| Chandler Carruth | 1de43ed | 2012-07-02 19:09:46 +0000 | [diff] [blame] | 1 | ; RUN: opt < %s -basicaa -memcpyopt -dse -S | grep "call.*initialize" | not grep memtmp |
| Owen Anderson | 6bb0bd5 | 2008-03-12 07:37:44 +0000 | [diff] [blame] | 2 | ; PR2077 |
| 3 | |
| Owen Anderson | c0808a7 | 2008-02-25 04:08:09 +0000 | [diff] [blame] | 4 | target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32" |
| 5 | target triple = "i386-pc-linux-gnu" |
| 6 | |
| Chris Lattner | b85e4eb | 2011-06-18 06:05:24 +0000 | [diff] [blame] | 7 | %0 = type { x86_fp80, x86_fp80 } |
| 8 | |
| 9 | define internal fastcc void @initialize(%0* noalias sret %agg.result) nounwind { |
| Owen Anderson | c0808a7 | 2008-02-25 04:08:09 +0000 | [diff] [blame] | 10 | entry: |
| Chris Lattner | b85e4eb | 2011-06-18 06:05:24 +0000 | [diff] [blame] | 11 | %agg.result.03 = getelementptr %0* %agg.result, i32 0, i32 0 |
| 12 | store x86_fp80 0xK00000000000000000000, x86_fp80* %agg.result.03 |
| 13 | %agg.result.15 = getelementptr %0* %agg.result, i32 0, i32 1 |
| 14 | store x86_fp80 0xK00000000000000000000, x86_fp80* %agg.result.15 |
| 15 | ret void |
| Owen Anderson | c0808a7 | 2008-02-25 04:08:09 +0000 | [diff] [blame] | 16 | } |
| 17 | |
| Chris Lattner | b85e4eb | 2011-06-18 06:05:24 +0000 | [diff] [blame] | 18 | declare fastcc x86_fp80 @passed_uninitialized(%0*) nounwind |
| Owen Anderson | c0808a7 | 2008-02-25 04:08:09 +0000 | [diff] [blame] | 19 | |
| Chris Lattner | b85e4eb | 2011-06-18 06:05:24 +0000 | [diff] [blame] | 20 | define fastcc void @badly_optimized() nounwind { |
| Owen Anderson | c0808a7 | 2008-02-25 04:08:09 +0000 | [diff] [blame] | 21 | entry: |
| Chris Lattner | b85e4eb | 2011-06-18 06:05:24 +0000 | [diff] [blame] | 22 | %z = alloca %0 |
| 23 | %tmp = alloca %0 |
| 24 | %memtmp = alloca %0, align 8 |
| 25 | call fastcc void @initialize(%0* noalias sret %memtmp) |
| 26 | %tmp1 = bitcast %0* %tmp to i8* |
| 27 | %memtmp2 = bitcast %0* %memtmp to i8* |
| 28 | call void @llvm.memcpy.p0i8.p0i8.i32(i8* %tmp1, i8* %memtmp2, i32 24, i32 8, i1 false) |
| 29 | %z3 = bitcast %0* %z to i8* |
| 30 | %tmp4 = bitcast %0* %tmp to i8* |
| 31 | call void @llvm.memcpy.p0i8.p0i8.i32(i8* %z3, i8* %tmp4, i32 24, i32 8, i1 false) |
| 32 | %tmp5 = call fastcc x86_fp80 @passed_uninitialized(%0* %z) |
| 33 | ret void |
| Owen Anderson | c0808a7 | 2008-02-25 04:08:09 +0000 | [diff] [blame] | 34 | } |
| 35 | |
| Chris Lattner | b85e4eb | 2011-06-18 06:05:24 +0000 | [diff] [blame] | 36 | declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture, i32, i32, i1) nounwind |