1 ; Test that the memcpy library call simplifier works correctly. 2 ; 3 ; RUN: opt < %s -instcombine -S | FileCheck %s 4 5 target 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 7 declare i8* @memcpy(i8*, i8*, i32) 8 9 ; Check memcpy(mem1, mem2, size) -> llvm.memcpy(mem1, mem2, size, 1). 10 11 define i8* @test_simplify1(i8* %mem1, i8* %mem2, i32 %size) { 12 ; CHECK-LABEL: @test_simplify1( 13 %ret = call i8* @memcpy(i8* %mem1, i8* %mem2, i32 %size) 14 ; CHECK: call void @llvm.memcpy 15 ret i8* %ret 16 ; CHECK: ret i8* %mem1 17 } 18
