[clang] [clang-repl] Extend the C support. (PR #89804)

[Vassil Vassilev via cfe-commits]

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@@ -0,0 +1,21 @@
+// REQUIRES: host-supports-jit
+// UNSUPPORTED: system-aix
+
+// RUN: cat %s | clang-repl -Xcc -xc -Xcc -Xclang -Xcc -verify | FileCheck %s
+// RUN: cat %s | clang-repl -Xcc -xc -Xcc -O2 -Xcc -Xclang -Xcc -verify| FileCheck %s
+int printf(const char *, ...);
+int i = 42; err // expected-error{{use of undeclared identifier}}
+int i = 42;
+struct S { float f; struct S *m;} s = {1.0, 0};
+// FIXME: Making foo inline fails to emit the function.
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vgvassilev wrote:

Not a C expert, my guess was that it had to do with CodeGen deciding to defer the inline as being a weak symbol. Needs more debugging but that's probably something for a later stage.

https://github.com/llvm/llvm-project/pull/89804