================
@@ -5390,11 +5391,19 @@ RValue CodeGenFunction::EmitCall(const CGFunctionInfo
&CallInfo,
V->getType()->isIntegerTy())
V = Builder.CreateZExt(V, ArgInfo.getCoerceToType());
- // If the argument doesn't match, perform a bitcast to coerce it. This
- // can happen due to trivial type mismatches.
+ // If the argument doesn't match, we are either trying to pass an
+ // alloca-ed sret argument directly, and the alloca AS does not match
+ // the default AS, case in which we AS cast it, or we have a trivial
+ // type mismatch, and thus perform a bitcast to coerce it.
----------------
arsenm wrote:
The cast is probably unavoidable here. You need to support flat addressing for
any of c++ to work anyway, so that's fine for the GPU case
https://github.com/llvm/llvm-project/pull/114062
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