1 ; RUN: opt < %s -instcombine -S | FileCheck %s 2 ; PR9820 3 4 target 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" 5 target triple = "x86_64-unknown-linux-gnu" 6 7 @func_1.l_10 = internal unnamed_addr constant [4 x i32] [i32 1, i32 0, i32 0, i32 0], align 16 8 9 define i32* @noop(i32* %p_29) nounwind readnone { 10 entry: 11 ret i32* %p_29 12 } 13 14 define i32 @main() nounwind { 15 entry: 16 %l_10 = alloca [4 x i32], align 16 17 %tmp = bitcast [4 x i32]* %l_10 to i8* 18 call void @llvm.memcpy.p0i8.p0i8.i64(i8* %tmp, i8* bitcast ([4 x i32]* @func_1.l_10 to i8*), i64 16, i32 16, i1 false) 19 ; CHECK: call void @llvm.memcpy 20 %arrayidx = getelementptr inbounds [4 x i32]* %l_10, i64 0, i64 0 21 %call = call i32* @noop(i32* %arrayidx) 22 store i32 0, i32* %call 23 ret i32 0 24 } 25 26 declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i32, i1) nounwind 27
