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TheRock/compiler/amd-llvm/llvm/test/CodeGen/AMDGPU/GlobalISel/flat-scratch-init.gfx.ll
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derek.holloway 7502bf64a4
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2026-09-02 16:34:47 -07:00

46 lines
1.8 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -global-isel -new-reg-bank-select -mattr=+enable-flat-scratch -mtriple=amdgcn-mesa-mesa3d -mcpu=gfx900 < %s | FileCheck -check-prefix=MESA %s
; RUN: llc -global-isel -new-reg-bank-select -mattr=+enable-flat-scratch -mtriple=amdgcn-amd-amdpal -mcpu=gfx900 < %s | FileCheck -check-prefix=PAL %s
; Test that the initialization for flat_scratch doesn't crash. PAL
; doesn't add a user SGPR for initializing flat_scratch, mesa does
; (although this probably isn't actually defined).
define amdgpu_ps void @amdgpu_ps() {
; MESA-LABEL: amdgpu_ps:
; MESA: ; %bb.0:
; MESA-NEXT: s_mov_b64 s[0:1], src_private_base
; MESA-NEXT: s_mov_b32 s0, 0
; MESA-NEXT: s_add_u32 flat_scratch_lo, s2, s4
; MESA-NEXT: v_mov_b32_e32 v0, s0
; MESA-NEXT: s_addc_u32 flat_scratch_hi, s3, 0
; MESA-NEXT: v_mov_b32_e32 v2, 0
; MESA-NEXT: v_mov_b32_e32 v1, s1
; MESA-NEXT: flat_store_dword v[0:1], v2
; MESA-NEXT: s_waitcnt vmcnt(0)
; MESA-NEXT: s_endpgm
;
; PAL-LABEL: amdgpu_ps:
; PAL: ; %bb.0:
; PAL-NEXT: s_getpc_b64 s[2:3]
; PAL-NEXT: s_mov_b32 s2, s0
; PAL-NEXT: s_load_dwordx2 s[2:3], s[2:3], 0x0
; PAL-NEXT: v_mov_b32_e32 v2, 0
; PAL-NEXT: s_waitcnt lgkmcnt(0)
; PAL-NEXT: s_and_b32 s3, s3, 0xffff
; PAL-NEXT: s_add_u32 flat_scratch_lo, s2, s0
; PAL-NEXT: s_mov_b64 s[0:1], src_private_base
; PAL-NEXT: s_mov_b32 s0, 0
; PAL-NEXT: v_mov_b32_e32 v0, s0
; PAL-NEXT: s_addc_u32 flat_scratch_hi, s3, 0
; PAL-NEXT: v_mov_b32_e32 v1, s1
; PAL-NEXT: flat_store_dword v[0:1], v2
; PAL-NEXT: s_waitcnt vmcnt(0)
; PAL-NEXT: s_endpgm
%alloca = alloca i32, addrspace(5)
%cast = addrspacecast ptr addrspace(5) %alloca to ptr
store volatile i32 0, ptr %cast
ret void
}