[clang] [CIR] Upstream minimal builtin function call support (PR #142981)

[Andy Kaylor via cfe-commits]

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@@ -201,6 +201,19 @@ class CIRGenBuilderTy : public cir::CIRBaseBuilderTy {
   cir::IntType getUInt32Ty() { return typeCache.UInt32Ty; }
   cir::IntType getUInt64Ty() { return typeCache.UInt64Ty; }
 
+  cir::ConstantOp getConstInt(mlir::Location loc, llvm::APSInt intVal);
+
+  cir::ConstantOp getConstInt(mlir::Location loc, llvm::APInt intVal);
+
+  cir::ConstantOp getConstInt(mlir::Location loc, mlir::Type t, uint64_t c);
+
+  cir::ConstantOp getConstFP(mlir::Location loc, mlir::Type t,
+                             llvm::APFloat fpVal) {
+    assert((mlir::isa<cir::SingleType, cir::DoubleType>(t)) &&
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andykaylor wrote:

This doesn't seem like a good assumption, and it's crashing the incubator in this case: https://godbolt.org/z/Ycv1Gv7Y1.

https://github.com/llvm/llvm-project/pull/142981