| Jingyue Wu | 78b0d51 | 2015-05-08 18:07:24 +0000 | [diff] [blame] | 1 | ; RUN: opt < %s -loop-reduce -S | FileCheck %s |
| 2 | |
| 3 | target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64" |
| 4 | |
| 5 | declare void @foo(i8) |
| 6 | |
| 7 | define void @not_addressing_mode(i8* %input, i64 %n) { |
| 8 | ; CHECK-LABEL: @not_addressing_mode( |
| 9 | entry: |
| 10 | br label %loop |
| 11 | |
| 12 | loop: |
| 13 | ; CHECK: loop: |
| 14 | ; CHECK: %lsr.iv = phi i8* [ {{%[^,]+}}, %loop ], [ %input, %entry ] |
| 15 | %i = phi i64 [ 0, %entry ], [ %i.next, %loop ] |
| 16 | %i.next = add i64 %i, 1 |
| 17 | %j = mul i64 %i, -2 |
| 18 | ; (%input - 2 * %j) is not foldable. Worth another indvar. |
| 19 | %p = getelementptr i8, i8* %input, i64 %j |
| 20 | %v = load i8, i8* %p |
| 21 | ; CHECK: %v = load i8, i8* %lsr.iv |
| 22 | call void @foo(i8 %v) |
| 23 | %exitcond = icmp slt i64 %i.next, %n |
| 24 | br i1 %exitcond, label %exit, label %loop |
| 25 | |
| 26 | exit: |
| 27 | ret void |
| 28 | } |