[llvm] [AMDGPU] Switch V_CNDMASK operands to shrink it into VOP2 (PR #135162)

[Mirko Brkušanin via llvm-commits]

================
@@ -851,92 +851,137 @@ unsigned SIShrinkInstructions::getInverseCompareOpcode(MachineInstr &MI) const {
     return AMDGPU::V_CMP_LE_U32_e64;
   case AMDGPU::V_CMP_LT_U32_e64:
     return AMDGPU::V_CMP_GE_U32_e64;
-    // float 32
+    // unsigned 64
+  case AMDGPU::V_CMP_EQ_U64_e64:
+    return AMDGPU::V_CMP_NE_U64_e64;
+  case AMDGPU::V_CMP_NE_U64_e64:
+    return AMDGPU::V_CMP_EQ_U64_e64;
+  case AMDGPU::V_CMP_GE_U64_e64:
+    return AMDGPU::V_CMP_LT_U64_e64;
+  case AMDGPU::V_CMP_LE_U64_e64:
+    return AMDGPU::V_CMP_GT_U64_e64;
+  case AMDGPU::V_CMP_GT_U64_e64:
+    return AMDGPU::V_CMP_LE_U64_e64;
+  case AMDGPU::V_CMP_LT_U64_e64:
+    return AMDGPU::V_CMP_GE_U64_e64;
+  // float 32
   case AMDGPU::V_CMP_EQ_F32_e64:
     return AMDGPU::V_CMP_NEQ_F32_e64;
   case AMDGPU::V_CMP_NEQ_F32_e64:
     return AMDGPU::V_CMP_EQ_F32_e64;
   case AMDGPU::V_CMP_GE_F32_e64:
-    return AMDGPU::V_CMP_LT_F32_e64;
+    return AMDGPU::V_CMP_NGE_F32_e64;
----------------
mbrkusanin wrote:

missing NGE -> GE case and many others

https://github.com/llvm/llvm-project/pull/135162