| Sanjoy Das | 206f65c | 2017-04-24 20:12:10 +0000 | [diff] [blame] | 1 | ; RUN: opt -S -basicaa -loop-idiom < %s | FileCheck %s |
| 2 | |
| 3 | target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128-ni:4" |
| 4 | target triple = "x86_64-unknown-linux-gnu" |
| 5 | |
| 6 | define void @f_0(i8 addrspace(3)** %ptr) { |
| 7 | ; CHECK-LABEL: @f_0( |
| 8 | ; CHECK: call{{.*}}memset |
| 9 | |
| 10 | ; LIR'ing stores of pointers with address space 3 is fine, since |
| 11 | ; they're integral pointers. |
| 12 | |
| 13 | entry: |
| 14 | br label %for.body |
| 15 | |
| 16 | for.body: |
| 17 | %indvar = phi i64 [ 0, %entry ], [ %indvar.next, %for.body ] |
| 18 | %arrayidx = getelementptr i8 addrspace(3)*, i8 addrspace(3)** %ptr, i64 %indvar |
| 19 | store i8 addrspace(3)* null, i8 addrspace(3)** %arrayidx, align 4 |
| 20 | %indvar.next = add i64 %indvar, 1 |
| 21 | %exitcond = icmp eq i64 %indvar.next, 10000 |
| 22 | br i1 %exitcond, label %for.end, label %for.body |
| 23 | |
| 24 | for.end: |
| 25 | ret void |
| 26 | } |
| 27 | |
| 28 | define void @f_1(i8 addrspace(4)** %ptr) { |
| 29 | ; CHECK-LABEL: @f_1( |
| 30 | ; CHECK-NOT: call{{.*}}memset |
| 31 | |
| 32 | ; LIR'ing stores of pointers with address space 4 is not ok, since |
| 33 | ; they're non-integral pointers. |
| 34 | |
| 35 | entry: |
| 36 | br label %for.body |
| 37 | |
| 38 | for.body: |
| 39 | %indvar = phi i64 [ 0, %entry ], [ %indvar.next, %for.body ] |
| 40 | %arrayidx = getelementptr i8 addrspace(4)*, i8 addrspace(4)** %ptr, i64 %indvar |
| 41 | store i8 addrspace(4)* null, i8 addrspace(4)** %arrayidx, align 4 |
| 42 | %indvar.next = add i64 %indvar, 1 |
| 43 | %exitcond = icmp eq i64 %indvar.next, 10000 |
| 44 | br i1 %exitcond, label %for.end, label %for.body |
| 45 | |
| 46 | for.end: |
| 47 | ret void |
| 48 | } |