1 ; RUN: llc < %s -mtriple=arm64-apple-ios | FileCheck %s 2 3 ; Can't fold the increment by 1<<12 into a post-increment load 4 ; rdar://10301335 5 6 @test_data = common global i32 0, align 4 7 8 define void @t() nounwind ssp { 9 ; CHECK-LABEL: t: 10 entry: 11 br label %for.body 12 13 for.body: 14 ; CHECK: for.body 15 ; CHECK: ldr w{{[0-9]+}}, [x{{[0-9]+}}, x{{[0-9]+}}] 16 ; CHECK: add x[[REG:[0-9]+]], 17 ; CHECK: x[[REG]], #1, lsl #12 18 %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] 19 %0 = shl nsw i64 %indvars.iv, 12 20 %add = add nsw i64 %0, 34628173824 21 %1 = inttoptr i64 %add to i32* 22 %2 = load volatile i32, i32* %1, align 4096 23 store volatile i32 %2, i32* @test_data, align 4 24 %indvars.iv.next = add i64 %indvars.iv, 1 25 %lftr.wideiv = trunc i64 %indvars.iv.next to i32 26 %exitcond = icmp eq i32 %lftr.wideiv, 200 27 br i1 %exitcond, label %for.end, label %for.body 28 29 for.end: 30 ret void 31 } 32
