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[AMDGPU] Add support forv_rcp_bf16 on gfx1250#148916

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Merged
shiltian merged 1 commit intomainfromusers/shiltian/v_rcp_bf16
Jul 15, 2025

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Co-authored-by: Mekhanoshin, StanislavStanislav.Mekhanoshin@amd.com

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shiltian commentedJul 15, 2025
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@llvmbotllvmbot added clangClang issues not falling into any other category backend:AMDGPU clang:frontendLanguage frontend issues, e.g. anything involving "Sema" clang:codegenIR generation bugs: mangling, exceptions, etc. mcMachine (object) code labelsJul 15, 2025
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llvmbot commentedJul 15, 2025
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@llvm/pr-subscribers-mc
@llvm/pr-subscribers-backend-amdgpu
@llvm/pr-subscribers-clang

@llvm/pr-subscribers-clang-codegen

Author: Shilei Tian (shiltian)

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Co-authored-by: Mekhanoshin, Stanislav <Stanislav.Mekhanoshin@amd.com>


Patch is 67.39 KiB, truncated to 20.00 KiB below, full version:https://github.com/llvm/llvm-project/pull/148916.diff

23 Files Affected:

  • (modified) clang/include/clang/Basic/BuiltinsAMDGPU.def (+1)
  • (modified) clang/lib/CodeGen/TargetBuiltins/AMDGPU.cpp (+1)
  • (modified) clang/test/CodeGenOpenCL/builtins-amdgcn-gfx1250.cl (+19)
  • (modified) llvm/lib/Target/AMDGPU/VOP1Instructions.td (+2)
  • (added) llvm/test/CodeGen/AMDGPU/llvm.amdgcn.rcp.bf16.ll (+36)
  • (modified) llvm/test/MC/AMDGPU/gfx1250_asm_vop1-fake16.s (+45)
  • (modified) llvm/test/MC/AMDGPU/gfx1250_asm_vop1.s (+48)
  • (modified) llvm/test/MC/AMDGPU/gfx1250_asm_vop1_dpp16-fake16.s (+56)
  • (modified) llvm/test/MC/AMDGPU/gfx1250_asm_vop1_dpp16.s (+60)
  • (modified) llvm/test/MC/AMDGPU/gfx1250_asm_vop1_dpp8-fake16.s (+12)
  • (modified) llvm/test/MC/AMDGPU/gfx1250_asm_vop1_dpp8.s (+16)
  • (modified) llvm/test/MC/AMDGPU/gfx1250_asm_vop3_from_vop1-fake16.s (+45)
  • (modified) llvm/test/MC/AMDGPU/gfx1250_asm_vop3_from_vop1.s (+48)
  • (modified) llvm/test/MC/AMDGPU/gfx1250_asm_vop3_from_vop1_dpp16-fake16.s (+56)
  • (modified) llvm/test/MC/AMDGPU/gfx1250_asm_vop3_from_vop1_dpp16.s (+60)
  • (modified) llvm/test/MC/AMDGPU/gfx1250_asm_vop3_from_vop1_dpp8-fake16.s (+16)
  • (modified) llvm/test/MC/AMDGPU/gfx1250_asm_vop3_from_vop1_dpp8.s (+20)
  • (modified) llvm/test/MC/Disassembler/AMDGPU/gfx1250_dasm_vop1.txt (+63)
  • (modified) llvm/test/MC/Disassembler/AMDGPU/gfx1250_dasm_vop1_dpp16.txt (+59)
  • (modified) llvm/test/MC/Disassembler/AMDGPU/gfx1250_dasm_vop1_dpp8.txt (+16)
  • (modified) llvm/test/MC/Disassembler/AMDGPU/gfx1250_dasm_vop3_from_vop1.txt (+64)
  • (modified) llvm/test/MC/Disassembler/AMDGPU/gfx1250_dasm_vop3_from_vop1_dpp16.txt (+60)
  • (modified) llvm/test/MC/Disassembler/AMDGPU/gfx1250_dasm_vop3_from_vop1_dpp8.txt (+20)
diff --git a/clang/include/clang/Basic/BuiltinsAMDGPU.def b/clang/include/clang/Basic/BuiltinsAMDGPU.defindex ab432b7a8ad58..71e4b3486167a 100644--- a/clang/include/clang/Basic/BuiltinsAMDGPU.def+++ b/clang/include/clang/Basic/BuiltinsAMDGPU.def@@ -669,6 +669,7 @@ TARGET_BUILTIN(__builtin_amdgcn_s_wait_asynccnt, "vIUs", "n", "gfx1250-insts") TARGET_BUILTIN(__builtin_amdgcn_s_wait_tensorcnt, "vIUs", "n", "gfx1250-insts")  TARGET_BUILTIN(__builtin_amdgcn_tanh_bf16, "yy", "nc", "bf16-trans-insts")+TARGET_BUILTIN(__builtin_amdgcn_rcp_bf16, "yy", "nc", "bf16-trans-insts")  TARGET_BUILTIN(__builtin_amdgcn_cvt_f16_fp8, "hiIi", "nc", "gfx1250-insts") TARGET_BUILTIN(__builtin_amdgcn_cvt_f16_bf8, "hiIi", "nc", "gfx1250-insts")diff --git a/clang/lib/CodeGen/TargetBuiltins/AMDGPU.cpp b/clang/lib/CodeGen/TargetBuiltins/AMDGPU.cppindex bd44874eac470..0d8c2ed284994 100644--- a/clang/lib/CodeGen/TargetBuiltins/AMDGPU.cpp+++ b/clang/lib/CodeGen/TargetBuiltins/AMDGPU.cpp@@ -411,6 +411,7 @@ Value *CodeGenFunction::EmitAMDGPUBuiltinExpr(unsigned BuiltinID,   case AMDGPU::BI__builtin_amdgcn_rcp:   case AMDGPU::BI__builtin_amdgcn_rcpf:   case AMDGPU::BI__builtin_amdgcn_rcph:+  case AMDGPU::BI__builtin_amdgcn_rcp_bf16:     return emitBuiltinWithOneOverloadedType<1>(*this, E, Intrinsic::amdgcn_rcp);   case AMDGPU::BI__builtin_amdgcn_sqrt:   case AMDGPU::BI__builtin_amdgcn_sqrtf:diff --git a/clang/test/CodeGenOpenCL/builtins-amdgcn-gfx1250.cl b/clang/test/CodeGenOpenCL/builtins-amdgcn-gfx1250.clindex 830ceabb1cb29..e50f02ad27357 100644--- a/clang/test/CodeGenOpenCL/builtins-amdgcn-gfx1250.cl+++ b/clang/test/CodeGenOpenCL/builtins-amdgcn-gfx1250.cl@@ -61,6 +61,25 @@ void test_tanh_bf16(global __bf16* out, __bf16 a)   *out = __builtin_amdgcn_tanh_bf16(a); }+// CHECK-LABEL: @test_rcp_bf16(+// CHECK-NEXT:  entry:+// CHECK-NEXT:    [[OUT_ADDR:%.*]] = alloca ptr addrspace(1), align 8, addrspace(5)+// CHECK-NEXT:    [[A_ADDR:%.*]] = alloca bfloat, align 2, addrspace(5)+// CHECK-NEXT:    [[OUT_ADDR_ASCAST:%.*]] = addrspacecast ptr addrspace(5) [[OUT_ADDR]] to ptr+// CHECK-NEXT:    [[A_ADDR_ASCAST:%.*]] = addrspacecast ptr addrspace(5) [[A_ADDR]] to ptr+// CHECK-NEXT:    store ptr addrspace(1) [[OUT:%.*]], ptr [[OUT_ADDR_ASCAST]], align 8+// CHECK-NEXT:    store bfloat [[A:%.*]], ptr [[A_ADDR_ASCAST]], align 2+// CHECK-NEXT:    [[TMP0:%.*]] = load bfloat, ptr [[A_ADDR_ASCAST]], align 2+// CHECK-NEXT:    [[TMP1:%.*]] = call bfloat @llvm.amdgcn.rcp.bf16(bfloat [[TMP0]])+// CHECK-NEXT:    [[TMP2:%.*]] = load ptr addrspace(1), ptr [[OUT_ADDR_ASCAST]], align 8+// CHECK-NEXT:    store bfloat [[TMP1]], ptr addrspace(1) [[TMP2]], align 2+// CHECK-NEXT:    ret void+//+void test_rcp_bf16(global __bf16* out, __bf16 a)+{+  *out = __builtin_amdgcn_rcp_bf16(a);+}+ // CHECK-LABEL: @test_cvt_f16_fp8( // CHECK-NEXT:  entry: // CHECK-NEXT:    [[OUT_ADDR:%.*]] = alloca ptr addrspace(1), align 8, addrspace(5)diff --git a/llvm/lib/Target/AMDGPU/VOP1Instructions.td b/llvm/lib/Target/AMDGPU/VOP1Instructions.tdindex 57857c688283d..28f239ba8c396 100644--- a/llvm/lib/Target/AMDGPU/VOP1Instructions.td+++ b/llvm/lib/Target/AMDGPU/VOP1Instructions.td@@ -529,6 +529,7 @@ defm V_COS_F16 : VOP1Inst_t16 <"v_cos_f16", VOP_F16_F16, AMDGPUcos>;  let SubtargetPredicate = HasBF16TransInsts in { defm V_TANH_BF16 : VOP1Inst_t16 <"v_tanh_bf16", VOP_BF16_BF16, int_amdgcn_tanh>;+defm V_RCP_BF16  : VOP1Inst_t16 <"v_rcp_bf16",  VOP_BF16_BF16, AMDGPUrcp>; } } // End TRANS = 1, SchedRW = [WriteTrans32] defm V_FREXP_MANT_F16 : VOP1Inst_t16 <"v_frexp_mant_f16", VOP_F16_F16, int_amdgcn_frexp_mant>;@@ -1137,6 +1138,7 @@ defm V_CVT_PK_F16_FP8        : VOP1_Real_FULL_t16_and_fake16_gfx1250<0x075>; defm V_CVT_PK_F16_BF8        : VOP1_Real_FULL_t16_and_fake16_gfx1250<0x076>; defm V_CVT_F16_FP8           : VOP1_Real_FULL_t16_and_fake16_gfx1250<0x077>; defm V_CVT_F16_BF8           : VOP1_Real_FULL_t16_and_fake16_gfx1250<0x078>;+defm V_RCP_BF16              : VOP1_Real_FULL_t16_and_fake16_gfx1250<0x079>;  //===----------------------------------------------------------------------===// // GFX10.diff --git a/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.rcp.bf16.ll b/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.rcp.bf16.llnew file mode 100644index 0000000000000..3c49d0b9c01b1--- /dev/null+++ b/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.rcp.bf16.ll@@ -0,0 +1,36 @@+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5+; xUN: llc -global-isel=0 -mtriple=amdgcn-amd-amdhsa -mcpu=gfx1250 -mattr=+real-true16 < %s | FileCheck -check-prefix=SDAG-TRUE16 %s+; RUN: llc -global-isel=0 -mtriple=amdgcn-amd-amdhsa -mcpu=gfx1250 -mattr=-real-true16 < %s | FileCheck -check-prefix=SDAG-FAKE16 %s+; xUN: llc -global-isel=1 -mtriple=amdgcn-amd-amdhsa -mcpu=gfx1250 -mattr=+real-true16 < %s | FileCheck -check-prefix=GI-TRUE16 %s+; xUN: llc -global-isel=1 -mtriple=amdgcn-amd-amdhsa -mcpu=gfx1250 -mattr=-real-true16 < %s | FileCheck -check-prefix=GI-FAKE16 %s++; FIXME: t16 doesn't work at the moment because the store of s16 under t16 mode fails to select.+; FIXME: GlobalISel does not work with bf16++declare bfloat @llvm.amdgcn.rcp.bf16(bfloat) #0++define amdgpu_kernel void @rcp_bf16(ptr addrspace(1) %out, bfloat %src) #1 {+; SDAG-TRUE16-LABEL: rcp_bf16:+; SDAG-TRUE16:       ; %bb.0:+; SDAG-TRUE16-NEXT:    s_load_b96 s[0:2], s[4:5], 0x0+; SDAG-TRUE16-NEXT:    v_mov_b32_e32 v1, 0+; SDAG-TRUE16-NEXT:    s_wait_kmcnt 0x0+; SDAG-TRUE16-NEXT:    v_rcp_bf16_e32 v0.l, s2+; SDAG-TRUE16-NEXT:    flat_store_b16 v1, v0, s[0:1]+; SDAG-TRUE16-NEXT:    s_endpgm+;+; SDAG-FAKE16-LABEL: rcp_bf16:+; SDAG-FAKE16:       ; %bb.0:+; SDAG-FAKE16-NEXT:    s_load_b96 s[0:2], s[4:5], 0x0+; SDAG-FAKE16-NEXT:    v_mov_b32_e32 v1, 0+; SDAG-FAKE16-NEXT:    s_wait_kmcnt 0x0+; SDAG-FAKE16-NEXT:    v_rcp_bf16_e32 v0, s2+; SDAG-FAKE16-NEXT:    global_store_b16 v1, v0, s[0:1]+; SDAG-FAKE16-NEXT:    s_endpgm+  %rcp = call bfloat @llvm.amdgcn.rcp.bf16(bfloat %src) #0+  store bfloat %rcp, ptr addrspace(1) %out, align 2+  ret void+}++attributes #0 = { nounwind readnone }+attributes #1 = { nounwind }diff --git a/llvm/test/MC/AMDGPU/gfx1250_asm_vop1-fake16.s b/llvm/test/MC/AMDGPU/gfx1250_asm_vop1-fake16.sindex cf8ad0e8b7b65..ce8f54a7ef9fc 100644--- a/llvm/test/MC/AMDGPU/gfx1250_asm_vop1-fake16.s+++ b/llvm/test/MC/AMDGPU/gfx1250_asm_vop1-fake16.s@@ -73,6 +73,51 @@ v_tanh_bf16 v5, src_scc v_tanh_bf16 v127, 0x8000 // GFX1250: v_tanh_bf16_e32 v127, 0x8000            ; encoding: [0xff,0x94,0xfe,0x7e,0x00,0x80,0x00,0x00]+v_rcp_bf16 v5, v1+// GFX1250: v_rcp_bf16_e32 v5, v1                   ; encoding: [0x01,0xf3,0x0a,0x7e]++v_rcp_bf16 v5, v127+// GFX1250: v_rcp_bf16_e32 v5, v127                 ; encoding: [0x7f,0xf3,0x0a,0x7e]++v_rcp_bf16 v5, s1+// GFX1250: v_rcp_bf16_e32 v5, s1                   ; encoding: [0x01,0xf2,0x0a,0x7e]++v_rcp_bf16 v5, s105+// GFX1250: v_rcp_bf16_e32 v5, s105                 ; encoding: [0x69,0xf2,0x0a,0x7e]++v_rcp_bf16 v5, vcc_lo+// GFX1250: v_rcp_bf16_e32 v5, vcc_lo               ; encoding: [0x6a,0xf2,0x0a,0x7e]++v_rcp_bf16 v5, vcc_hi+// GFX1250: v_rcp_bf16_e32 v5, vcc_hi               ; encoding: [0x6b,0xf2,0x0a,0x7e]++v_rcp_bf16 v5, ttmp15+// GFX1250: v_rcp_bf16_e32 v5, ttmp15               ; encoding: [0x7b,0xf2,0x0a,0x7e]++v_rcp_bf16 v5, m0+// GFX1250: v_rcp_bf16_e32 v5, m0                   ; encoding: [0x7d,0xf2,0x0a,0x7e]++v_rcp_bf16 v5, exec_lo+// GFX1250: v_rcp_bf16_e32 v5, exec_lo              ; encoding: [0x7e,0xf2,0x0a,0x7e]++v_rcp_bf16 v5, exec_hi+// GFX1250: v_rcp_bf16_e32 v5, exec_hi              ; encoding: [0x7f,0xf2,0x0a,0x7e]++v_rcp_bf16 v5, null+// GFX1250: v_rcp_bf16_e32 v5, null                 ; encoding: [0x7c,0xf2,0x0a,0x7e]++v_rcp_bf16 v5, -1+// GFX1250: v_rcp_bf16_e32 v5, -1                   ; encoding: [0xc1,0xf2,0x0a,0x7e]++v_rcp_bf16 v5, 0.5+// GFX1250: v_rcp_bf16_e32 v5, 0.5                  ; encoding: [0xf0,0xf2,0x0a,0x7e]++v_rcp_bf16 v5, src_scc+// GFX1250: v_rcp_bf16_e32 v5, src_scc              ; encoding: [0xfd,0xf2,0x0a,0x7e]++v_rcp_bf16 v127, 0x8000+// GFX1250: v_rcp_bf16_e32 v127, 0x8000             ; encoding: [0xff,0xf2,0xfe,0x7e,0x00,0x80,0x00,0x00]+ v_cvt_f32_bf16 v5, v1 // GFX1250: v_cvt_f32_bf16_e32 v5, v1               ; encoding: [0x01,0xe5,0x0a,0x7e]diff --git a/llvm/test/MC/AMDGPU/gfx1250_asm_vop1.s b/llvm/test/MC/AMDGPU/gfx1250_asm_vop1.sindex 055f540fc2203..7001a1f1c4622 100644--- a/llvm/test/MC/AMDGPU/gfx1250_asm_vop1.s+++ b/llvm/test/MC/AMDGPU/gfx1250_asm_vop1.s@@ -76,6 +76,54 @@ v_tanh_bf16 v127, 0x8000 v_tanh_bf16 v5.h, v1.h // GFX1250: v_tanh_bf16_e32 v5.h, v1.h              ; encoding: [0x81,0x95,0x0a,0x7f]+v_rcp_bf16 v5, v1+// GFX1250: v_rcp_bf16_e32 v5, v1                   ; encoding: [0x01,0xf3,0x0a,0x7e]++v_rcp_bf16 v5, v127+// GFX1250: v_rcp_bf16_e32 v5, v127                 ; encoding: [0x7f,0xf3,0x0a,0x7e]++v_rcp_bf16 v5, s1+// GFX1250: v_rcp_bf16_e32 v5, s1                   ; encoding: [0x01,0xf2,0x0a,0x7e]++v_rcp_bf16 v5, s105+// GFX1250: v_rcp_bf16_e32 v5, s105                 ; encoding: [0x69,0xf2,0x0a,0x7e]++v_rcp_bf16 v5, vcc_lo+// GFX1250: v_rcp_bf16_e32 v5, vcc_lo               ; encoding: [0x6a,0xf2,0x0a,0x7e]++v_rcp_bf16 v5, vcc_hi+// GFX1250: v_rcp_bf16_e32 v5, vcc_hi               ; encoding: [0x6b,0xf2,0x0a,0x7e]++v_rcp_bf16 v5, ttmp15+// GFX1250: v_rcp_bf16_e32 v5, ttmp15               ; encoding: [0x7b,0xf2,0x0a,0x7e]++v_rcp_bf16 v5, m0+// GFX1250: v_rcp_bf16_e32 v5, m0                   ; encoding: [0x7d,0xf2,0x0a,0x7e]++v_rcp_bf16 v5, exec_lo+// GFX1250: v_rcp_bf16_e32 v5, exec_lo              ; encoding: [0x7e,0xf2,0x0a,0x7e]++v_rcp_bf16 v5, exec_hi+// GFX1250: v_rcp_bf16_e32 v5, exec_hi              ; encoding: [0x7f,0xf2,0x0a,0x7e]++v_rcp_bf16 v5, null+// GFX1250: v_rcp_bf16_e32 v5, null                 ; encoding: [0x7c,0xf2,0x0a,0x7e]++v_rcp_bf16 v5, -1+// GFX1250: v_rcp_bf16_e32 v5, -1                   ; encoding: [0xc1,0xf2,0x0a,0x7e]++v_rcp_bf16 v5, 0.5+// GFX1250: v_rcp_bf16_e32 v5, 0.5                  ; encoding: [0xf0,0xf2,0x0a,0x7e]++v_rcp_bf16 v5, src_scc+// GFX1250: v_rcp_bf16_e32 v5, src_scc              ; encoding: [0xfd,0xf2,0x0a,0x7e]++v_rcp_bf16 v127, 0x8000+// GFX1250: v_rcp_bf16_e32 v127, 0x8000             ; encoding: [0xff,0xf2,0xfe,0x7e,0x00,0x80,0x00,0x00]++v_rcp_bf16 v5.h, v1.h+// GFX1250: v_rcp_bf16_e32 v5.h, v1.h               ; encoding: [0x81,0xf3,0x0a,0x7f]+ v_cvt_f32_bf16 v5, v1 // GFX1250: v_cvt_f32_bf16_e32 v5, v1               ; encoding: [0x01,0xe5,0x0a,0x7e]diff --git a/llvm/test/MC/AMDGPU/gfx1250_asm_vop1_dpp16-fake16.s b/llvm/test/MC/AMDGPU/gfx1250_asm_vop1_dpp16-fake16.sindex 4e5754f3961c1..3de8fc29bb01a 100644--- a/llvm/test/MC/AMDGPU/gfx1250_asm_vop1_dpp16-fake16.s+++ b/llvm/test/MC/AMDGPU/gfx1250_asm_vop1_dpp16-fake16.s@@ -58,6 +58,62 @@ v_tanh_bf16 v127, -|v127| row_xmask:15 row_mask:0x3 bank_mask:0x0 bound_ctrl:0 f // GFX1250: v_tanh_bf16_dpp v127, -|v127| row_xmask:15 row_mask:0x3 bank_mask:0x0 fi:1 ; encoding: [0xfa,0x94,0xfe,0x7e,0x7f,0x6f,0x35,0x30] // GFX12-ERR: :[[@LINE-2]]:1: error: instruction not supported on this GPU+v_rcp_bf16 v5, v1 quad_perm:[3,2,1,0]+// GFX1250: v_rcp_bf16_dpp v5, v1 quad_perm:[3,2,1,0] row_mask:0xf bank_mask:0xf ; encoding: [0xfa,0xf2,0x0a,0x7e,0x01,0x1b,0x00,0xff]+// GFX12-ERR: :[[@LINE-2]]:1: error: instruction not supported on this GPU++v_rcp_bf16 v5, v1 quad_perm:[0,1,2,3]+// GFX1250: v_rcp_bf16_dpp v5, v1 quad_perm:[0,1,2,3] row_mask:0xf bank_mask:0xf ; encoding: [0xfa,0xf2,0x0a,0x7e,0x01,0xe4,0x00,0xff]+// GFX12-ERR: :[[@LINE-2]]:1: error: instruction not supported on this GPU++v_rcp_bf16 v5, v1 row_mirror+// GFX1250: v_rcp_bf16_dpp v5, v1 row_mirror row_mask:0xf bank_mask:0xf ; encoding: [0xfa,0xf2,0x0a,0x7e,0x01,0x40,0x01,0xff]+// GFX12-ERR: :[[@LINE-2]]:1: error: instruction not supported on this GPU++v_rcp_bf16 v5, v1 row_half_mirror+// GFX1250: v_rcp_bf16_dpp v5, v1 row_half_mirror row_mask:0xf bank_mask:0xf ; encoding: [0xfa,0xf2,0x0a,0x7e,0x01,0x41,0x01,0xff]+// GFX12-ERR: :[[@LINE-2]]:1: error: instruction not supported on this GPU++v_rcp_bf16 v5, v1 row_shl:1+// GFX1250: v_rcp_bf16_dpp v5, v1 row_shl:1 row_mask:0xf bank_mask:0xf ; encoding: [0xfa,0xf2,0x0a,0x7e,0x01,0x01,0x01,0xff]+// GFX12-ERR: :[[@LINE-2]]:1: error: instruction not supported on this GPU++v_rcp_bf16 v5, v1 row_shl:15+// GFX1250: v_rcp_bf16_dpp v5, v1 row_shl:15 row_mask:0xf bank_mask:0xf ; encoding: [0xfa,0xf2,0x0a,0x7e,0x01,0x0f,0x01,0xff]+// GFX12-ERR: :[[@LINE-2]]:1: error: instruction not supported on this GPU++v_rcp_bf16 v5, v1 row_shr:1+// GFX1250: v_rcp_bf16_dpp v5, v1 row_shr:1 row_mask:0xf bank_mask:0xf ; encoding: [0xfa,0xf2,0x0a,0x7e,0x01,0x11,0x01,0xff]+// GFX12-ERR: :[[@LINE-2]]:1: error: instruction not supported on this GPU++v_rcp_bf16 v5, v1 row_shr:15+// GFX1250: v_rcp_bf16_dpp v5, v1 row_shr:15 row_mask:0xf bank_mask:0xf ; encoding: [0xfa,0xf2,0x0a,0x7e,0x01,0x1f,0x01,0xff]+// GFX12-ERR: :[[@LINE-2]]:1: error: instruction not supported on this GPU++v_rcp_bf16 v5, v1 row_ror:1+// GFX1250: v_rcp_bf16_dpp v5, v1 row_ror:1 row_mask:0xf bank_mask:0xf ; encoding: [0xfa,0xf2,0x0a,0x7e,0x01,0x21,0x01,0xff]+// GFX12-ERR: :[[@LINE-2]]:1: error: instruction not supported on this GPU++v_rcp_bf16 v5, v1 row_ror:15+// GFX1250: v_rcp_bf16_dpp v5, v1 row_ror:15 row_mask:0xf bank_mask:0xf ; encoding: [0xfa,0xf2,0x0a,0x7e,0x01,0x2f,0x01,0xff]+// GFX12-ERR: :[[@LINE-2]]:1: error: instruction not supported on this GPU++v_rcp_bf16 v5, v1 row_share:0 row_mask:0xf bank_mask:0xf+// GFX1250: v_rcp_bf16_dpp v5, v1 row_share:0 row_mask:0xf bank_mask:0xf ; encoding: [0xfa,0xf2,0x0a,0x7e,0x01,0x50,0x01,0xff]+// GFX12-ERR: :[[@LINE-2]]:1: error: instruction not supported on this GPU++v_rcp_bf16 v5, v1 row_share:15 row_mask:0x0 bank_mask:0x1+// GFX1250: v_rcp_bf16_dpp v5, v1 row_share:15 row_mask:0x0 bank_mask:0x1 ; encoding: [0xfa,0xf2,0x0a,0x7e,0x01,0x5f,0x01,0x01]+// GFX12-ERR: :[[@LINE-2]]:1: error: instruction not supported on this GPU++v_rcp_bf16 v5, v1 row_xmask:0 row_mask:0x1 bank_mask:0x3 bound_ctrl:1 fi:0+// GFX1250: v_rcp_bf16_dpp v5, v1 row_xmask:0 row_mask:0x1 bank_mask:0x3 bound_ctrl:1 ; encoding: [0xfa,0xf2,0x0a,0x7e,0x01,0x60,0x09,0x13]+// GFX12-ERR: :[[@LINE-2]]:1: error: instruction not supported on this GPU++v_rcp_bf16 v127, -|v127| row_xmask:15 row_mask:0x3 bank_mask:0x0 bound_ctrl:0 fi:1+// GFX1250: v_rcp_bf16_dpp v127, -|v127| row_xmask:15 row_mask:0x3 bank_mask:0x0 fi:1 ; encoding: [0xfa,0xf2,0xfe,0x7e,0x7f,0x6f,0x35,0x30]+// GFX12-ERR: :[[@LINE-2]]:1: error: instruction not supported on this GPU+ v_cvt_f32_bf16 v5, v1 quad_perm:[3,2,1,0] // GFX1250: v_cvt_f32_bf16_dpp v5, v1 quad_perm:[3,2,1,0] row_mask:0xf bank_mask:0xf ; encoding: [0xfa,0xe4,0x0a,0x7e,0x01,0x1b,0x00,0xff] // GFX12-ERR: :[[@LINE-2]]:1: error: instruction not supported on this GPUdiff --git a/llvm/test/MC/AMDGPU/gfx1250_asm_vop1_dpp16.s b/llvm/test/MC/AMDGPU/gfx1250_asm_vop1_dpp16.sindex a6787254ae60f..4632b1574731b 100644--- a/llvm/test/MC/AMDGPU/gfx1250_asm_vop1_dpp16.s+++ b/llvm/test/MC/AMDGPU/gfx1250_asm_vop1_dpp16.s@@ -62,6 +62,66 @@ v_tanh_bf16 v5.h, v1.h quad_perm:[3,2,1,0] // GFX1250: v_tanh_bf16_dpp v5.h, v1.h quad_perm:[3,2,1,0] row_mask:0xf bank_mask:0xf ; encoding: [0xfa,0x94,0x0a,0x7f,0x81,0x1b,0x00,0xff] // GFX12-ERR: :[[@LINE-2]]:1: error: instruction not supported on this GPU+v_rcp_bf16 v5, v1 quad_perm:[3,2,1,0]+// GFX1250: v_rcp_bf16_dpp v5, v1 quad_perm:[3,2,1,0] row_mask:0xf bank_mask:0xf ; encoding: [0xfa,0xf2,0x0a,0x7e,0x01,0x1b,0x00,0xff]+// GFX12-ERR: :[[@LINE-2]]:1: error: instruction not supported on this GPU++v_rcp_bf16 v5, v1 quad_perm:[0,1,2,3]+// GFX1250: v_rcp_bf16_dpp v5, v1 quad_perm:[0,1,2,3] row_mask:0xf bank_mask:0xf ; encoding: [0xfa,0xf2,0x0a,0x7e,0x01,0xe4,0x00,0xff]+// GFX12-ERR: :[[@LINE-2]]:1: error: instruction not supported on this GPU++v_rcp_bf16 v5, v1 row_mirror+// GFX1250: v_rcp_bf16_dpp v5, v1 row_mirror row_mask:0xf bank_mask:0xf ; encoding: [0xfa,0xf2,0x0a,0x7e,0x01,0x40,0x01,0xff]+// GFX12-ERR: :[[@LINE-2]]:1: error: instruction not supported on this GPU++v_rcp_bf16 v5, v1 row_half_mirror+// GFX1250: v_rcp_bf16_dpp v5, v1 row_half_mirror row_mask:0xf bank_mask:0xf ; encoding: [0xfa,0xf2,0x0a,0x7e,0x01,0x41,0x01,0xff]+// GFX12-ERR: :[[@LINE-2]]:1: error: instruction not supported on this GPU++v_rcp_bf16 v5, v1 row_shl:1+// GFX1250: v_rcp_bf16_dpp v5, v1 row_shl:1 row_mask:0xf bank_mask:0xf ; encoding: [0xfa,0xf2,0x0a,0x7e,0x01,0x01,0x01,0xff]+// GFX12-ERR: :[[@LINE-2]]:1: error: instruction not supported on this GPU++v_rcp_bf16 v5, v1 row_shl:15+// GFX1250: v_rcp_bf16_dpp v5, v1 row_shl:15 row_mask:0xf bank_mask:0xf ; encoding: [0xfa,0xf2,0x0a,0x7e,0x01,0x0f,0x01,0xff]+// GFX12-ERR: :[[@LINE-2]]:1: error: instruction not supported on this GPU++v_rcp_bf16 v5, v1 row_shr:1+// GFX1250: v_rcp_bf16_dpp v5, v1 row_shr:1 row_mask:0xf bank_mask:0xf ; encoding: [0xfa,0xf2,0x0a,0x7e,0x01,0x11,0x01,0xff]+// GFX12-ERR: :[[@LINE-2]]:1: error: instruction not supported on this GPU++v_rcp_bf16 v5, v1 row_shr:15+// GFX1250: v_rcp_bf16_dpp v5, v1 row_shr:15 row_mask:0xf bank_mask:0xf ; encoding: [0xfa,0xf2,0x0a,0x7e,0x01,0x1f,0x01,0xff]+// GFX12-ERR: :[[@LINE-2]]:1: error: instruction not supported on this GPU++v_rcp_bf16 v5, v1 row_ror:1+// GFX1250: v_rcp_bf16_dpp v5, v1 row_ror:1 row_mask:0xf bank_mask:0xf ; encoding: [0xfa,0xf2,0x0a,0x7e,0x01,0x21,0x01,0xff]+// GFX12-ERR: :[[@LINE-2]]:1: error: instruction not supported on this GPU++v_rcp_bf16 v5, v1 row_ror:15+// GFX1250: v_rcp_bf16_dpp v5, v1 row_ror:15 row_mask:0xf bank_mask:0xf ; encoding: [0xfa,0xf2,0x0a,0x7e,0x01,0x2f,0x01,0xff]+// GFX12-ERR: :[[@LINE-2]]:1: error: instruction not supported on this GPU++v_rcp_bf16 v5, v1 row_share:0 row_mask:0xf bank_mask:0xf+// GFX1250: v_rcp_bf16_dpp v5, v1 row_share:0 row_mask:0xf bank_mask:0xf ; encoding: [0xfa,0xf2,0x0a,0x7e,0x01,0x50,0x01,0xff]+// GFX12-ERR: :[[@LINE-2]]:1: error: instruction not supported on this GPU++v_rcp_bf16 v5, v1 row_share:15 row_mask:0x0 bank_mask:0x1+// GFX1250: v_rcp_bf16_dpp v5, v1 row_share:15 row_mask:0x0 bank_mask:0x1 ; encoding: [0xfa,0xf2,0x0a,0x7e,0x01,0x5f,0x01,0x01]+// GFX12-ERR: :[[@LINE-2]]:1: error: instruction not supported on this GPU++v_rcp_bf16 v5, v1 row_xmask:0 row_mask:0x1 bank_mask:0x3 bound_ctrl:1 fi:0+// GFX1250: v_rcp_bf16_dpp v5, v1 row_xmask:0 row_mask:0x1 bank_mask:0x3 bound_ctrl:1 ; encoding: [0xfa,0xf2,0x0a,0x7e,0x01,0x60,0x09,0x13]+// GFX12-ERR: :[[@LINE-2]]:1: error: instruction not supported on this GPU++v_rcp_bf16 v127, -|v127| row_xmask:15 row_mask:0x3 bank_mask:0x0 bound_ctrl:0 fi:1+// GFX1250: v_rcp_bf16_dpp v127, -|v127| row_xmask:15 row_mask:0x3 bank_mask:0x0 fi:1 ; encoding: [0xfa,0xf2,0xfe,0x7e,0x7f,0x6f,0x35,0x30]+// GFX12-ERR: :[[@LINE-2]]:1: error: instruction not supported on this GPU++v_rcp_bf16 v5.h, v1.h quad_perm:[3,2,1,0]+// GFX1250: v_rcp_bf16_dpp v5.h, v1.h quad_perm:[3,2,1,0] row_mask:0xf bank_mask:0xf ; encoding: [0xfa,0xf2,0x0a,0x7f,0x81,0x1b,0x00,0xff]+// GFX12-ERR: :[[@LINE-2]]:1: error: instruction not supported on this GPU+ v_cvt_f32_bf16 v5, v1 quad_perm:[3,2,1,0] // GFX1250: v_cvt_f32_bf16_dpp v5, v1 quad_perm:[3,2,1,0] row_mask:0xf bank_mask:0xf ; encoding: [0xfa,0xe4,0x0a,0x7e,0x01,0x1b,0x00,0xff] // GFX12-ERR: :[[@LINE-2]]:1: error: instruction not supported on this GPUdiff --git a/llvm/test/MC/AMDGPU/gfx1250_asm_vop1_dpp8-fake16.s b/llvm/test/MC/AMDGPU/gfx1250_asm_vop1_dpp8-fake16.sindex e6c35d5e3b863..1a6028ad32bcf 100644--- a/llvm/test/MC/AMDGPU/gfx1250_asm_vop1_dpp8-fake16.s+++ b/llvm/test/MC/AMDGPU/gfx1250_asm_vop1_dpp8-fake16.s@@ -14,6 +14,18 @@ v_tanh_bf16 v127, v127 dpp8:[0,0,0,0,0,0,0,0] fi:0 // GFX1250: v_tanh_bf16_dpp v127, v127 dpp8:[0,0,0,0,0,0,0,0] ; encoding: [0xe9,0x94,0xfe,0x7e,0x7f,0x00,0x00,0x00] // GFX12-ERR: :[[@LINE-2]]:1: error: instruction not supported on this GPU+v_rcp_bf16 v5, v1 dpp8:[7,6,5,4,3,2,1,0]+// GFX1250: v_rcp_bf16_dpp v5, v1 dpp8:[7,6,5,4,3,2,1,0] ; encoding: [0xe9,0xf2,0x0a,0x7e,0x01,0x77,0x39,0x05]+// GFX12-ERR: :[[@LINE-2]]:1: error: instruction not supported on this GPU++v_rcp_bf16 v5, v1 dpp8:[7,6,5,4,3,2,1,0] fi:1+// GFX1250: v_rc...[truncated]

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shiltian commentedJul 15, 2025
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  • Jul 15, 7:58 PM UTC: A user started a stack merge that includes this pull request viaGraphite.
  • Jul 15, 8:00 PM UTC:Graphite rebased this pull request as part of a merge.
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@shiltianshiltianforce-pushed theusers/shiltian/v_rcp_bf16 branch 3 times, most recently from598adfb to66e5246CompareJuly 15, 2025 20:06
Co-authored-by: Mekhanoshin, Stanislav <Stanislav.Mekhanoshin@amd.com>
@shiltianshiltianforce-pushed theusers/shiltian/v_rcp_bf16 branch from66e5246 to64c8a0eCompareJuly 15, 2025 20:09
@shiltianshiltian merged commitdabc8e2 intomainJul 15, 2025
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@shiltianshiltian deleted the users/shiltian/v_rcp_bf16 branchJuly 15, 2025 20:12
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