0:3], s33 ; 4-byte Folded Spill
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; GFX10: image_gather4_c_b_cl v[0:3], v[12:16], s[36:43], s[4:7] dmask:0x1 dim:SQ_RSRC_IMG_2D
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; GFX10-NEXT: s_waitcnt_depctr 0xffe3
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; GFX10-NEXT: s_getpc_b64 s[4:5]
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; GFX10-NEXT: s_add_u32 s4, s4, extern_func@gotpcrel32@lo+4
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; GFX10-NEXT: s_addc_u32 s5, s5, extern_func@gotpcrel32@hi+12
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; GFX10-NEXT: v_writelane_b32 v40, s30, 8
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; GFX10-NEXT: s_load_dwordx2 s[4:5], s[4:5], 0x0
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; GFX10-NEXT: v_writelane_b32 v40, s31, 9
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; GFX10-NEXT: s_waitcnt vmcnt(0)
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; GFX10-NEXT: global_store_dwordx4 v[0:1], v[0:3], off
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; GFX10-NEXT: s_waitcnt lgkmcnt(0)
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; GFX10-NEXT: s_swappc_b64 s[30:31], s[4:5]
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; GFX10-NEXT: image_gather4_c_b_cl v[0:3], [v45, v44, v43, v42, v41], s[36:43], s[4:7] dmask:0x1 dim:SQ_RSRC_IMG_2D
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; GFX10: buffer_load_dword v45, off, s[0:3], s33{{$}}
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; GFX10-NEXT: buffer_load_dword v44, off, s[0:3], s33 offset:4
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; GFX10-NEXT: buffer_load_dword v43, off, s[0:3], s33 offset:8
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; GFX10-NEXT: buffer_load_dword v42, off, s[0:3], s33 offset:12
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; GFX10-NEXT: buffer_load_dword v41, off, s[0:3], s33 offset:16
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; GFX10: buffer_load_dword v40, off, s[0:3], s32 offset:20
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; GFX10: s_setpc_b64 s[4:5]
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main_body:
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%v = call <4 x float> @llvm.amdgcn.image.gather4.c.b.cl.2d.v4f32.f32.f32(i32 1, float %bias, float %zcompare, float %s, float %t, float %clamp, <8 x i32> undef, <4 x i32> undef, i1 false, i32 0, i32 0)
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store <4 x float> %v, <4 x float> addrspace(1)* undef
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call void @extern_func()
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%v1 = call <4 x float> @llvm.amdgcn.image.gather4.c.b.cl.2d.v4f32.f32.f32(i32 1, float %bias, float %zcompare, float %s, float %t, float %clamp, <8 x i32> undef, <4 x i32> undef, i1 false, i32 0, i32 0)
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ret <4 x float> %v1
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}
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declare <4 x float> @llvm.amdgcn.image.gather4.c.b.cl.2d.v4f32.f32.f32(i32 immarg, float, float, float, float, float, <8 x i32>, <4 x i32>, i1 immarg, i32 immarg, i32 immarg) #1
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attributes #0 = { nounwind writeonly }
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attributes #1 = { nounwind readonly }
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attributes #2 = { "amdgpu-no-dispatch-id" "amdgpu-no-dispatch-ptr" "amdgpu-no-implicitarg-ptr" "amdgpu-no-queue-ptr" "amdgpu-no-workgroup-id-x" "amdgpu-no-workgroup-id-y" "amdgpu-no-workgroup-id-z" "amdgpu-no-workitem-id-x" "amdgpu-no-workitem-id-y" "amdgpu-no-workitem-id-z" }
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