1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2 ; RUN: opt -O3 -S < %s | FileCheck %s
3 ; RUN: opt -instcombine -sccp -bdce -S < %s | FileCheck %s
4 ; RUN: opt -aggressive-instcombine -instcombine -sccp -bdce -S < %s | FileCheck %s
6 target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
7 target triple = "x86_64-unknown-linux-gnu"
9 define i1 @foo(i32 %t4, i32 %t10) {
11 ; CHECK-NEXT: ret i1 false
13 %t09 = shl i32 %t10, 24
14 %t010 = ashr exact i32 %t09, 24
15 %t011 = add nsw i32 %t010, 979
16 %t11 = trunc i32 %t4 to i8
17 %t12 = icmp eq i8 %t11, 0
18 %t14 = zext i1 %t12 to i32
19 %t15 = shl i32 %t4, %t14
20 %t17 = and i32 %t15, 255
21 %t18 = icmp eq i32 %t011, %t17
25 define i1 @bar(i32 %t4, i32 %t10) {
27 ; CHECK-NEXT: ret i1 false
29 %t09 = shl i32 %t10, 24
30 %t010 = ashr exact i32 %t09, 24
31 %t011 = add nsw i32 %t010, 979
32 %t11 = trunc i32 %t4 to i8
33 %t12 = icmp eq i8 %t11, 0
34 %t14 = zext i1 %t12 to i8
35 %t15 = shl i8 %t11, %t14
36 %t17 = zext i8 %t15 to i32
37 %t18 = icmp eq i32 %t011, %t17
41 define i1 @foobar(i32 %t4, i32 %t10) {
42 ; CHECK-LABEL: @foobar(
43 ; CHECK-NEXT: ret i1 false
45 %t09 = shl i32 %t10, 24
46 %t010 = ashr exact i32 %t09, 24
47 %t011 = add nsw i32 %t010, 979
48 %t11 = trunc i32 %t4 to i8
49 %t12 = icmp eq i8 %t11, 0
50 %t13 = zext i8 %t11 to i32
51 %t14 = select i1 %t12, i32 1, i32 0
52 %t15 = shl nuw nsw i32 %t13, %t14
53 %t16 = trunc i32 %t15 to i8
54 %t17 = zext i8 %t16 to i32
55 %t18 = icmp eq i32 %t011, %t17