llvm/test/MC/AMDGPU/gfx10-constant-bus.s

   1 // RUN: not llvm-mc -triple=amdgcn -mcpu=gfx1010 -show-encoding %s | FileCheck -check-prefixes=GCN,GFX10 %s
   2 // RUN: not llvm-mc -triple=amdgcn -mcpu=gfx1010 %s 2>&1 | FileCheck -check-prefixes=GCN-ERR --implicit-check-not=error: %s
   3 // RUN: not llvm-mc -triple=amdgcn -mcpu=gfx1100 -show-encoding %s | FileCheck -check-prefixes=GCN,GFX11 %s
   4 // RUN: not llvm-mc -triple=amdgcn -mcpu=gfx1100 %s 2>&1 | FileCheck -check-prefixes=GCN-ERR,GFX11-ERR --implicit-check-not=error: %s
   5
   6 //-----------------------------------------------------------------------------------------
   7 // On GFX10 we can use two scalar operands (except for 64-bit shift instructions)
   8
   9 v_add_f32 v0, s0, s1
  10 // GCN: v_add_f32_e64 v0, s0, s1        ; encoding: [0x00,0x00,0x03,0xd5,0x00,0x02,0x00,0x00]
  11
  12 v_madak_f32 v0, s0, v1, 42.42
  13 // GFX10: v_madak_f32 v0, s0, v1, 0x4229ae14 ; encoding: [0x00,0x02,0x00,0x42,0x14,0xae,0x29,0x42]
  14 // GFX11-ERR: :[[@LINE-2]]:{{[0-9]+}}: error: instruction not supported on this GPU
  15
  16 v_med3_f32 v0, s0, s0, s1
  17 // GFX10: v_med3_f32 v0, s0, s0, s1       ; encoding: [0x00,0x00,0x57,0xd5,0x00,0x00,0x04,0x00]
  18 // GFX11: v_med3_f32 v0, s0, s0, s1       ; encoding: [0x00,0x00,0x1f,0xd6,0x00,0x00,0x04,0x00]
  19
  20 //-----------------------------------------------------------------------------------------
  21 // 64-bit shift instructions can use only one scalar value input
  22
  23 v_ashrrev_i64 v[0:1], 0x100, s[0:1]
  24 // GCN-ERR: :[[@LINE-1]]:{{[0-9]+}}: error: invalid operand (violates constant bus restrictions)
  25
  26 v_ashrrev_i64 v[0:1], s2, s[0:1]
  27 // GCN-ERR: :[[@LINE-1]]:{{[0-9]+}}: error: invalid operand (violates constant bus restrictions)
  28
  29 //-----------------------------------------------------------------------------------------
  30 // v_div_fmas implicitly reads VCC, so only one scalar operand is possible
  31
  32 v_div_fmas_f32 v5, s3, s3, s3
  33 // GFX10: v_div_fmas_f32 v5, s3, s3, s3   ; encoding: [0x05,0x00,0x6f,0xd5,0x03,0x06,0x0c,0x00]
  34 // GFX11: v_div_fmas_f32 v5, s3, s3, s3   ; encoding: [0x05,0x00,0x37,0xd6,0x03,0x06,0x0c,0x00]
  35
  36 v_div_fmas_f32 v5, s3, s3, s2
  37 // GCN-ERR: :[[@LINE-1]]:{{[0-9]+}}: error: invalid operand (violates constant bus restrictions)
  38
  39 v_div_fmas_f32 v5, s3, 0x123, v3
  40 // GCN-ERR: :[[@LINE-1]]:{{[0-9]+}}: error: invalid operand (violates constant bus restrictions)
  41
  42 v_div_fmas_f64 v[5:6], 0x12345678, 0x12345678, 0x12345678
  43 // GFX10: v_div_fmas_f64 v[5:6], 0x12345678, 0x12345678, 0x12345678 ; encoding: [0x05,0x00,0x70,0xd5,0xff,0xfe,0xfd,0x03,0x78,0x56,0x34,0x12]
  44 // GFX11: v_div_fmas_f64 v[5:6], 0x12345678, 0x12345678, 0x12345678 ; encoding: [0x05,0x00,0x38,0xd6,0xff,0xfe,0xfd,0x03,0x78,0x56,0x34,0x12]
  45
  46 v_div_fmas_f64 v[5:6], v[1:2], s[2:3], v[3:4]
  47 // GFX10: v_div_fmas_f64 v[5:6], v[1:2], s[2:3], v[3:4] ; encoding: [0x05,0x00,0x70,0xd5,0x01,0x05,0x0c,0x04]
  48 // GFX11: v_div_fmas_f64 v[5:6], v[1:2], s[2:3], v[3:4] ; encoding: [0x05,0x00,0x38,0xd6,0x01,0x05,0x0c,0x04]
  49
  50 v_div_fmas_f64 v[5:6], v[1:2], s[2:3], 0x123456
  51 // GCN-ERR: :[[@LINE-1]]:{{[0-9]+}}: error: invalid operand (violates constant bus restrictions)
  52
  53 //-----------------------------------------------------------------------------------------
  54 // v_mad_u64_u32 has operands of different sizes.
  55 // When these operands are literals, they are counted as 2 scalar values even if literals are identical.
  56
  57 v_lshlrev_b64 v[5:6], 0x3f717273, 0x3f717273
  58 // GCN-ERR: :[[@LINE-1]]:{{[0-9]+}}: error: invalid operand (violates constant bus restrictions)
  59
  60 v_mad_u64_u32 v[5:6], s12, v1, 0x12345678, 0x12345678
  61 // GFX10: v_mad_u64_u32 v[5:6], s12, v1, 0x12345678, 0x12345678 ; encoding: [0x05,0x0c,0x76,0xd5,0x01,0xff,0xfd,0x03,0x78,0x56,0x34,0x12]
  62 // GFX11: v_mad_u64_u32 v[5:6], s12, v1, 0x12345678, 0x12345678 ; encoding: [0x05,0x0c,0xfe,0xd6,0x01,0xff,0xfd,0x03,0x78,0x56,0x34,0x12]
  63
  64 v_mad_u64_u32 v[5:6], s12, s1, 0x12345678, 0x12345678
  65 // GCN-ERR: :[[@LINE-1]]:{{[0-9]+}}: error: invalid operand (violates constant bus restrictions)
  66
  67 //-----------------------------------------------------------------------------------------
  68 // null is free
  69
  70 v_bfe_u32 v5, s1, s2, null
  71 // GFX10: v_bfe_u32 v5, s1, s2, null      ; encoding: [0x05,0x00,0x48,0xd5,0x01,0x04,0xf4,0x01]
  72 // GFX11: v_bfe_u32 v5, s1, s2, null      ; encoding: [0x05,0x00,0x10,0xd6,0x01,0x04,0xf0,0x01]