1 ; RUN: opt -domtree -instcombine -loops -S < %s | FileCheck %s 2 ; Note: The -loops above can be anything that requires the domtree, and is 3 ; necessary to work around a pass-manager bug. 4 5 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 6 target triple = "x86_64-unknown-linux-gnu" 7 8 ; Function Attrs: nounwind uwtable 9 define void @foo(i32* %a, i32* %b) #0 { 10 entry: 11 %ptrint = ptrtoint i32* %a to i64 12 %maskedptr = and i64 %ptrint, 63 13 %maskcond = icmp eq i64 %maskedptr, 0 14 tail call void @llvm.assume(i1 %maskcond) 15 %ptrint1 = ptrtoint i32* %b to i64 16 %maskedptr2 = and i64 %ptrint1, 63 17 %maskcond3 = icmp eq i64 %maskedptr2, 0 18 tail call void @llvm.assume(i1 %maskcond3) 19 br label %for.body 20 21 ; CHECK-LABEL: @foo 22 ; CHECK: load i32, i32* {{.*}} align 64 23 ; CHECK: store i32 {{.*}} align 64 24 ; CHECK: ret 25 26 for.body: ; preds = %entry, %for.body 27 %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] 28 %arrayidx = getelementptr inbounds i32, i32* %b, i64 %indvars.iv 29 %0 = load i32, i32* %arrayidx, align 4 30 %add = add nsw i32 %0, 1 31 %arrayidx5 = getelementptr inbounds i32, i32* %a, i64 %indvars.iv 32 store i32 %add, i32* %arrayidx5, align 4 33 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 16 34 %1 = trunc i64 %indvars.iv.next to i32 35 %cmp = icmp slt i32 %1, 1648 36 br i1 %cmp, label %for.body, label %for.end 37 38 for.end: ; preds = %for.body 39 ret void 40 } 41 42 ; Function Attrs: nounwind 43 declare void @llvm.assume(i1) #1 44 45 attributes #0 = { nounwind uwtable } 46 attributes #1 = { nounwind } 47 48
