[llvm] [LLVM][TableGen] Check overloaded intrinsic mangling suffix conflicts (PR #110324)

[Rahul Joshi via llvm-commits]

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@@ -0,0 +1,43 @@
+// RUN: llvm-tblgen -gen-intrinsic-enums -I %p/../../include %s -DTEST_INTRINSICS_SUPPRESS_DEFS | FileCheck %s
+// RUN: not llvm-tblgen -gen-intrinsic-enums -I %p/../../include %s -DTEST_INTRINSICS_SUPPRESS_DEFS -DCONFLICT 2>&1 | FileCheck %s -DFILE=%s --check-prefix=CHECK-CONFLICT
+
+
+include "llvm/IR/Intrinsics.td"
+// CHECK: foo = 1,
+def int_foo : Intrinsic<[llvm_any_ty]>;
+
+// No conflicts, since .bar is not a vaid mangled type.
+// CHECK: foo_bar,
+def int_foo_bar : Intrinsic<[llvm_i32_ty]>;
+
+// CHECK: foo_bar_f32,
+def int_foo_bar_f32 : Intrinsic<[llvm_i32_ty]>;
+
+#ifdef CONFLICT
+// CHECK-CONFLICT: error: intrinsic `llvm.foo.a3` cannot share prefix `llvm.foo.a3` with another overloaded intrinsic `llvm.foo`
+// CHECK-CONFLICT: error: intrinsic `llvm.foo.bf16` cannot share prefix `llvm.foo.bf16` with another overloaded intrinsic `llvm.foo`
+// CHECK-CONFLICT: error: intrinsic `llvm.foo.f32` cannot share prefix `llvm.foo.f32` with another overloaded intrinsic `llvm.foo`
+// CHECK-CONFLICT: error: intrinsic `llvm.foo.f64` cannot share prefix `llvm.foo.f64` with another overloaded intrinsic `llvm.foo`
+// CHECK-CONFLICT: error: intrinsic `llvm.foo.f_3` cannot share prefix `llvm.foo.f_3` with another overloaded intrinsic `llvm.foo`
+// CHECK-CONFLICT: error: intrinsic `llvm.foo.i65` cannot share prefix `llvm.foo.i65` with another overloaded intrinsic `llvm.foo`
+// CHECK-CONFLICT: error: intrinsic `llvm.foo.i65.bar` cannot share prefix `llvm.foo.i65` with another overloaded intrinsic `llvm.foo`
+// CHECK-CONFLICT: error: intrinsic `llvm.foo.p3` cannot share prefix `llvm.foo.p3` with another overloaded intrinsic `llvm.foo`
+// CHECK-CONFLICT: error: intrinsic `llvm.foo.s_3` cannot share prefix `llvm.foo.s_3` with another overloaded intrinsic `llvm.foo`
+// CHECK-CONFLICT: error: intrinsic `llvm.foo.v4` cannot share prefix `llvm.foo.v4` with another overloaded intrinsic `llvm.foo`
+// CHECK-CONFLICT: 10 errors
+// CHECK-CONFLICT-NOT: error
+
+// Confcts due to suffix being a posssible mangled type
----------------
jurahul wrote:

Done

https://github.com/llvm/llvm-project/pull/110324