test/Transforms/InstCombine/printf-puts-not-emittable.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals all --version 6
; RUN: opt < %s -passes=instcombine -S | FileCheck %s

@str = constant [5 x i8] c"foo\0A\00"
@fmt = constant [3 x i8] c"%s\00"

; Make puts un-emittable by redefining it as a global variable.
@puts = global i32 0


;.
; CHECK: @str = constant [5 x i8] c"foo\0A\00"
; CHECK: @fmt = constant [3 x i8] c"%s\00"
; CHECK: @puts = global i32 0
;.
define i32 @test() {
; CHECK-LABEL: define i32 @test() {
; CHECK-NEXT:    [[CALL:%.*]] = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @str)
; CHECK-NEXT:    ret i32 0
;
  %call = call i32 (ptr, ...) @printf(ptr @str)
  ret i32 0
}

define i32 @test2() {
; CHECK-LABEL: define i32 @test2() {
; CHECK-NEXT:    [[CALL:%.*]] = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @fmt, ptr nonnull @str)
; CHECK-NEXT:    ret i32 0
;
  %call = call i32 (ptr, ...) @printf(ptr @fmt, ptr @str)
  ret i32 0
}

declare i32 @printf(ptr, ...)