From c3763ed0cc34dac4fe3c8e169fe2e3580aad02d6 Mon Sep 17 00:00:00 2001 From: Ariel Ben-Yehuda Date: Thu, 14 Dec 2017 21:41:17 -0600 Subject: [PATCH] Simplify CFG after IndVarSimplify Fixes #45466 --- src/llvm | 2 +- src/rustllvm/llvm-rebuild-trigger | 2 +- src/test/codegen/issue-45466.rs | 25 +++++++++++++++++++++++++ 3 files changed, 27 insertions(+), 2 deletions(-) create mode 100644 src/test/codegen/issue-45466.rs diff --git a/src/llvm b/src/llvm index 6d08185a5cf..5272c3b1e10 160000 --- a/src/llvm +++ b/src/llvm @@ -1 +1 @@ -Subproject commit 6d08185a5cf488d0a853b065a8a3a6d7a29f084f +Subproject commit 5272c3b1e1035b67b7741d54000d91438a5b4ef8 diff --git a/src/rustllvm/llvm-rebuild-trigger b/src/rustllvm/llvm-rebuild-trigger index feb6d98fe46..7f54d9276bf 100644 --- a/src/rustllvm/llvm-rebuild-trigger +++ b/src/rustllvm/llvm-rebuild-trigger @@ -1,4 +1,4 @@ # If this file is modified, then llvm will be (optionally) cleaned and then rebuilt. # The actual contents of this file do not matter, but to trigger a change on the # build bots then the contents should be changed so git updates the mtime. -2017-11-07 +2017-11-08 diff --git a/src/test/codegen/issue-45466.rs b/src/test/codegen/issue-45466.rs new file mode 100644 index 00000000000..3702b675389 --- /dev/null +++ b/src/test/codegen/issue-45466.rs @@ -0,0 +1,25 @@ +// Copyright 2017 The Rust Project Developers. See the COPYRIGHT +// file at the top-level directory of this distribution and at +// http://rust-lang.org/COPYRIGHT. +// +// Licensed under the Apache License, Version 2.0 or the MIT license +// , at your +// option. This file may not be copied, modified, or distributed +// except according to those terms. + +// min-llvm-version 4.0 +// compile-flags: -O + +#![crate_type="rlib"] + +// CHECK-LABEL: @memzero +// CHECK-NOT: store +// CHECK: call void @llvm.memset +// CHECK-NOT: store +#[no_mangle] +pub fn memzero(data: &mut [u8]) { + for i in 0..data.len() { + data[i] = 0; + } +}