[llvm] [AMDGPU][True16][MC] add true16 mode on a few disasm tests (PR #139094)

Thu May 8 09:30:22 PDT 2025

llvmbot wrote:




@llvm/pr-subscribers-backend-amdgpu

Author: Brox Chen (broxigarchen)

<details>
<summary>Changes</summary>

This is a NFC patch.

applied "+real-true16" on a few disasm test and run update script

---

Patch is 223.95 KiB, truncated to 20.00 KiB below, full version: https://github.com/llvm/llvm-project/pull/139094.diff


6 Files Affected:

- (modified) llvm/test/MC/Disassembler/AMDGPU/bf16_imm.txt (+28-14) 
- (modified) llvm/test/MC/Disassembler/AMDGPU/gfx1150_dasm_features.txt (+4-2) 
- (modified) llvm/test/MC/Disassembler/AMDGPU/gfx11_dasm_vinterp.txt (+34-18) 
- (modified) llvm/test/MC/Disassembler/AMDGPU/gfx11_dasm_vop3_dpp16_from_vop2.txt (+452-115) 
- (modified) llvm/test/MC/Disassembler/AMDGPU/gfx11_dasm_vop3_dpp8_from_vop2.txt (+132-34) 
- (modified) llvm/test/MC/Disassembler/AMDGPU/gfx11_dasm_vop3_from_vop2.txt (+492-124) 


``````````diff

diff --git a/llvm/test/MC/Disassembler/AMDGPU/bf16_imm.txt b/llvm/test/MC/Disassembler/AMDGPU/bf16_imm.txt
index cbebd1c7ce3cb..140e52425fc19 100644
--- a/llvm/test/MC/Disassembler/AMDGPU/bf16_imm.txt
+++ b/llvm/test/MC/Disassembler/AMDGPU/bf16_imm.txt
@@ -1,42 +1,56 @@
 # NOTE: Assertions have been autogenerated by utils/update_mc_test_checks.py UTC_ARGS: --version 5
-# RUN: llvm-mc -triple=amdgcn -mcpu=gfx1100 -mattr=-real-true16 -disassemble -show-encoding < %s | FileCheck -check-prefixes=CHECK %s
-# RUN: llvm-mc -triple=amdgcn -mcpu=gfx1200 -mattr=-real-true16 -disassemble -show-encoding < %s | FileCheck -check-prefixes=CHECK %s
+# RUN: llvm-mc -triple=amdgcn -mcpu=gfx1100 -mattr=+real-true16 -disassemble -show-encoding < %s | FileCheck -check-prefixes=CHECK,CHECK-REAL16 %s
+# RUN: llvm-mc -triple=amdgcn -mcpu=gfx1100 -mattr=-real-true16 -disassemble -show-encoding < %s | FileCheck -check-prefixes=CHECK,CHECK-FAKE16 %s
+# RUN: llvm-mc -triple=amdgcn -mcpu=gfx1200 -mattr=+real-true16 -disassemble -show-encoding < %s | FileCheck -check-prefixes=CHECK,CHECK-REAL16 %s
+# RUN: llvm-mc -triple=amdgcn -mcpu=gfx1200 -mattr=-real-true16 -disassemble -show-encoding < %s | FileCheck -check-prefixes=CHECK,CHECK-FAKE16 %s
 
 0x05,0x00,0x67,0xd6,0x01,0x05,0xfe,0x03,0xc8,0x42,0x00,0x00
-# CHECK: v_dot2_bf16_bf16 v5, v1, v2, 0x42c8     ; encoding: [0x05,0x00,0x67,0xd6,0x01,0x05,0xfe,0x03,0xc8,0x42,0x00,0x00]
+# CHECK-REAL16: v_dot2_bf16_bf16 v5.l, v1, v2, 0x42c8   ; encoding: [0x05,0x00,0x67,0xd6,0x01,0x05,0xfe,0x03,0xc8,0x42,0x00,0x00]
+# CHECK-FAKE16: v_dot2_bf16_bf16 v5, v1, v2, 0x42c8     ; encoding: [0x05,0x00,0x67,0xd6,0x01,0x05,0xfe,0x03,0xc8,0x42,0x00,0x00]
 
 0x05,0x00,0x67,0xd6,0x01,0x05,0xca,0x03
-# CHECK: v_dot2_bf16_bf16 v5, v1, v2, 1.0        ; encoding: [0x05,0x00,0x67,0xd6,0x01,0x05,0xca,0x03]
+# CHECK-REAL16: v_dot2_bf16_bf16 v5.l, v1, v2, 1.0      ; encoding: [0x05,0x00,0x67,0xd6,0x01,0x05,0xca,0x03]
+# CHECK-FAKE16: v_dot2_bf16_bf16 v5, v1, v2, 1.0        ; encoding: [0x05,0x00,0x67,0xd6,0x01,0x05,0xca,0x03]
 
 0x02,0x00,0x67,0xd6,0x00,0xe5,0x09,0x04
-# CHECK: v_dot2_bf16_bf16 v2, v0, 1.0, v2        ; encoding: [0x02,0x00,0x67,0xd6,0x00,0xe5,0x09,0x04]
+# CHECK-REAL16: v_dot2_bf16_bf16 v2.l, v0, 1.0, v2.l    ; encoding: [0x02,0x00,0x67,0xd6,0x00,0xe5,0x09,0x04]
+# CHECK-FAKE16: v_dot2_bf16_bf16 v2, v0, 1.0, v2        ; encoding: [0x02,0x00,0x67,0xd6,0x00,0xe5,0x09,0x04]
 
 0x02,0x00,0x67,0xd6,0xf2,0x00,0x0a,0x04
-# CHECK: v_dot2_bf16_bf16 v2, 1.0, v0, v2        ; encoding: [0x02,0x00,0x67,0xd6,0xf2,0x00,0x0a,0x04]
+# CHECK-REAL16: v_dot2_bf16_bf16 v2.l, 1.0, v0, v2.l    ; encoding: [0x02,0x00,0x67,0xd6,0xf2,0x00,0x0a,0x04]
+# CHECK-FAKE16: v_dot2_bf16_bf16 v2, 1.0, v0, v2        ; encoding: [0x02,0x00,0x67,0xd6,0xf2,0x00,0x0a,0x04]
 
 0x02,0x00,0x67,0xd6,0x00,0xe7,0x09,0x04
-# CHECK: v_dot2_bf16_bf16 v2, v0, -1.0, v2       ; encoding: [0x02,0x00,0x67,0xd6,0x00,0xe7,0x09,0x04]
+# CHECK-REAL16: v_dot2_bf16_bf16 v2.l, v0, -1.0, v2.l   ; encoding: [0x02,0x00,0x67,0xd6,0x00,0xe7,0x09,0x04]
+# CHECK-FAKE16: v_dot2_bf16_bf16 v2, v0, -1.0, v2       ; encoding: [0x02,0x00,0x67,0xd6,0x00,0xe7,0x09,0x04]
 
 0x02,0x00,0x67,0xd6,0x00,0xe1,0x09,0x04
-# CHECK: v_dot2_bf16_bf16 v2, v0, 0.5, v2        ; encoding: [0x02,0x00,0x67,0xd6,0x00,0xe1,0x09,0x04]
+# CHECK-REAL16: v_dot2_bf16_bf16 v2.l, v0, 0.5, v2.l    ; encoding: [0x02,0x00,0x67,0xd6,0x00,0xe1,0x09,0x04]
+# CHECK-FAKE16: v_dot2_bf16_bf16 v2, v0, 0.5, v2        ; encoding: [0x02,0x00,0x67,0xd6,0x00,0xe1,0x09,0x04]
 
 0x02,0x00,0x67,0xd6,0x00,0xe3,0x09,0x04
-# CHECK: v_dot2_bf16_bf16 v2, v0, -0.5, v2       ; encoding: [0x02,0x00,0x67,0xd6,0x00,0xe3,0x09,0x04]
+# CHECK-REAL16: v_dot2_bf16_bf16 v2.l, v0, -0.5, v2.l   ; encoding: [0x02,0x00,0x67,0xd6,0x00,0xe3,0x09,0x04]
+# CHECK-FAKE16: v_dot2_bf16_bf16 v2, v0, -0.5, v2       ; encoding: [0x02,0x00,0x67,0xd6,0x00,0xe3,0x09,0x04]
 
 0x02,0x00,0x67,0xd6,0x00,0xe9,0x09,0x04
-# CHECK: v_dot2_bf16_bf16 v2, v0, 2.0, v2        ; encoding: [0x02,0x00,0x67,0xd6,0x00,0xe9,0x09,0x04]
+# CHECK-REAL16: v_dot2_bf16_bf16 v2.l, v0, 2.0, v2.l    ; encoding: [0x02,0x00,0x67,0xd6,0x00,0xe9,0x09,0x04]
+# CHECK-FAKE16: v_dot2_bf16_bf16 v2, v0, 2.0, v2        ; encoding: [0x02,0x00,0x67,0xd6,0x00,0xe9,0x09,0x04]
 
 0x02,0x00,0x67,0xd6,0x00,0xeb,0x09,0x04
-# CHECK: v_dot2_bf16_bf16 v2, v0, -2.0, v2       ; encoding: [0x02,0x00,0x67,0xd6,0x00,0xeb,0x09,0x04]
+# CHECK-REAL16: v_dot2_bf16_bf16 v2.l, v0, -2.0, v2.l   ; encoding: [0x02,0x00,0x67,0xd6,0x00,0xeb,0x09,0x04]
+# CHECK-FAKE16: v_dot2_bf16_bf16 v2, v0, -2.0, v2       ; encoding: [0x02,0x00,0x67,0xd6,0x00,0xeb,0x09,0x04]
 
 0x02,0x00,0x67,0xd6,0x00,0xed,0x09,0x04
-# CHECK: v_dot2_bf16_bf16 v2, v0, 4.0, v2        ; encoding: [0x02,0x00,0x67,0xd6,0x00,0xed,0x09,0x04]
+# CHECK-REAL16: v_dot2_bf16_bf16 v2.l, v0, 4.0, v2.l    ; encoding: [0x02,0x00,0x67,0xd6,0x00,0xed,0x09,0x04]
+# CHECK-FAKE16: v_dot2_bf16_bf16 v2, v0, 4.0, v2        ; encoding: [0x02,0x00,0x67,0xd6,0x00,0xed,0x09,0x04]
 
 0x02,0x00,0x67,0xd6,0x00,0xef,0x09,0x04
-# CHECK: v_dot2_bf16_bf16 v2, v0, -4.0, v2       ; encoding: [0x02,0x00,0x67,0xd6,0x00,0xef,0x09,0x04]
+# CHECK-REAL16: v_dot2_bf16_bf16 v2.l, v0, -4.0, v2.l   ; encoding: [0x02,0x00,0x67,0xd6,0x00,0xef,0x09,0x04]
+# CHECK-FAKE16: v_dot2_bf16_bf16 v2, v0, -4.0, v2       ; encoding: [0x02,0x00,0x67,0xd6,0x00,0xef,0x09,0x04]
 
 0x02,0x00,0x67,0xd6,0x00,0xf1,0x09,0x04
-# CHECK: v_dot2_bf16_bf16 v2, v0, 0.15915494, v2 ; encoding: [0x02,0x00,0x67,0xd6,0x00,0xf1,0x09,0x04]
+# CHECK-REAL16: v_dot2_bf16_bf16 v2.l, v0, 0.15915494, v2.l ; encoding: [0x02,0x00,0x67,0xd6,0x00,0xf1,0x09,0x04]
+# CHECK-FAKE16: v_dot2_bf16_bf16 v2, v0, 0.15915494, v2 ; encoding: [0x02,0x00,0x67,0xd6,0x00,0xf1,0x09,0x04]
 
 0x02,0x40,0x1a,0xcc,0x01,0x01,0x09,0x1c
 # CHECK: v_dot2_f32_bf16 v2, v1, 0, v2           ; encoding: [0x02,0x40,0x1a,0xcc,0x01,0x01,0x09,0x1c]
diff --git a/llvm/test/MC/Disassembler/AMDGPU/gfx1150_dasm_features.txt b/llvm/test/MC/Disassembler/AMDGPU/gfx1150_dasm_features.txt
index 13e0d382a4304..59cf222a79456 100644
--- a/llvm/test/MC/Disassembler/AMDGPU/gfx1150_dasm_features.txt
+++ b/llvm/test/MC/Disassembler/AMDGPU/gfx1150_dasm_features.txt
@@ -1,5 +1,6 @@
 # NOTE: Assertions have been autogenerated by utils/update_mc_test_checks.py UTC_ARGS: --version 5
-# RUN: llvm-mc -triple=amdgcn -mcpu=gfx1150 -mattr=-real-true16 -disassemble -show-encoding < %s | FileCheck -check-prefixes=GFX1150 %s
+# RUN: llvm-mc -triple=amdgcn -mcpu=gfx1150 -mattr=+real-true16 -disassemble -show-encoding < %s | FileCheck -check-prefixes=GFX1150,GFX1150-REAL16 %s
+# RUN: llvm-mc -triple=amdgcn -mcpu=gfx1150 -mattr=-real-true16 -disassemble -show-encoding < %s | FileCheck -check-prefixes=GFX1150,GFX1150-FAKE16 %s
 
 0x05,0x00,0x55,0xd6,0xfa,0x04,0x0c,0x04,0x01,0x1b,0x00,0xff
 # GFX1150: v_add3_u32_e64_dpp v5, v1, s2, v3 quad_perm:[3,2,1,0] row_mask:0xf bank_mask:0xf ; encoding: [0x05,0x00,0x55,0xd6,0xfa,0x04,0x0c,0x04,0x01,0x1b,0x00,0xff]
@@ -23,7 +24,8 @@
 # GFX1150: v_add_f32_e64_dpp v5, v1, s2 row_mirror row_mask:0xf bank_mask:0xf ; encoding: [0x05,0x00,0x03,0xd5,0xfa,0x04,0x00,0x00,0x01,0x40,0x01,0xff]
 
 0x05,0x58,0x49,0xd6,0xfa,0x04,0xd0,0x03,0x01,0x55,0x00,0xff
-# GFX1150: v_min3_f16_e64_dpp v5, v1, s2, 2.0 op_sel:[1,1,0,1] quad_perm:[1,1,1,1] row_mask:0xf bank_mask:0xf ; encoding: [0x05,0x58,0x49,0xd6,0xfa,0x04,0xd0,0x03,0x01,0x55,0x00,0xff]
+# GFX1150-REAL16: v_min3_f16_e64_dpp v5.h, v1.h, s2, 2.0 op_sel:[1,1,0,1] quad_perm:[1,1,1,1] row_mask:0xf bank_mask:0xf ; encoding: [0x05,0x58,0x49,0xd6,0xfa,0x04,0xd0,0x03,0x01,0x55,0x00,0xff]
+# GFX1150-FAKE16: v_min3_f16_e64_dpp v5, v1, s2, 2.0 op_sel:[1,1,0,1] quad_perm:[1,1,1,1] row_mask:0xf bank_mask:0xf ; encoding: [0x05,0x58,0x49,0xd6,0xfa,0x04,0xd0,0x03,0x01,0x55,0x00,0xff]
 
 0xfa,0x04,0x26,0x7c,0x01,0x40,0x01,0xff
 # GFX1150: v_cmp_le_f32 vcc_lo, v1, v2 row_mirror row_mask:0xf bank_mask:0xf ; encoding: [0xfa,0x04,0x26,0x7c,0x01,0x40,0x01,0xff]
diff --git a/llvm/test/MC/Disassembler/AMDGPU/gfx11_dasm_vinterp.txt b/llvm/test/MC/Disassembler/AMDGPU/gfx11_dasm_vinterp.txt
index 789424ef80eaf..1b743f1156579 100644
--- a/llvm/test/MC/Disassembler/AMDGPU/gfx11_dasm_vinterp.txt
+++ b/llvm/test/MC/Disassembler/AMDGPU/gfx11_dasm_vinterp.txt
@@ -1,5 +1,6 @@
 # NOTE: Assertions have been autogenerated by utils/update_mc_test_checks.py UTC_ARGS: --version 5
-# RUN: llvm-mc -triple=amdgcn -mcpu=gfx1100 -mattr=-real-true16 -disassemble -show-encoding < %s | FileCheck -strict-whitespace -check-prefixes=GFX11 %s
+# RUN: llvm-mc -triple=amdgcn -mcpu=gfx1100 -mattr=+real-true16 -disassemble -show-encoding < %s | FileCheck -strict-whitespace -check-prefixes=GFX11,GFX11-REAL16 %s
+# RUN: llvm-mc -triple=amdgcn -mcpu=gfx1100 -mattr=-real-true16 -disassemble -show-encoding < %s | FileCheck -strict-whitespace -check-prefixes=GFX11,GFX11-FAKE16 %s
 
 0x00,0x05,0x00,0xcd,0x01,0x05,0x0e,0x04
 # GFX11: v_interp_p10_f32 v0, v1, v2, v3 wait_exp:5 ; encoding: [0x00,0x05,0x00,0xcd,0x01,0x05,0x0e,0x04]
@@ -26,50 +27,65 @@
 # GFX11: v_interp_p2_f32 v0, v1, v2, -v3 wait_exp:0 ; encoding: [0x00,0x00,0x01,0xcd,0x01,0x05,0x0e,0x84]
 
 0x00,0x05,0x02,0xcd,0x01,0x05,0x0e,0x04
-# GFX11: v_interp_p10_f16_f32 v0, v1, v2, v3 wait_exp:5 ; encoding: [0x00,0x05,0x02,0xcd,0x01,0x05,0x0e,0x04]
+# GFX11-REAL16: v_interp_p10_f16_f32 v0, v1.l, v2, v3.l wait_exp:5 ; encoding: [0x00,0x05,0x02,0xcd,0x01,0x05,0x0e,0x04]
+# GFX11-FAKE16: v_interp_p10_f16_f32 v0, v1, v2, v3 wait_exp:5 ; encoding: [0x00,0x05,0x02,0xcd,0x01,0x05,0x0e,0x04]
 
 0x00,0x00,0x02,0xcd,0x01,0x05,0x0e,0x24
-# GFX11: v_interp_p10_f16_f32 v0, -v1, v2, v3 wait_exp:0 ; encoding: [0x00,0x00,0x02,0xcd,0x01,0x05,0x0e,0x24]
+# GFX11-REAL16: v_interp_p10_f16_f32 v0, -v1.l, v2, v3.l wait_exp:0 ; encoding: [0x00,0x00,0x02,0xcd,0x01,0x05,0x0e,0x24]
+# GFX11-FAKE16: v_interp_p10_f16_f32 v0, -v1, v2, v3 wait_exp:0 ; encoding: [0x00,0x00,0x02,0xcd,0x01,0x05,0x0e,0x24]
 
 0x00,0x00,0x02,0xcd,0x01,0x05,0x0e,0x44
-# GFX11: v_interp_p10_f16_f32 v0, v1, -v2, v3 wait_exp:0 ; encoding: [0x00,0x00,0x02,0xcd,0x01,0x05,0x0e,0x44]
+# GFX11-REAL16: v_interp_p10_f16_f32 v0, v1.l, -v2, v3.l wait_exp:0 ; encoding: [0x00,0x00,0x02,0xcd,0x01,0x05,0x0e,0x44]
+# GFX11-FAKE16: v_interp_p10_f16_f32 v0, v1, -v2, v3 wait_exp:0 ; encoding: [0x00,0x00,0x02,0xcd,0x01,0x05,0x0e,0x44]
 
 0x00,0x00,0x02,0xcd,0x01,0x05,0x0e,0x84
-# GFX11: v_interp_p10_f16_f32 v0, v1, v2, -v3 wait_exp:0 ; encoding: [0x00,0x00,0x02,0xcd,0x01,0x05,0x0e,0x84]
+# GFX11-REAL16: v_interp_p10_f16_f32 v0, v1.l, v2, -v3.l wait_exp:0 ; encoding: [0x00,0x00,0x02,0xcd,0x01,0x05,0x0e,0x84]
+# GFX11-FAKE16: v_interp_p10_f16_f32 v0, v1, v2, -v3 wait_exp:0 ; encoding: [0x00,0x00,0x02,0xcd,0x01,0x05,0x0e,0x84]
 
 0x00,0x05,0x03,0xcd,0x01,0x05,0x0e,0x04
-# GFX11: v_interp_p2_f16_f32 v0, v1, v2, v3 wait_exp:5 ; encoding: [0x00,0x05,0x03,0xcd,0x01,0x05,0x0e,0x04]
+# GFX11-REAL16: v_interp_p2_f16_f32 v0.l, v1.l, v2, v3 wait_exp:5 ; encoding: [0x00,0x05,0x03,0xcd,0x01,0x05,0x0e,0x04]
+# GFX11-FAKE16: v_interp_p2_f16_f32 v0, v1, v2, v3 wait_exp:5 ; encoding: [0x00,0x05,0x03,0xcd,0x01,0x05,0x0e,0x04]
 
 0x00,0x00,0x03,0xcd,0x01,0x05,0x0e,0x24
-# GFX11: v_interp_p2_f16_f32 v0, -v1, v2, v3 wait_exp:0 ; encoding: [0x00,0x00,0x03,0xcd,0x01,0x05,0x0e,0x24]
+# GFX11-REAL16: v_interp_p2_f16_f32 v0.l, -v1.l, v2, v3 wait_exp:0 ; encoding: [0x00,0x00,0x03,0xcd,0x01,0x05,0x0e,0x24]
+# GFX11-FAKE16: v_interp_p2_f16_f32 v0, -v1, v2, v3 wait_exp:0 ; encoding: [0x00,0x00,0x03,0xcd,0x01,0x05,0x0e,0x24]
 
 0x00,0x00,0x03,0xcd,0x01,0x05,0x0e,0x44
-# GFX11: v_interp_p2_f16_f32 v0, v1, -v2, v3 wait_exp:0 ; encoding: [0x00,0x00,0x03,0xcd,0x01,0x05,0x0e,0x44]
+# GFX11-REAL16: v_interp_p2_f16_f32 v0.l, v1.l, -v2, v3 wait_exp:0 ; encoding: [0x00,0x00,0x03,0xcd,0x01,0x05,0x0e,0x44]
+# GFX11-FAKE16: v_interp_p2_f16_f32 v0, v1, -v2, v3 wait_exp:0 ; encoding: [0x00,0x00,0x03,0xcd,0x01,0x05,0x0e,0x44]
 
 0x00,0x00,0x03,0xcd,0x01,0x05,0x0e,0x84
-# GFX11: v_interp_p2_f16_f32 v0, v1, v2, -v3 wait_exp:0 ; encoding: [0x00,0x00,0x03,0xcd,0x01,0x05,0x0e,0x84]
+# GFX11-REAL16: v_interp_p2_f16_f32 v0.l, v1.l, v2, -v3 wait_exp:0 ; encoding: [0x00,0x00,0x03,0xcd,0x01,0x05,0x0e,0x84]
+# GFX11-FAKE16: v_interp_p2_f16_f32 v0, v1, v2, -v3 wait_exp:0 ; encoding: [0x00,0x00,0x03,0xcd,0x01,0x05,0x0e,0x84]
 
 0x00,0x05,0x04,0xcd,0x01,0x05,0x0e,0x04
-# GFX11: v_interp_p10_rtz_f16_f32 v0, v1, v2, v3 wait_exp:5 ; encoding: [0x00,0x05,0x04,0xcd,0x01,0x05,0x0e,0x04]
+# GFX11-REAL16: v_interp_p10_rtz_f16_f32 v0, v1.l, v2, v3.l wait_exp:5 ; encoding: [0x00,0x05,0x04,0xcd,0x01,0x05,0x0e,0x04]
+# GFX11-FAKE16: v_interp_p10_rtz_f16_f32 v0, v1, v2, v3 wait_exp:5 ; encoding: [0x00,0x05,0x04,0xcd,0x01,0x05,0x0e,0x04]
 
 0x00,0x00,0x04,0xcd,0x01,0x05,0x0e,0x24
-# GFX11: v_interp_p10_rtz_f16_f32 v0, -v1, v2, v3 wait_exp:0 ; encoding: [0x00,0x00,0x04,0xcd,0x01,0x05,0x0e,0x24]
+# GFX11-REAL16: v_interp_p10_rtz_f16_f32 v0, -v1.l, v2, v3.l wait_exp:0 ; encoding: [0x00,0x00,0x04,0xcd,0x01,0x05,0x0e,0x24]
+# GFX11-FAKE16: v_interp_p10_rtz_f16_f32 v0, -v1, v2, v3 wait_exp:0 ; encoding: [0x00,0x00,0x04,0xcd,0x01,0x05,0x0e,0x24]
 
 0x00,0x00,0x04,0xcd,0x01,0x05,0x0e,0x44
-# GFX11: v_interp_p10_rtz_f16_f32 v0, v1, -v2, v3 wait_exp:0 ; encoding: [0x00,0x00,0x04,0xcd,0x01,0x05,0x0e,0x44]
+# GFX11-REAL16: v_interp_p10_rtz_f16_f32 v0, v1.l, -v2, v3.l wait_exp:0 ; encoding: [0x00,0x00,0x04,0xcd,0x01,0x05,0x0e,0x44]
+# GFX11-FAKE16: v_interp_p10_rtz_f16_f32 v0, v1, -v2, v3 wait_exp:0 ; encoding: [0x00,0x00,0x04,0xcd,0x01,0x05,0x0e,0x44]
 
 0x00,0x00,0x04,0xcd,0x01,0x05,0x0e,0x84
-# GFX11: v_interp_p10_rtz_f16_f32 v0, v1, v2, -v3 wait_exp:0 ; encoding: [0x00,0x00,0x04,0xcd,0x01,0x05,0x0e,0x84]
+# GFX11-REAL16: v_interp_p10_rtz_f16_f32 v0, v1.l, v2, -v3.l wait_exp:0 ; encoding: [0x00,0x00,0x04,0xcd,0x01,0x05,0x0e,0x84]
+# GFX11-FAKE16: v_interp_p10_rtz_f16_f32 v0, v1, v2, -v3 wait_exp:0 ; encoding: [0x00,0x00,0x04,0xcd,0x01,0x05,0x0e,0x84]
 
 0x00,0x05,0x05,0xcd,0x01,0x05,0x0e,0x04
-# GFX11: v_interp_p2_rtz_f16_f32 v0, v1, v2, v3 wait_exp:5 ; encoding: [0x00,0x05,0x05,0xcd,0x01,0x05,0x0e,0x04]
+# GFX11-REAL16: v_interp_p2_rtz_f16_f32 v0.l, v1.l, v2, v3 wait_exp:5 ; encoding: [0x00,0x05,0x05,0xcd,0x01,0x05,0x0e,0x04]
+# GFX11-FAKE16: v_interp_p2_rtz_f16_f32 v0, v1, v2, v3 wait_exp:5 ; encoding: [0x00,0x05,0x05,0xcd,0x01,0x05,0x0e,0x04]
 
 0x00,0x00,0x05,0xcd,0x01,0x05,0x0e,0x24
-# GFX11: v_interp_p2_rtz_f16_f32 v0, -v1, v2, v3 wait_exp:0 ; encoding: [0x00,0x00,0x05,0xcd,0x01,0x05,0x0e,0x24]
+# GFX11-REAL16: v_interp_p2_rtz_f16_f32 v0.l, -v1.l, v2, v3 wait_exp:0 ; encoding: [0x00,0x00,0x05,0xcd,0x01,0x05,0x0e,0x24]
+# GFX11-FAKE16: v_interp_p2_rtz_f16_f32 v0, -v1, v2, v3 wait_exp:0 ; encoding: [0x00,0x00,0x05,0xcd,0x01,0x05,0x0e,0x24]
 
 0x00,0x00,0x05,0xcd,0x01,0x05,0x0e,0x44
-# GFX11: v_interp_p2_rtz_f16_f32 v0, v1, -v2, v3 wait_exp:0 ; encoding: [0x00,0x00,0x05,0xcd,0x01,0x05,0x0e,0x44]
+# GFX11-REAL16: v_interp_p2_rtz_f16_f32 v0.l, v1.l, -v2, v3 wait_exp:0 ; encoding: [0x00,0x00,0x05,0xcd,0x01,0x05,0x0e,0x44]
+# GFX11-FAKE16: v_interp_p2_rtz_f16_f32 v0, v1, -v2, v3 wait_exp:0 ; encoding: [0x00,0x00,0x05,0xcd,0x01,0x05,0x0e,0x44]
 
 0x00,0x00,0x05,0xcd,0x01,0x05,0x0e,0x84
-# GFX11: v_interp_p2_rtz_f16_f32 v0, v1, v2, -v3 wait_exp:0 ; encoding: [0x00,0x00,0x05,0xcd,0x01,0x05,0x0e,0x84]
-
+# GFX11-REAL16: v_interp_p2_rtz_f16_f32 v0.l, v1.l, v2, -v3 wait_exp:0 ; encoding: [0x00,0x00,0x05,0xcd,0x01,0x05,0x0e,0x84]
+# GFX11-FAKE16: v_interp_p2_rtz_f16_f32 v0, v1, v2, -v3 wait_exp:0 ; encoding: [0x00,0x00,0x05,0xcd,0x01,0x05,0x0e,0x84]
diff --git a/llvm/test/MC/Disassembler/AMDGPU/gfx11_dasm_vop3_dpp16_from_vop2.txt b/llvm/test/MC/Disassembler/AMDGPU/gfx11_dasm_vop3_dpp16_from_vop2.txt
index 1c953e364c632..243d664b6edca 100644
--- a/llvm/test/MC/Disassembler/AMDGPU/gfx11_dasm_vop3_dpp16_from_vop2.txt
+++ b/llvm/test/MC/Disassembler/AMDGPU/gfx11_dasm_vop3_dpp16_from_vop2.txt
@@ -1,7 +1,8 @@
 # NOTE: Assertions have been autogenerated by utils/update_mc_test_checks.py UTC_ARGS: --version 5
-
-# RUN: llvm-mc -triple=amdgcn -mcpu=gfx1100 -mattr=-real-true16 -disassemble -show-encoding < %s | FileCheck -check-prefixes=GFX11,W32 %s
-# RUN: llvm-mc -triple=amdgcn -mcpu=gfx1100 -mattr=+wavefrontsize64,-real-true16 -disassemble -show-encoding < %s | FileCheck -check-prefixes=GFX11,W64 %s
+# RUN: llvm-mc -triple=amdgcn -mcpu=gfx1100 -mattr=+real-true16 -disassemble -show-encoding < %s | FileCheck -check-prefixes=GFX11,W32,W32-REAL16 %s
+# RUN: llvm-mc -triple=amdgcn -mcpu=gfx1100 -mattr=-real-true16 -disassemble -show-encoding < %s | FileCheck -check-prefixes=GFX11,W32,W32-FAKE16 %s
+# RUN: llvm-mc -triple=amdgcn -mcpu=gfx1100 -mattr=+wavefrontsize64,+real-true16 -disassemble -show-encoding < %s | FileCheck -check-prefixes=GFX11,W64,W64-REAL16 %s
+# RUN: llvm-mc -triple=amdgcn -mcpu=gfx1100 -mattr=+wavefrontsize64,-real-true16 -disassemble -show-encoding < %s | FileCheck -check-prefixes=GFX11,W64,W64-FAKE16 %s
 
 0x05,0x0c,0x20,0xd5,0xfa,0x04,0x1a,0x00,0x01,0x1b,0x00,0xff
 # W32: v_add_co_ci_u32_e64_dpp v5, s12, v1, v2, s6 quad_perm:[3,2,1,0] row_mask:0xf bank_mask:0xf ; encoding: [0x05,0x0c,0x20,0xd5,0xfa,0x04,0x1a,0x00,0x01,0x1b,0x00,0xff]
@@ -59,46 +60,88 @@
 # GFX11: v_add_co_ci_u32_e64_dpp v255, null, v255, v255, null clamp row_xmask:15 row_mask:0x3 bank_mask:0x0 bound_ctrl:1 fi:1 ; encoding: [0xff,0xfc,0x20,0xd5,0xfa,0xfe,0xf3,0x01,0xff,0x6f,0x0d,0x30]
 
 0x05,0x00,0x32,0xd5,0xfa,0x04,0x02,0x00,0x01,0x1b,0x00,0xff
-# GFX11: v_add_f16_e64_dpp v5, v1, v2 quad_perm:[3,2,1,0] row_mask:0xf bank_mask:0xf ; encoding: [0x05,0x00,0x32,0xd5,0xfa,0x04,0x02,0x00,0x01,0x1b,0x00,0xff]
+# W32-REAL16: v_add_f16_e64_dpp v5.l, v1.l, v2.l quad_perm:[3,2,1,0] row_mask:0xf bank_mask:0xf ; encoding: [0x05,0x00,0x32,0xd5,0xfa,0x04,0x02,0x00,0x01,0x1b,0x00,0xff]
+# W32-FAKE16: v_add_f16_e64_dpp v5, v1, v2 quad_perm:[3,2,1,0] row_mask:0xf bank_mask:0xf ; encoding: [0x05,0x00,0x32,0xd5,0xfa,0x04,0x02,0x00,0x01,0x1b,0x00,0xff]
+# W64-REAL16: v_add_f16_e64_dpp v5.l, v1.l, v2.l quad_perm:[3,2,1,0] row_mask:0xf bank_mask:0xf ; encoding: [0x05,0x00,0x32,0xd5,0xfa,0x04,0x02,0x00,0x01,0x1b,0x00,0xff]
+# W64-FAKE16: v_add_f16_e64_dpp v5, v1, v2 quad_perm:[3,2,1,0] row_mask:0xf bank_mask:0xf ; encoding: [0x05,0x00,0x32,0xd5,0xfa,0x04,0x02,0x00,0x01,0x1b,0x00,0xff]
 
 0x05,0x00,0x32,0xd5,0xfa,0x04,0x02,0x00,0x01,0xe4,0x00,0xff
-# GFX11: v_add_f16_e64_dpp v5, v1, v2 quad_perm:[0,1,2,3] row_mask:0xf bank_mask:0xf ; encoding: [0x05,0x00,0x32,0xd5,0xfa,0x04,0x02,0x00,0x01,0xe4,0x00,0xff]
+# W32-REAL16: v_add_f16_e64_dpp v5.l, v1.l, v2.l quad_perm:[0,1,2,3] row_mask:0xf bank_mask:0xf ; encoding: [0x05,0x00,0x32,0xd5,0xfa,0x04,0x02,0x00,0x01,0xe4,0x00,0xff]
+# W32-FAKE16: v_add_f16_e64_dpp v5, v1, v2 quad_perm:[0,1,2,3] row_mask:0xf bank_mask:0xf ; encoding: [0x05,0x00,0x32,0xd5,0xfa,0x04,0x02,0x00,0x01,0xe4,0x00,0xff]
+# W64-REAL16: v_add_f16_e64_dpp v5.l, v1.l, v2.l quad_perm:[0,1,2,3] row_mask:0xf bank_mask:0xf ; encoding: [0x05,0x00,0x32,0xd5,0xfa,0x04,0x02,0x00,0x01,0xe4,0x00,0xff]
+# W64-FAKE16: v_add_f16_e64_dpp v5, v1, v2 quad_perm:[0,1,2,3] row_mask:0xf bank_mask:0xf ; encoding: [0x05,0x00,0x32,0xd5,0xfa,0x04,0x02,0x00,0x01,0xe4,0x00,0xff]
 
 0x05,0x00,0x32,0xd5,0xfa,0x04,0x02,0x00,0x01,0x40,0x01,0xff
-# GFX11: v_add_f16_e64_dpp v5, v1, v2 row_mirror row_mask:0xf bank_mask:0xf ; encoding: [0x05,0x00,0x32,0xd5,0xfa,0x04,0x02,0x00,0x01,0x40,0x01,0xff]
+# W32-REAL16: v_add_f16_e64_dpp v5.l, v1.l, v2.l row_mirror row_mask:0xf bank_mask:0xf ; encoding: [0x05,0x00,0x32,0xd5,0xfa,0x04,0x02,0x00,0x01,0x40,0x01,0xff]
+# W32-FAKE16: v_add_f16_e64_dpp v5, v1, v2 row_mirror row_mask:0xf bank_mask:0xf ; encoding: [0x05,0x00,0x32,0xd5,0xfa,0x04,0x02,0x00,0x01,0x40,0x01,0xff]
+# W64-REAL16: v_add_f16_e64_dpp v5.l, v1.l, v2.l row_mirror row_mask:0xf bank_mask:0xf ; encoding: [0x05,0x00,0x32,0xd5,0xfa,0x04,0x02,0x00,0x01,0x40,0x01,0xff]
+# W64-FAKE16: v_add_f16_e64_dpp v5, v1, v2 row_mirror row_mask:0xf bank_mask:0xf ; encoding: [0x05,0x00,0x32,0xd5,0xfa,0x04,0x02,0x00,0x01,0x40,0x01,0xff]
 
 0x05,0x00,0x32,0xd5,0xfa,0x04,0x02,0x00,0x01,0x41,0x01,0xff
-# GFX11: v_add_f16_e64_dpp v5, v1, v2 row_half_mirror row_mask:0xf bank_mask:0xf ; encoding: [0x05,0x00,0x32,0xd5,0xfa,0x04,0x02,0x00,0x01,0x41,0x01,0xff]
+# W32-REAL16: v_add_f16_e64_dpp v5.l, v1.l, v2.l row_half_mirror row_mask:0xf bank_mask:0xf ; encoding: [0x05,0x00,0x32,0xd5,0xfa,0x04,0x02,0x00,0x01,0x41,0x01,0xff]
+# W32-FAKE16: v_add_f16_e64_dpp v5, v1, v2 row_hal...
[truncated]

``````````

</details>


https://github.com/llvm/llvm-project/pull/139094
