[clang] [CIR] Upstream a batch of passing tests from CIR-Incubator (PR #157333)

[Andy Kaylor via cfe-commits]

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@@ -0,0 +1,75 @@
+// RUN: %clang_cc1 -std=c++20 -triple x86_64-unknown-linux-gnu -fclangir -emit-cir %s -o %t.cir
+// RUN: FileCheck --input-file=%t.cir %s
+
+int foo(int a, int b) {
+  int x = a * b;
+  x *= b;
+  x /= b;
+  x %= b;
+  x += b;
+  x -= b;
+  x >>= b;
+  x <<= b;
+  x &= b;
+  x ^= b;
+  x |= b;
+  return x;
+}
+
+// CHECK: [[Value:%[0-9]+]] = cir.alloca !s32i, !cir.ptr<!s32i>, ["x", init] {alignment = 4 : i64}
+// CHECK: = cir.binop(mul,
+// CHECK: = cir.load {{.*}}[[Value]]
+// CHECK: = cir.binop(mul,
+// CHECK: cir.store{{.*}} {{.*}}[[Value]]
+// CHECK: = cir.load {{.*}}[[Value]]
+// CHECK: cir.binop(div,
+// CHECK: cir.store{{.*}} {{.*}}[[Value]]
+// CHECK: = cir.load {{.*}}[[Value]]
+// CHECK: = cir.binop(rem,  {{.*}} loc([[SourceLocation:#loc[0-9]+]])
+// CHECK: cir.store{{.*}} {{.*}}[[Value]]
+// CHECK: = cir.load {{.*}}[[Value]]
+// CHECK: = cir.binop(add,
+// CHECK: cir.store{{.*}} {{.*}}[[Value]]
+// CHECK: = cir.load {{.*}}[[Value]]
+// CHECK: = cir.binop(sub,
+// CHECK: cir.store{{.*}} {{.*}}[[Value]]
+// CHECK: = cir.load {{.*}}[[Value]]
+// CHECK: = cir.shift(right
+// CHECK: cir.store{{.*}} {{.*}}[[Value]]
+// CHECK: = cir.load {{.*}}[[Value]]
+// CHECK: = cir.shift(left
+// CHECK: cir.store{{.*}} {{.*}}[[Value]]
+// CHECK: = cir.load {{.*}}[[Value]]
+// CHECK: = cir.binop(and,
+// CHECK: cir.store{{.*}} {{.*}}[[Value]]
+// CHECK: = cir.load {{.*}}[[Value]]
+// CHECK: = cir.binop(xor,
+// CHECK: cir.store{{.*}} {{.*}}[[Value]]
+// CHECK: = cir.load {{.*}}[[Value]]
+// CHECK: = cir.binop(or,
+// CHECK: cir.store{{.*}} {{.*}}[[Value]]
+
+typedef enum {
+  A = 3,
+} enumy;
+
+enumy getty();
+
+void exec() {
+  enumy r;
+  if ((r = getty()) < 0) {}
+}
+
+// CHECK: cir.func dso_local @_Z4execv()
+// CHECK:   %0 = cir.alloca !u32i, !cir.ptr<!u32i>, ["r"] {alignment = 4 : i64}
----------------
andykaylor wrote:

```suggestion
// CHECK:   %0 = cir.alloca !u32i, !cir.ptr<!u32i>, ["r"]
```

https://github.com/llvm/llvm-project/pull/157333