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

[Andy Kaylor via cfe-commits]

Burhan =?utf-8?b?U8O2xJ/DvHQ=?= <burhan.sogutt at gmail.com>,
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@@ -0,0 +1,94 @@
+// 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 --check-prefix=CIR
+
+void if0() {
+  int x = 0;
+
+  if constexpr (0 == 0) {
+    // CIR: cir.scope {
+    // CIR-NEXT:   %2 = cir.alloca !s32i, !cir.ptr<!s32i>, ["x", init]
+    // CIR-NEXT:   %3 = cir.const #cir.int<2> : !s32i
+    // CIR-NEXT:   cir.store %3, %2 : !s32i, !cir.ptr<!s32i>
----------------
andykaylor wrote:

I've just commented on the files to remove. Unfortunately, I will be on vacation after today until September 19. @AmrDeveloper Can you help to see this PR through and merge it after the tests that require updates have been removed?

@bursot In case you haven't already seen it, here is a reference that documents how the FileCheck pattern matching works: https://llvm.org/docs/CommandGuide/FileCheck.html You'll need to use that information for the next steps.

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