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 } 49
