| ; RUN: opt -basicaa -loop-idiom < %s -S | FileCheck %s |
| |
| target datalayout = "e-p:32:32:32-p1:64:64:64-p2:16:16:16-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:32-n8:16:32:64" |
| target triple = "x86_64-apple-darwin10.0.0" |
| |
| ; Two dimensional nested loop should be promoted to one big memset. |
| define void @test10(i8 addrspace(2)* %X) nounwind ssp { |
| ; CHECK-LABEL: @test10( |
| ; CHECK: entry: |
| ; CHECK-NEXT: call void @llvm.memset.p2i8.i16(i8 addrspace(2)* align 1 %X, i8 0, i16 10000, i1 false) |
| ; CHECK-NOT: store |
| ; CHECK: ret void |
| |
| entry: |
| br label %bb.nph |
| |
| bb.nph: ; preds = %entry, %for.inc10 |
| %i.04 = phi i16 [ 0, %entry ], [ %inc12, %for.inc10 ] |
| br label %for.body5 |
| |
| for.body5: ; preds = %for.body5, %bb.nph |
| %j.02 = phi i16 [ 0, %bb.nph ], [ %inc, %for.body5 ] |
| %mul = mul nsw i16 %i.04, 100 |
| %add = add nsw i16 %j.02, %mul |
| %arrayidx = getelementptr inbounds i8, i8 addrspace(2)* %X, i16 %add |
| store i8 0, i8 addrspace(2)* %arrayidx, align 1 |
| %inc = add nsw i16 %j.02, 1 |
| %cmp4 = icmp eq i16 %inc, 100 |
| br i1 %cmp4, label %for.inc10, label %for.body5 |
| |
| for.inc10: ; preds = %for.body5 |
| %inc12 = add nsw i16 %i.04, 1 |
| %cmp = icmp eq i16 %inc12, 100 |
| br i1 %cmp, label %for.end13, label %bb.nph |
| |
| for.end13: ; preds = %for.inc10 |
| ret void |
| } |
| |
| define void @test11_pattern(i32 addrspace(2)* nocapture %P) nounwind ssp { |
| ; CHECK-LABEL: @test11_pattern( |
| ; CHECK-NOT: memset_pattern |
| entry: |
| br label %for.body |
| |
| for.body: ; preds = %entry, %for.body |
| %indvar = phi i64 [ 0, %entry ], [ %indvar.next, %for.body ] |
| %arrayidx = getelementptr i32, i32 addrspace(2)* %P, i64 %indvar |
| store i32 1, i32 addrspace(2)* %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: ; preds = %for.body |
| ret void |
| } |
| |
| ; PR9815 - This is a partial overlap case that cannot be safely transformed |
| ; into a memcpy. |
| @g_50 = addrspace(2) global [7 x i32] [i32 0, i32 0, i32 0, i32 0, i32 1, i32 0, i32 0], align 16 |
| |
| |
| define i32 @test14() nounwind { |
| ; CHECK-LABEL: @test14( |
| ; CHECK: for.body: |
| ; CHECK: load i32 |
| ; CHECK: store i32 |
| ; CHECK: br i1 %cmp |
| |
| entry: |
| br label %for.body |
| |
| for.body: ; preds = %for.inc, %for.body.lr.ph |
| %tmp5 = phi i32 [ %inc, %for.body ], [ 0, %entry ] |
| %add = add nsw i32 %tmp5, 4 |
| %idxprom = sext i32 %add to i64 |
| %arrayidx = getelementptr inbounds [7 x i32], [7 x i32] addrspace(2)* @g_50, i32 0, i64 %idxprom |
| %tmp2 = load i32, i32 addrspace(2)* %arrayidx, align 4 |
| %add4 = add nsw i32 %tmp5, 5 |
| %idxprom5 = sext i32 %add4 to i64 |
| %arrayidx6 = getelementptr inbounds [7 x i32], [7 x i32] addrspace(2)* @g_50, i32 0, i64 %idxprom5 |
| store i32 %tmp2, i32 addrspace(2)* %arrayidx6, align 4 |
| %inc = add nsw i32 %tmp5, 1 |
| %cmp = icmp slt i32 %inc, 2 |
| br i1 %cmp, label %for.body, label %for.end |
| |
| for.end: ; preds = %for.inc |
| %tmp8 = load i32, i32 addrspace(2)* getelementptr inbounds ([7 x i32], [7 x i32] addrspace(2)* @g_50, i32 0, i64 6), align 4 |
| ret i32 %tmp8 |
| } |
| |