| ; RUN: opt %loadNPMPolly '-passes=print<polly-optree>' -disable-output < %s | FileCheck %s -match-full-lines |
| |
| ; In the code below, %0 is known to be equal to the content of @c (constant 0). |
| ; Thus, in order to save a scalar dependency, forward-optree replaces |
| ; the use of %0 in Stmt_lor_end93 by a load from @c by changing the |
| ; access find from a scalar access to a array accesses. |
| ; llvm.org/PR48034 describes a crash caused by the mid-processing change. |
| |
| target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| @c = external dso_local global i64, align 8 |
| |
| define void @func() { |
| entry: |
| br label %lor.end |
| |
| while.cond.loopexit: |
| %conv102.le = trunc i64 %xor101 to i8 |
| ret void |
| |
| lor.end: |
| %tobool72.not = icmp eq i64 0, 0 |
| br i1 %tobool72.not, label %lor.rhs87, label %lor.end.thread |
| |
| lor.end.thread: |
| br label %lor.rhs87 |
| |
| lor.rhs87: |
| %0 = phi i64 [ 0, %lor.end.thread ], [ 0, %lor.end ] |
| store i64 %0, ptr @c, align 8 |
| %neg79 = xor i64 %0, -1 |
| br label %lor.end93 |
| |
| lor.end93: |
| %tobool93 = icmp ne i64 undef, 0 |
| %conv95 = zext i1 %tobool93 to i64 |
| %and100 = and i64 %conv95, undef |
| %xor101 = xor i64 %and100, %neg79 |
| %xor103 = xor i64 %0, %conv95 |
| br label %while.cond.loopexit |
| } |
| |
| |
| ; CHECK: Statistics { |
| ; CHECK: Reloads: 0 |
| ; CHECK: } |
