| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt -passes=instcombine -S -o - %s | FileCheck %s |
| ; Tests that we preserve the inrange attribute on indices where possible. |
| |
| target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| %struct.A = type { ptr } |
| |
| @vt = external global [3 x ptr] |
| |
| define ptr @f0() { |
| ; CHECK-LABEL: @f0( |
| ; CHECK-NEXT: ret ptr getelementptr inbounds nuw inrange(-16, 8) (i8, ptr @vt, i64 16) |
| ; |
| ret ptr getelementptr (ptr, ptr getelementptr inbounds inrange(-8, 16) ([3 x ptr], ptr @vt, i64 0, i64 1), i64 1) |
| } |
| |
| define ptr @f1() { |
| ; CHECK-LABEL: @f1( |
| ; CHECK-NEXT: ret ptr getelementptr inbounds nuw inrange(-8, 0) (i8, ptr @vt, i64 16) |
| ; |
| ret ptr getelementptr (ptr, ptr getelementptr inbounds inrange(0, 8) ([3 x ptr], ptr @vt, i64 0, i64 1), i64 1) |
| } |
| |
| define ptr @f2() { |
| ; CHECK-LABEL: @f2( |
| ; CHECK-NEXT: ret ptr getelementptr inrange(-24, -16) (i8, ptr @vt, i64 32) |
| ; |
| ret ptr getelementptr (ptr, ptr getelementptr inbounds inrange(0, 8) ([3 x ptr], ptr @vt, i64 0, i64 1), i64 3) |
| } |