| Dylan McKay | c4b002b | 2017-10-04 09:51:21 +0000 | [diff] [blame] | 1 | ; RUN: llc -O0 < %s -march=avr | FileCheck %s |
| 2 | |
| 3 | define i32 @std_ldd_overflow() { |
| 4 | %src = alloca [4 x i8] |
| 5 | %dst = alloca [4 x i8] |
| 6 | %buf = alloca [28 x i16] |
| 7 | %1 = bitcast [4 x i8]* %src to i32* |
| 8 | store i32 0, i32 *%1 |
| 9 | %2 = bitcast [4 x i8]* %dst to i8* |
| 10 | %3 = bitcast [4 x i8]* %src to i8* |
| Daniel Neilson | 1e68724 | 2018-01-19 17:13:12 +0000 | [diff] [blame] | 11 | call void @llvm.memcpy.p0i8.p0i8.i16(i8* %2, i8* %3, i16 4, i1 false) |
| Dylan McKay | c4b002b | 2017-10-04 09:51:21 +0000 | [diff] [blame] | 12 | ; CHECK-NOT: std {{[XYZ]}}+64, {{r[0-9]+}} |
| 13 | ; CHECK-NOT: ldd {{r[0-9]+}}, {{[XYZ]}}+64 |
| 14 | |
| 15 | ret i32 0 |
| 16 | } |
| 17 | |
| Daniel Neilson | 1e68724 | 2018-01-19 17:13:12 +0000 | [diff] [blame] | 18 | declare void @llvm.memcpy.p0i8.p0i8.i16(i8* nocapture writeonly, i8* nocapture readonly, i16, i1) |