| Eli Friedman | ecb4538 | 2011-11-12 02:07:50 +0000 | [diff] [blame] | 1 | ; RUN: opt < %s -S -scalarrepl | FileCheck %s |
| 2 | |
| 3 | 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-S128" |
| 4 | |
| 5 | %struct.S = type { [2 x %struct.anon], double } |
| 6 | %struct.anon = type {} |
| 7 | |
| 8 | ; CHECK: @test() |
| 9 | ; CHECK-NOT: alloca |
| 10 | ; CHECK: ret double 1.0 |
| 11 | |
| 12 | define double @test() nounwind uwtable ssp { |
| 13 | entry: |
| 14 | %retval = alloca %struct.S, align 8 |
| 15 | %ret = alloca %struct.S, align 8 |
| 16 | %b = getelementptr inbounds %struct.S* %ret, i32 0, i32 1 |
| 17 | store double 1.000000e+00, double* %b, align 8 |
| 18 | %0 = bitcast %struct.S* %retval to i8* |
| 19 | %1 = bitcast %struct.S* %ret to i8* |
| 20 | call void @llvm.memcpy.p0i8.p0i8.i64(i8* %0, i8* %1, i64 8, i32 8, i1 false) |
| 21 | %2 = bitcast %struct.S* %retval to double* |
| 22 | %3 = load double* %2, align 1 |
| 23 | ret double %3 |
| 24 | } |
| 25 | |
| 26 | declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i32, i1) nounwind |