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[AMDGPU] gfx908 v_pk_fmac_f16 support 

Differential Revision: https://reviews.llvm.org/D64433

llvm-svn: 365573
This commit is contained in:
Stanislav Mekhanoshin 2019-07-09 22:42:24 +00:00
parent 67a06d9495
commit 1e9eae95af
4 changed files with 102 additions and 4 deletions
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4
llvm/lib/Target/AMDGPU/AMDGPU.td
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@ -666,8 +666,8 @@ def FeatureGFX10 : GCNSubtargetFeatureGeneration<"GFX10",
FeatureFlatInstOffsets, FeatureFlatGlobalInsts, FeatureFlatScratchInsts,
FeatureAddNoCarryInsts, FeatureFmaMixInsts, FeatureGFX8Insts,
FeatureNoSdstCMPX, FeatureVscnt, FeatureRegisterBanking,
FeatureVOP3Literal, FeatureDPP8, FeatureNoDataDepHazard,
FeatureDoesNotSupportSRAMECC
FeatureVOP3Literal, FeatureDPP8,
FeatureNoDataDepHazard, FeaturePkFmacF16Inst, FeatureDoesNotSupportSRAMECC
]
>;

10
llvm/lib/Target/AMDGPU/VOP2Instructions.td
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@ -694,10 +694,12 @@ let Constraints = "$vdst = $src2",
defm V_FMAC_F16 : VOP2Inst <"v_fmac_f16", VOP_MAC_F16>;
}
defm V_PK_FMAC_F16 : VOP2Inst<"v_pk_fmac_f16", VOP_V2F16_V2F16_V2F16>;
} // End SubtargetPredicate = isGFX10Plus
let SubtargetPredicate = HasPkFmacF16Inst in {
defm V_PK_FMAC_F16 : VOP2Inst<"v_pk_fmac_f16", VOP_V2F16_V2F16_V2F16>;
} // End SubtargetPredicate = HasPkFmacF16Inst
// Note: 16-bit instructions produce a 0 result in the high 16-bits
// on GFX8 and GFX9 and preserve high 16 bits on GFX10+
def ClearHI16 : OutPatFrag<(ops node:$op),
@ -1548,3 +1550,7 @@ let SubtargetPredicate = HasDot5Insts in {
let SubtargetPredicate = HasDot6Insts in {
defm V_DOT4C_I32_I8 : VOP2_Real_DOT_ACC_gfx10<0x0d>;
}
let SubtargetPredicate = HasPkFmacF16Inst in {
defm V_PK_FMAC_F16 : VOP2_Real_e32_vi<0x3c>;
} // End SubtargetPredicate = HasPkFmacF16Inst

46
llvm/test/MC/AMDGPU/xdl-insts-gfx908.s Normal file
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@ -0,0 +1,46 @@
// RUN: llvm-mc -arch=amdgcn -mcpu=gfx908 -show-encoding %s | FileCheck %s
// CHECK: encoding: [0x01,0x05,0x0a,0x78]
v_pk_fmac_f16 v5, v1, v2
// CHECK: encoding: [0x01,0x05,0xfe,0x79]
v_pk_fmac_f16 v255, v1, v2
// CHECK: encoding: [0xff,0x05,0x0a,0x78]
v_pk_fmac_f16 v5, v255, v2
// CHECK: encoding: [0x01,0x04,0x0a,0x78]
v_pk_fmac_f16 v5, s1, v2
// CHECK: encoding: [0x6a,0x04,0x0a,0x78]
v_pk_fmac_f16 v5, vcc_lo, v2
// CHECK: encoding: [0x6b,0x04,0x0a,0x78]
v_pk_fmac_f16 v5, vcc_hi, v2
// CHECK: encoding: [0x77,0x04,0x0a,0x78]
v_pk_fmac_f16 v5, ttmp11, v2
// CHECK: encoding: [0x7c,0x04,0x0a,0x78]
v_pk_fmac_f16 v5, m0, v2
// CHECK: encoding: [0x7e,0x04,0x0a,0x78]
v_pk_fmac_f16 v5, exec_lo, v2
// CHECK: encoding: [0x7f,0x04,0x0a,0x78]
v_pk_fmac_f16 v5, exec_hi, v2
// CHECK: encoding: [0x80,0x04,0x0a,0x78]
v_pk_fmac_f16 v5, 0, v2
// CHECK: encoding: [0xc1,0x04,0x0a,0x78]
v_pk_fmac_f16 v5, -1, v2
// CHECK: encoding: [0xf0,0x04,0x0a,0x78]
v_pk_fmac_f16 v5, 0.5, v2
// CHECK: encoding: [0xf7,0x04,0x0a,0x78]
v_pk_fmac_f16 v5, -4.0, v2
// CHECK: encoding: [0x01,0xff,0x0b,0x78]
v_pk_fmac_f16 v5, v1, v255

46
llvm/test/MC/Disassembler/AMDGPU/xdl-insts-gfx908.txt Normal file
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@ -0,0 +1,46 @@
# RUN: llvm-mc -arch=amdgcn -mcpu=gfx908 -disassemble -show-encoding < %s | FileCheck %s
# CHECK: v_pk_fmac_f16_e32 v5, v1, v2 ; encoding: [0x01,0x05,0x0a,0x78]
0x01,0x05,0x0a,0x78
# CHECK: v_pk_fmac_f16_e32 v255, v1, v2 ; encoding: [0x01,0x05,0xfe,0x79]
0x01,0x05,0xfe,0x79
# CHECK: v_pk_fmac_f16_e32 v5, v255, v2 ; encoding: [0xff,0x05,0x0a,0x78]
0xff,0x05,0x0a,0x78
# CHECK: v_pk_fmac_f16_e32 v5, s1, v2 ; encoding: [0x01,0x04,0x0a,0x78]
0x01,0x04,0x0a,0x78
# CHECK: v_pk_fmac_f16_e32 v5, vcc_lo, v2 ; encoding: [0x6a,0x04,0x0a,0x78]
0x6a,0x04,0x0a,0x78
# CHECK: v_pk_fmac_f16_e32 v5, vcc_hi, v2 ; encoding: [0x6b,0x04,0x0a,0x78]
0x6b,0x04,0x0a,0x78
# CHECK: v_pk_fmac_f16_e32 v5, ttmp11, v2 ; encoding: [0x77,0x04,0x0a,0x78]
0x77,0x04,0x0a,0x78
# CHECK: v_pk_fmac_f16_e32 v5, m0, v2 ; encoding: [0x7c,0x04,0x0a,0x78]
0x7c,0x04,0x0a,0x78
# CHECK: v_pk_fmac_f16_e32 v5, exec_lo, v2 ; encoding: [0x7e,0x04,0x0a,0x78]
0x7e,0x04,0x0a,0x78
# CHECK: v_pk_fmac_f16_e32 v5, exec_hi, v2 ; encoding: [0x7f,0x04,0x0a,0x78]
0x7f,0x04,0x0a,0x78
# CHECK: v_pk_fmac_f16_e32 v5, 0, v2 ; encoding: [0x80,0x04,0x0a,0x78]
0x80,0x04,0x0a,0x78
# CHECK: v_pk_fmac_f16_e32 v5, -1, v2 ; encoding: [0xc1,0x04,0x0a,0x78]
0xc1,0x04,0x0a,0x78
# CHECK: v_pk_fmac_f16_e32 v5, 0.5, v2 ; encoding: [0xf0,0x04,0x0a,0x78]
0xf0,0x04,0x0a,0x78
# CHECK: v_pk_fmac_f16_e32 v5, -4.0, v2 ; encoding: [0xf7,0x04,0x0a,0x78]
0xf7,0x04,0x0a,0x78
# CHECK: v_pk_fmac_f16_e32 v5, v1, v255 ; encoding: [0x01,0xff,0x0b,0x78]
0x01,0xff,0x0b,0x78