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1; Test that -disable-builtin works correctly.2;3; RUN: opt < %s -passes=instcombine -disable-builtin strcat -S | FileCheck %s4;5; RUN: not opt < %s -passes=instcombine -disable-builtin foobar -S 2>&1 | FileCheck --check-prefix=FOOBAR %s6; FOOBAR: cannot disable nonexistent builtin function foobar7 8target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"9 10@empty = constant [1 x i8] c"\00", align 111 12declare ptr @strcat(ptr, ptr)13 14define ptr @test_strcat(ptr %x) {15; CHECK-LABEL: @test_strcat(16 %ret = call ptr @strcat(ptr %x, ptr @empty)17 ret ptr %ret18; CHECK: call ptr @strcat19}20 21