xref: /llvm-project/llvm/test/Transforms/InstSimplify/ConstProp/gep.ll (revision 10f315dc9c96ec2413881ab55a285e35d80def88)
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: opt -passes=instcombine -S -o - %s | FileCheck %s
3; Tests that we preserve the inrange attribute on indices where possible.
4
5target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
6target triple = "x86_64-unknown-linux-gnu"
7
8%struct.A = type { ptr }
9
10@vt = external global [3 x ptr]
11
12define ptr @f0() {
13; CHECK-LABEL: @f0(
14; CHECK-NEXT:    ret ptr getelementptr inbounds nuw inrange(-16, 8) (i8, ptr @vt, i64 16)
15;
16  ret ptr getelementptr (ptr, ptr getelementptr inbounds inrange(-8, 16) ([3 x ptr], ptr @vt, i64 0, i64 1), i64 1)
17}
18
19define ptr @f1() {
20; CHECK-LABEL: @f1(
21; CHECK-NEXT:    ret ptr getelementptr inbounds nuw inrange(-8, 0) (i8, ptr @vt, i64 16)
22;
23  ret ptr getelementptr (ptr, ptr getelementptr inbounds inrange(0, 8) ([3 x ptr], ptr @vt, i64 0, i64 1), i64 1)
24}
25
26define ptr @f2() {
27; CHECK-LABEL: @f2(
28; CHECK-NEXT:    ret ptr getelementptr inrange(-24, -16) (i8, ptr @vt, i64 32)
29;
30  ret ptr getelementptr (ptr, ptr getelementptr inbounds inrange(0, 8) ([3 x ptr], ptr @vt, i64 0, i64 1), i64 3)
31}
32