mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-07-20 10:30:03 +00:00
f416d72973
Propagate whether `MDNode`s are 'distinct' through the other types of IR (assembly and bitcode). This adds the `distinct` keyword to assembly. Currently, no one actually calls `MDNode::getDistinct()`, so these nodes only get created for: - self-references, which are never uniqued, and - nodes whose operands are replaced that hit a uniquing collision. The concept of distinct nodes is still not quite first-class, since distinct-ness doesn't yet survive across `MapMetadata()`. Part of PR22111. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225474 91177308-0d34-0410-b5e6-96231b3b80d8
45 lines
1.9 KiB
LLVM
45 lines
1.9 KiB
LLVM
; RUN: opt -basicaa -inline -enable-noalias-to-md-conversion -S < %s | FileCheck %s
|
|
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
|
|
target triple = "x86_64-unknown-linux-gnu"
|
|
|
|
declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture readonly, i64, i32, i1) #0
|
|
declare void @hey() #0
|
|
|
|
define void @hello(i8* noalias nocapture %a, i8* noalias nocapture readonly %c, i8* nocapture %b) #1 {
|
|
entry:
|
|
%l = alloca i8, i32 512, align 1
|
|
call void @llvm.memcpy.p0i8.p0i8.i64(i8* %a, i8* %b, i64 16, i32 16, i1 0)
|
|
call void @llvm.memcpy.p0i8.p0i8.i64(i8* %b, i8* %c, i64 16, i32 16, i1 0)
|
|
call void @llvm.memcpy.p0i8.p0i8.i64(i8* %a, i8* %c, i64 16, i32 16, i1 0)
|
|
call void @hey()
|
|
call void @llvm.memcpy.p0i8.p0i8.i64(i8* %l, i8* %c, i64 16, i32 16, i1 0)
|
|
ret void
|
|
}
|
|
|
|
define void @foo(i8* nocapture %a, i8* nocapture readonly %c, i8* nocapture %b) #1 {
|
|
entry:
|
|
tail call void @hello(i8* %a, i8* %c, i8* %b)
|
|
ret void
|
|
}
|
|
|
|
; CHECK: define void @foo(i8* nocapture %a, i8* nocapture readonly %c, i8* nocapture %b) #1 {
|
|
; CHECK: entry:
|
|
; CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* %a, i8* %b, i64 16, i32 16, i1 false) #0, !noalias !0
|
|
; CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* %b, i8* %c, i64 16, i32 16, i1 false) #0, !noalias !3
|
|
; CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* %a, i8* %c, i64 16, i32 16, i1 false) #0, !alias.scope !5
|
|
; CHECK: call void @hey() #0, !noalias !5
|
|
; CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* %{{.*}}, i8* %c, i64 16, i32 16, i1 false) #0, !noalias !3
|
|
; CHECK: ret void
|
|
; CHECK: }
|
|
|
|
attributes #0 = { nounwind }
|
|
attributes #1 = { nounwind uwtable }
|
|
|
|
; CHECK: !0 = !{!1}
|
|
; CHECK: !1 = distinct !{!1, !2, !"hello: %c"}
|
|
; CHECK: !2 = distinct !{!2, !"hello"}
|
|
; CHECK: !3 = !{!4}
|
|
; CHECK: !4 = distinct !{!4, !2, !"hello: %a"}
|
|
; CHECK: !5 = !{!4, !1}
|
|
|