1*9880d681SAndroid Build Coastguard Worker; Test that the strncpy library call simplifier works correctly. 2*9880d681SAndroid Build Coastguard Worker; 3*9880d681SAndroid Build Coastguard Worker; RUN: opt < %s -instcombine -S | FileCheck %s 4*9880d681SAndroid Build Coastguard Worker 5*9880d681SAndroid Build Coastguard Workertarget datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128" 6*9880d681SAndroid Build Coastguard Worker 7*9880d681SAndroid Build Coastguard Worker@hello = constant [6 x i8] c"hello\00" 8*9880d681SAndroid Build Coastguard Worker@a = common global [32 x i8] zeroinitializer, align 1 9*9880d681SAndroid Build Coastguard Worker 10*9880d681SAndroid Build Coastguard Workerdeclare i16* @strncpy(i8*, i8*, i32) 11*9880d681SAndroid Build Coastguard Worker 12*9880d681SAndroid Build Coastguard Worker; Check that 'strncpy' functions with the wrong prototype aren't simplified. 13*9880d681SAndroid Build Coastguard Worker 14*9880d681SAndroid Build Coastguard Workerdefine void @test_no_simplify1() { 15*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: @test_no_simplify1( 16*9880d681SAndroid Build Coastguard Worker %dst = getelementptr [32 x i8], [32 x i8]* @a, i32 0, i32 0 17*9880d681SAndroid Build Coastguard Worker %src = getelementptr [6 x i8], [6 x i8]* @hello, i32 0, i32 0 18*9880d681SAndroid Build Coastguard Worker 19*9880d681SAndroid Build Coastguard Worker call i16* @strncpy(i8* %dst, i8* %src, i32 6) 20*9880d681SAndroid Build Coastguard Worker; CHECK: call i16* @strncpy 21*9880d681SAndroid Build Coastguard Worker ret void 22*9880d681SAndroid Build Coastguard Worker} 23