| Dan Gohman | 2e20dfb | 2010-10-25 16:16:27 +0000 | [diff] [blame^] | 1 | ; RUN: opt -S -instcombine < %s | FileCheck %s |
| 2 | |
| 3 | ; Instcombine should preserve metadata and alignment while |
| 4 | ; folding a bitcast into a store. |
| 5 | |
| 6 | ; CHECK: store i32 (...)** bitcast (i8** getelementptr inbounds ([5 x i8*]* @G, i64 0, i64 2) to i32 (...)**), i32 (...)*** %0, align 16, !tag !0 |
| 7 | |
| 8 | 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" |
| 9 | |
| 10 | %struct.A = type { i32 (...)** } |
| 11 | |
| 12 | @G = external constant [5 x i8*] |
| 13 | |
| 14 | define void @foo(%struct.A* %a) nounwind { |
| 15 | entry: |
| 16 | %0 = bitcast %struct.A* %a to i8*** |
| 17 | store i8** getelementptr inbounds ([5 x i8*]* @G, i64 0, i64 2), i8*** %0, align 16, !tag !0 |
| 18 | ret void |
| 19 | } |
| 20 | |
| 21 | !0 = metadata !{metadata !"hello"} |