[llvm] [AMDGPU] Segregate 16-bit fix-sgpr-copies tests. (PR #69353)

[Joe Nash via llvm-commits]

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@@ -0,0 +1,58 @@
+# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 3
+# RUN: llc -march=amdgcn -mcpu=gfx1100 -run-pass=si-fix-sgpr-copies -verify-machineinstrs -o - %s | FileCheck --check-prefix=GCN %s
+
+---
+name:            cmp_f16
+body:             |
+  bb.0.entry:
+    ; GCN-LABEL: name: cmp_f16
+    ; GCN: [[DEF:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF
+    ; GCN-NEXT: [[DEF1:%[0-9]+]]:sreg_32 = IMPLICIT_DEF
+    ; GCN-NEXT: [[V_CVT_F16_U16_e64_:%[0-9]+]]:vgpr_32 = V_CVT_F16_U16_e64 [[DEF]], 0, 0, implicit $mode, implicit $exec
+    ; GCN-NEXT: [[DEF2:%[0-9]+]]:sreg_32 = IMPLICIT_DEF
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Sisyph wrote:

Nit: I just noticed the extra unused DEF2, and the other test cases have a similar extra DEF of an sreg_32. Any idea what that's about?

https://github.com/llvm/llvm-project/pull/69353