| Li Huang | fcfe8cd | 2016-10-20 21:38:39 +0000 | [diff] [blame] | 1 | ; RUN: opt -analyze -scalar-evolution -scev-mulops-inline-threshold=1 < %s | FileCheck --check-prefix=CHECK1 %s |
| 2 | ; RUN: opt -analyze -scalar-evolution -scev-mulops-inline-threshold=10 < %s | FileCheck --check-prefix=CHECK10 %s |
| 3 | |
| 4 | target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| 5 | target triple = "x86_64-unknown-linux-gnu" |
| 6 | |
| 7 | @a = local_unnamed_addr global i32 0, align 4 |
| 8 | @b = local_unnamed_addr global i32 0, align 4 |
| 9 | |
| 10 | define i32 @main() local_unnamed_addr { |
| 11 | |
| 12 | ; CHECK1: %mul.1 = mul nsw i32 %mul, %mul |
| 13 | ; CHECK1: --> ((%a.promoted * %a.promoted) * (%a.promoted * %a.promoted)) |
| 14 | |
| 15 | ; CHECK10: %mul.1 = mul nsw i32 %mul, %mul |
| 16 | ; CHECK10: --> (%a.promoted * %a.promoted * %a.promoted * %a.promoted) |
| 17 | |
| 18 | entry: |
| 19 | %a.promoted = load i32, i32* @a, align 4 |
| 20 | %mul = mul nsw i32 %a.promoted, %a.promoted |
| 21 | %mul.1 = mul nsw i32 %mul, %mul |
| 22 | %mul.2 = mul nsw i32 %mul.1, %mul.1 |
| 23 | %mul.3 = mul nsw i32 %mul.2, %mul.2 |
| 24 | %mul.4 = mul nsw i32 %mul.3, %mul.3 |
| 25 | %mul.5 = mul nsw i32 %mul.4, %mul.4 |
| 26 | store i32 %mul.5, i32* @a, align 4 |
| 27 | store i32 31, i32* @b, align 4 |
| 28 | ret i32 0 |
| 29 | } |