| ; RUN: opt -S -basic-aa -loop-idiom < %s | FileCheck %s |
| |
| target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128-ni:4" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| ; LIR'ing stores of pointers with address space 3 is fine, since |
| ; they're integral pointers. |
| define void @f_0(i8 addrspace(3)** %ptr) { |
| ; CHECK-LABEL: @f_0( |
| ; CHECK: call{{.*}}memset |
| |
| entry: |
| br label %for.body |
| |
| for.body: |
| %indvar = phi i64 [ 0, %entry ], [ %indvar.next, %for.body ] |
| %arrayidx = getelementptr i8 addrspace(3)*, i8 addrspace(3)** %ptr, i64 %indvar |
| store i8 addrspace(3)* null, i8 addrspace(3)** %arrayidx, align 4 |
| %indvar.next = add i64 %indvar, 1 |
| %exitcond = icmp eq i64 %indvar.next, 10000 |
| br i1 %exitcond, label %for.end, label %for.body |
| |
| for.end: |
| ret void |
| } |
| |
| ; LIR'ing stores of pointers with address space 4 is not ok, since |
| ; they're non-integral pointers. NOTE: Zero is special value which |
| ; can be converted, if we add said handling here, convert this test |
| ; to use any non-null pointer. |
| define void @f_1(i8 addrspace(4)** %ptr) { |
| ; CHECK-LABEL: @f_1( |
| ; CHECK-NOT: call{{.*}}memset |
| |
| entry: |
| br label %for.body |
| |
| for.body: |
| %indvar = phi i64 [ 0, %entry ], [ %indvar.next, %for.body ] |
| %arrayidx = getelementptr i8 addrspace(4)*, i8 addrspace(4)** %ptr, i64 %indvar |
| store i8 addrspace(4)* null, i8 addrspace(4)** %arrayidx, align 4 |
| %indvar.next = add i64 %indvar, 1 |
| %exitcond = icmp eq i64 %indvar.next, 10000 |
| br i1 %exitcond, label %for.end, label %for.body |
| |
| for.end: |
| ret void |
| } |
| |
| ; Same as previous case, but vector of non-integral pointers |
| define void @f_2(i8 addrspace(4)** %ptr) { |
| ; CHECK-LABEL: @f_2( |
| ; CHECK-NOT: call{{.*}}memset |
| entry: |
| br label %for.body |
| |
| for.body: |
| %indvar = phi i64 [ 0, %entry ], [ %indvar.next, %for.body ] |
| %arrayidx = getelementptr i8 addrspace(4)*, i8 addrspace(4)** %ptr, i64 %indvar |
| %addr = bitcast i8 addrspace(4)** %arrayidx to <2 x i8 addrspace(4)*>* |
| store <2 x i8 addrspace(4)*> zeroinitializer, <2 x i8 addrspace(4)*>* %addr, align 8 |
| %indvar.next = add i64 %indvar, 2 |
| %exitcond = icmp eq i64 %indvar.next, 10000 |
| br i1 %exitcond, label %for.end, label %for.body |
| |
| for.end: |
| ret void |
| } |