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[AMDGPU] User SGPR count increased to 32 on gfx1250 #154205

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Merged
rampitec merged 1 commit into from
Aug 18, 2025
Merged

[AMDGPU] User SGPR count increased to 32 on gfx1250 #154205

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6 changes: 5 additions & 1 deletion llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -2417,7 +2417,11 @@ unsigned getNSAMaxSize(const MCSubtargetInfo &STI, bool HasSampler) {
return 0;
}

unsigned getMaxNumUserSGPRs(const MCSubtargetInfo &STI) { return 16; }
unsigned getMaxNumUserSGPRs(const MCSubtargetInfo &STI) {
if (isGFX1250(STI))
return 32;
return 16;
}

bool isSI(const MCSubtargetInfo &STI) {
return STI.hasFeature(AMDGPU::FeatureSouthernIslands);
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4 changes: 1 addition & 3 deletions llvm/test/CodeGen/AMDGPU/preload-implicit-kernargs.ll
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Expand Up @@ -117,9 +117,7 @@ define amdgpu_kernel void @no_free_sgprs_block_count_x(ptr addrspace(1) inreg %o
;
; GFX1250-LABEL: no_free_sgprs_block_count_x:
; GFX1250: ; %bb.0:
; GFX1250-NEXT: s_load_b32 s0, s[4:5], 0x28
; GFX1250-NEXT: s_wait_kmcnt 0x0
; GFX1250-NEXT: v_dual_mov_b32 v0, 0 :: v_dual_mov_b32 v1, s0
; GFX1250-NEXT: v_dual_mov_b32 v0, 0 :: v_dual_mov_b32 v1, s18
; GFX1250-NEXT: global_store_b32 v0, v1, s[8:9]
; GFX1250-NEXT: s_endpgm
%imp_arg_ptr = call ptr addrspace(4) @llvm.amdgcn.implicitarg.ptr()
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12 changes: 5 additions & 7 deletions llvm/test/CodeGen/AMDGPU/preload-kernargs.ll
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Expand Up @@ -471,13 +471,11 @@ define amdgpu_kernel void @v8i32_arg(ptr addrspace(1) nocapture inreg %out, <8 x
;
; GFX1250-LABEL: v8i32_arg:
; GFX1250: ; %bb.0:
; GFX1250-NEXT: s_load_b256 s[4:11], s[0:1], 0x20
; GFX1250-NEXT: s_wait_kmcnt 0x0
; GFX1250-NEXT: v_dual_mov_b32 v8, 0 :: v_dual_mov_b32 v0, s8
; GFX1250-NEXT: v_dual_mov_b32 v1, s9 :: v_dual_mov_b32 v2, s10
; GFX1250-NEXT: v_dual_mov_b32 v3, s11 :: v_dual_mov_b32 v4, s4
; GFX1250-NEXT: v_dual_mov_b32 v5, s5 :: v_dual_mov_b32 v6, s6
; GFX1250-NEXT: v_mov_b32_e32 v7, s7
; GFX1250-NEXT: v_dual_mov_b32 v8, 0 :: v_dual_mov_b32 v0, s14
; GFX1250-NEXT: v_dual_mov_b32 v1, s15 :: v_dual_mov_b32 v2, s16
; GFX1250-NEXT: v_dual_mov_b32 v3, s17 :: v_dual_mov_b32 v4, s10
; GFX1250-NEXT: v_dual_mov_b32 v5, s11 :: v_dual_mov_b32 v6, s12
; GFX1250-NEXT: v_mov_b32_e32 v7, s13
; GFX1250-NEXT: s_clause 0x1
; GFX1250-NEXT: global_store_b128 v8, v[0:3], s[2:3] offset:16
; GFX1250-NEXT: global_store_b128 v8, v[4:7], s[2:3]
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