722b8e0e5a
Previously we assumed all callable functions did not need any implicitly passed inputs, and added attributes to functions to indicate when they were necessary. Requiring attributes for correctness is pretty ugly, and it makes supporting indirect and external calls more complicated. This inverts the direction of the attributes, so an undecorated function is assumed to need all implicit imputs. This enables AMDGPUAttributor by default to mark when functions are proven to not need a given input. This strips the equivalent functionality from the legacy AMDGPUAnnotateKernelFeatures pass. However, AMDGPUAnnotateKernelFeatures is not fully removed at this point although it should be in the future. It is still necessary for the two hacky amdgpu-calls and amdgpu-stack-objects attributes, which would be better served by a trivial analysis on the IR during selection. Additionally, AMDGPUAnnotateKernelFeatures still redundantly handles the uniform-work-group-size attribute to be removed in a future commit. At this point when not using -amdgpu-fixed-function-abi, we are still modifying the ABI based on these newly negated attributes. In the future, this option will be removed and the locations for implicit inputs will always be fixed. We will then use the new attributes to avoid passing the values when unnecessary.
102 lines
4.9 KiB
LLVM
102 lines
4.9 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
|
|
; RUN: llc < %s -march=amdgcn -mcpu=gfx1010 -verify-machineinstrs | FileCheck -check-prefix=MUBUF %s
|
|
; RUN: llc < %s -march=amdgcn -mcpu=gfx1010 -amdgpu-enable-flat-scratch -verify-machineinstrs | FileCheck -check-prefix=FLATSCR %s
|
|
|
|
; During instruction selection, we use immediate const zero for soffset in
|
|
; MUBUF stack accesses and let eliminateFrameIndex to fix up this field to use
|
|
; the correct frame register whenever required.
|
|
define amdgpu_kernel void @kernel_background_evaluate(float addrspace(5)* %kg, <4 x i32> addrspace(1)* %input, <4 x float> addrspace(1)* %output, i32 %i) {
|
|
; MUBUF-LABEL: kernel_background_evaluate:
|
|
; MUBUF: ; %bb.0: ; %entry
|
|
; MUBUF-NEXT: s_load_dword s0, s[4:5], 0x24
|
|
; MUBUF-NEXT: s_mov_b32 s36, SCRATCH_RSRC_DWORD0
|
|
; MUBUF-NEXT: s_mov_b32 s37, SCRATCH_RSRC_DWORD1
|
|
; MUBUF-NEXT: s_mov_b32 s38, -1
|
|
; MUBUF-NEXT: s_mov_b32 s39, 0x31c16000
|
|
; MUBUF-NEXT: s_add_u32 s36, s36, s11
|
|
; MUBUF-NEXT: s_addc_u32 s37, s37, 0
|
|
; MUBUF-NEXT: v_mov_b32_e32 v1, 0x2000
|
|
; MUBUF-NEXT: v_mov_b32_e32 v2, 0x4000
|
|
; MUBUF-NEXT: v_mov_b32_e32 v3, 0
|
|
; MUBUF-NEXT: v_mov_b32_e32 v4, 0x400000
|
|
; MUBUF-NEXT: s_mov_b32 s32, 0xc0000
|
|
; MUBUF-NEXT: v_add_nc_u32_e64 v40, 4, 0x4000
|
|
; MUBUF-NEXT: s_getpc_b64 s[4:5]
|
|
; MUBUF-NEXT: s_add_u32 s4, s4, svm_eval_nodes@rel32@lo+4
|
|
; MUBUF-NEXT: s_addc_u32 s5, s5, svm_eval_nodes@rel32@hi+12
|
|
; MUBUF-NEXT: s_waitcnt lgkmcnt(0)
|
|
; MUBUF-NEXT: v_mov_b32_e32 v0, s0
|
|
; MUBUF-NEXT: s_mov_b64 s[0:1], s[36:37]
|
|
; MUBUF-NEXT: s_mov_b64 s[2:3], s[38:39]
|
|
; MUBUF-NEXT: s_swappc_b64 s[30:31], s[4:5]
|
|
; MUBUF-NEXT: v_cmp_ne_u32_e32 vcc_lo, 0, v0
|
|
; MUBUF-NEXT: s_and_saveexec_b32 s0, vcc_lo
|
|
; MUBUF-NEXT: s_cbranch_execz BB0_2
|
|
; MUBUF-NEXT: ; %bb.1: ; %if.then4.i
|
|
; MUBUF-NEXT: s_clause 0x1
|
|
; MUBUF-NEXT: buffer_load_dword v0, v40, s[36:39], 0 offen
|
|
; MUBUF-NEXT: buffer_load_dword v1, v40, s[36:39], 0 offen offset:4
|
|
; MUBUF-NEXT: s_waitcnt vmcnt(0)
|
|
; MUBUF-NEXT: v_add_nc_u32_e32 v0, v1, v0
|
|
; MUBUF-NEXT: v_mul_lo_u32 v0, 0x41c64e6d, v0
|
|
; MUBUF-NEXT: v_add_nc_u32_e32 v0, 0x3039, v0
|
|
; MUBUF-NEXT: buffer_store_dword v0, v0, s[36:39], 0 offen
|
|
; MUBUF-NEXT: BB0_2: ; %shader_eval_surface.exit
|
|
; MUBUF-NEXT: s_endpgm
|
|
;
|
|
; FLATSCR-LABEL: kernel_background_evaluate:
|
|
; FLATSCR: ; %bb.0: ; %entry
|
|
; FLATSCR-NEXT: s_add_u32 s8, s8, s13
|
|
; FLATSCR-NEXT: s_movk_i32 s32, 0x6000
|
|
; FLATSCR-NEXT: s_addc_u32 s9, s9, 0
|
|
; FLATSCR-NEXT: s_setreg_b32 hwreg(HW_REG_FLAT_SCR_LO), s8
|
|
; FLATSCR-NEXT: s_setreg_b32 hwreg(HW_REG_FLAT_SCR_HI), s9
|
|
; FLATSCR-NEXT: s_load_dword s2, s[4:5], 0x24
|
|
; FLATSCR-NEXT: v_mov_b32_e32 v1, 0x2000
|
|
; FLATSCR-NEXT: v_mov_b32_e32 v2, 0x4000
|
|
; FLATSCR-NEXT: v_mov_b32_e32 v3, 0
|
|
; FLATSCR-NEXT: v_mov_b32_e32 v4, 0x400000
|
|
; FLATSCR-NEXT: s_getpc_b64 s[0:1]
|
|
; FLATSCR-NEXT: s_add_u32 s0, s0, svm_eval_nodes@rel32@lo+4
|
|
; FLATSCR-NEXT: s_addc_u32 s1, s1, svm_eval_nodes@rel32@hi+12
|
|
; FLATSCR-NEXT: s_waitcnt lgkmcnt(0)
|
|
; FLATSCR-NEXT: v_mov_b32_e32 v0, s2
|
|
; FLATSCR-NEXT: s_swappc_b64 s[30:31], s[0:1]
|
|
; FLATSCR-NEXT: v_cmp_ne_u32_e32 vcc_lo, 0, v0
|
|
; FLATSCR-NEXT: s_and_saveexec_b32 s0, vcc_lo
|
|
; FLATSCR-NEXT: s_cbranch_execz BB0_2
|
|
; FLATSCR-NEXT: ; %bb.1: ; %if.then4.i
|
|
; FLATSCR-NEXT: s_movk_i32 vcc_lo, 0x4000
|
|
; FLATSCR-NEXT: scratch_load_dwordx2 v[0:1], off, vcc_lo offset:4
|
|
; FLATSCR-NEXT: s_waitcnt vmcnt(0)
|
|
; FLATSCR-NEXT: v_add_nc_u32_e32 v0, v1, v0
|
|
; FLATSCR-NEXT: v_mul_lo_u32 v0, 0x41c64e6d, v0
|
|
; FLATSCR-NEXT: v_add_nc_u32_e32 v0, 0x3039, v0
|
|
; FLATSCR-NEXT: scratch_store_dword off, v0, s0
|
|
; FLATSCR-NEXT: BB0_2: ; %shader_eval_surface.exit
|
|
; FLATSCR-NEXT: s_endpgm
|
|
entry:
|
|
%sd = alloca < 1339 x i32>, align 8192, addrspace(5)
|
|
%state = alloca <4 x i32>, align 16, addrspace(5)
|
|
%rslt = call i32 @svm_eval_nodes(float addrspace(5)* %kg, <1339 x i32> addrspace(5)* %sd, <4 x i32> addrspace(5)* %state, i32 0, i32 4194304)
|
|
%cmp = icmp eq i32 %rslt, 0
|
|
br i1 %cmp, label %shader_eval_surface.exit, label %if.then4.i
|
|
|
|
if.then4.i: ; preds = %entry
|
|
%rng_hash.i.i = getelementptr inbounds < 4 x i32>, <4 x i32> addrspace(5)* %state, i32 0, i32 1
|
|
%tmp0 = load i32, i32 addrspace(5)* %rng_hash.i.i, align 4
|
|
%rng_offset.i.i = getelementptr inbounds <4 x i32>, <4 x i32> addrspace(5)* %state, i32 0, i32 2
|
|
%tmp1 = load i32, i32 addrspace(5)* %rng_offset.i.i, align 4
|
|
%add.i.i = add i32 %tmp1, %tmp0
|
|
%add1.i.i = add i32 %add.i.i, 0
|
|
%mul.i.i.i.i = mul i32 %add1.i.i, 1103515245
|
|
%add.i.i.i.i = add i32 %mul.i.i.i.i, 12345
|
|
store i32 %add.i.i.i.i, i32 addrspace(5)* undef, align 16
|
|
br label %shader_eval_surface.exit
|
|
|
|
shader_eval_surface.exit: ; preds = %entry
|
|
ret void
|
|
}
|
|
|
|
declare hidden i32 @svm_eval_nodes(float addrspace(5)*, <1339 x i32> addrspace(5)*, <4 x i32> addrspace(5)*, i32, i32) local_unnamed_addr
|