1 ; RUN: llc -mtriple=thumbv7m-arm-none-eabi -mcpu=cortex-m3 < %s | FileCheck %s 2 3 %struct.mystruct = type { [31 x i8] } 4 5 @.str = private unnamed_addr constant [31 x i8] c"012345678901234567890123456789\00", align 1 6 @.str.1 = private unnamed_addr constant [21 x i8] c"01234567890123456789\00", align 1 7 8 @myglobal = common global %struct.mystruct zeroinitializer, align 1 9 10 define void @foo() #0 { 11 entry: 12 ; CHECK-LABEL: foo: 13 ; CHECK: __aeabi_memcpy 14 ; CHECK-NOT: ldm 15 %mystring = alloca [31 x i8], align 1 16 %0 = getelementptr inbounds [31 x i8], [31 x i8]* %mystring, i32 0, i32 0 17 call void @llvm.memcpy.p0i8.p0i8.i32(i8* %0, i8* getelementptr inbounds ([31 x i8], [31 x i8]* @.str, i32 0, i32 0), i32 31, i32 1, i1 false) 18 ret void 19 } 20 21 define void @bar() #0 { 22 entry: 23 ; CHECK-LABEL: bar: 24 ; CHECK-NOT: __aeabi_memcpy 25 %mystring = alloca [31 x i8], align 1 26 %0 = getelementptr inbounds [31 x i8], [31 x i8]* %mystring, i32 0, i32 0 27 call void @llvm.memcpy.p0i8.p0i8.i32(i8* %0, i8* getelementptr inbounds ([21 x i8], [21 x i8]* @.str.1, i32 0, i32 0), i32 21, i32 1, i1 false) 28 ret void 29 } 30 31 declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture readonly, i32, i32, i1) #1 32 33 attributes #0 = { minsize noinline nounwind optsize } 34
