llvm-project/llvm/test/Transforms/Inline/inline-musttail-varargs.ll

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735 B
LLVM

; RUN: opt < %s -inline -instcombine -S | FileCheck %s
; We can't inline this thunk yet, but one day we will be able to. And when we
; do, this test case will be ready.
declare void @ext_method(i8*, i32)
define linkonce_odr void @thunk(i8* %this, ...) {
%this_adj = getelementptr i8* %this, i32 4
musttail call void (i8*, ...)* bitcast (void (i8*, i32)* @ext_method to void (i8*, ...)*)(i8* %this_adj, ...)
ret void
}
define void @thunk_caller(i8* %p) {
call void (i8*, ...)* @thunk(i8* %p, i32 42)
ret void
}
; CHECK-LABEL: define void @thunk_caller(i8* %p)
; CHECK: call void (i8*, ...)* @thunk(i8* %p, i32 42)
; FIXME: Inline the thunk. This should be significantly easier than inlining
; general varargs functions.