[llvm] [AMDGPU] Support v_lshl_add_u64 in gfx1250 (PR #145591)

[Stanislav Mekhanoshin via llvm-commits]

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@@ -0,0 +1,21 @@
+# NOTE: Assertions have been autogenerated by utils/update_mc_test_checks.py UTC_ARGS: --version 5
+# RUN: llvm-mc -triple=amdgcn -mcpu=gfx1250 -mattr=+real-true16 -disassemble -show-encoding < %s | FileCheck -check-prefixes=GFX1250,GFX1250-REAL16 %s
+# RUN: llvm-mc -triple=amdgcn -mcpu=gfx1250 -mattr=-real-true16 -disassemble -show-encoding < %s | FileCheck -check-prefixes=GFX1250,GFX1250-FAKE16 %s
+
+0x02,0x00,0x52,0xd6,0x04,0x0e,0x22,0x04
+# GFX1250: v_lshl_add_u64 v[2:3], s[4:5], v7, v[8:9] ; encoding: [0x02,0x00,0x52,0xd6,0x04,0x0e,0x22,0x04]
+
+0x02,0x00,0x52,0xd6,0x04,0x01,0x05,0x02
+# GFX1250: v_lshl_add_u64 v[2:3], v[4:5], 0, 1     ; encoding: [0x02,0x00,0x52,0xd6,0x04,0x01,0x05,0x02]
+
+0x02,0x00,0x52,0xd6,0x04,0x07,0x09,0x00
+# GFX1250: v_lshl_add_u64 v[2:3], v[4:5], 3, s[2:3] ; encoding: [0x02,0x00,0x52,0xd6,0x04,0x07,0x09,0x00]
+
+0x02,0x00,0x52,0xd6,0x04,0x08,0x09,0x04
+# GFX1250: v_lshl_add_u64 v[2:3], s[4:5], 4, v[2:3] ; encoding: [0x02,0x00,0x52,0xd6,0x04,0x08,0x09,0x04]
+
+0x02,0x00,0x52,0xd6,0x04,0x0f,0xfe,0x03,0x39,0x30,0x00,0x00
+# GFX1250: v_lshl_add_u64 v[2:3], v[4:5], v7, 0x3039 ; encoding: [0x02,0x00,0x52,0xd6,0x04,0x0f,0xfe,0x03,0x39,0x30,0x00,0x00]
+## NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:
+# GFX1250-FAKE16: {{.*}}
+# GFX1250-REAL16: {{.*}}
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rampitec wrote:

Yes, there are 16-bit instructions there. Just not added yet.

https://github.com/llvm/llvm-project/pull/145591