| Jakob Stoklund Olesen | d1303d2 | 2010-06-29 19:15:30 +0000 | [diff] [blame^] | 1 | ; RUN: llc < %s -O0 -mcpu=cortex-a8 | FileCheck %s |
| 2 | target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:32-f32:32:32-f64:32:32-v64:32:64-v128:32:128-a0:0:32-n32" |
| 3 | target triple = "thumbv7-apple-darwin10" |
| 4 | |
| 5 | ; This tests the fast register allocator's handling of partial redefines: |
| 6 | ; |
| 7 | ; %reg1026<def> = VMOVv16i8 0, pred:14, pred:%reg0 |
| 8 | ; %reg1028:dsub_1<def> = EXTRACT_SUBREG %reg1026<kill>, 1 |
| 9 | ; |
| 10 | ; %reg1026 gets allocated %Q0, and if %reg1028 is reloaded for the partial redef, |
| 11 | ; it cannot also get %Q0. |
| 12 | |
| 13 | ; CHECK: vmov.i8 q0, #0x0 |
| 14 | ; CHECK-NOT: vld1.64 {d0,d1} |
| 15 | ; CHECK: vmov.f64 d3, d0 |
| 16 | |
| 17 | define i32 @main(i32 %argc, i8** %argv) nounwind { |
| 18 | entry: |
| 19 | %0 = shufflevector <2 x i64> undef, <2 x i64> zeroinitializer, <2 x i32> <i32 1, i32 2> ; <<2 x i64>> [#uses=1] |
| 20 | store <2 x i64> %0, <2 x i64>* undef, align 16 |
| 21 | ret i32 undef |
| 22 | } |