llvm/test/CodeGen/X86/fake-use-simple-tail-call.ll


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; RUN: llc < %s -mtriple=x86_64-unknown-unknown -O2 -o - \
; RUN:   | FileCheck %s --implicit-check-not=TAILCALL
; Generated with: clang -emit-llvm -O2 -S -fextend-variable-liveness test.cpp -o -
; =========== test.cpp ===============
; extern int bar(int);
; int foo1(int i)
; {
;     return bar(i);
; }
; =========== test.cpp ===============

; CHECK: TAILCALL

; ModuleID = 'test.cpp'
source_filename = "test.cpp"

define i32 @_Z4foo1i(i32 %i) local_unnamed_addr optdebug {
entry:
  %call = tail call i32 @_Z3bari(i32 %i)
  tail call void (...) @llvm.fake.use(i32 %i)
  ret i32 %call
}

declare i32 @_Z3bari(i32) local_unnamed_addr