File: load-combine-metadata-4.ll

package info (click to toggle)
llvm-toolchain-15 1%3A15.0.6-4
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,554,644 kB
  • sloc: cpp: 5,922,452; ansic: 1,012,136; asm: 674,362; python: 191,568; objc: 73,855; f90: 42,327; lisp: 31,913; pascal: 11,973; javascript: 10,144; sh: 9,421; perl: 7,447; ml: 5,527; awk: 3,523; makefile: 2,520; xml: 885; cs: 573; fortran: 567
file content (20 lines) | stat: -rw-r--r-- 620 bytes parent folder | download 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
 
; RUN: opt -passes=instcombine -S < %s | FileCheck %s

target datalayout = "e-m:e-p:64:64:64-i64:64-f80:128-n8:16:32:64-S128"

; CHECK-LABEL: @test_load_load_combine_metadata(
; Check that dereferenceable_or_null metadata is combined
; CHECK: load i32*, i32** %0
; CHECK-SAME: !dereferenceable_or_null ![[DEREF:[0-9]+]]
define void @test_load_load_combine_metadata(i32**, i32**, i32**) {
  %a = load i32*, i32** %0, !dereferenceable_or_null !0
  %b = load i32*, i32** %0, !dereferenceable_or_null !1
  store i32 0, i32* %a
  store i32 0, i32* %b
  ret void
}

; CHECK: ![[DEREF]] = !{i64 4}

!0 = !{i64 4}
!1 = !{i64 8}