File: sve-alloca-merge.ll

package info (click to toggle)
llvm-toolchain-19 1%3A19.1.7-3
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,998,520 kB
  • sloc: cpp: 6,951,680; ansic: 1,486,157; asm: 913,598; python: 232,024; f90: 80,126; objc: 75,281; lisp: 37,276; pascal: 16,990; sh: 10,009; ml: 5,058; perl: 4,724; awk: 3,523; makefile: 3,167; javascript: 2,504; xml: 892; fortran: 664; cs: 573
file content (26 lines) | stat: -rw-r--r-- 837 bytes parent folder | download | duplicates (10) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
 
; RUN: opt -mtriple=aarch64--linux-gnu -mattr=+sve < %s -passes=inline -S | FileCheck %s

define void @bar(ptr %a) {
entry:
  %b = alloca <vscale x 2 x i64>, align 16
  store <vscale x 2 x i64> zeroinitializer, ptr %b, align 16
  %c = load <vscale x 2 x i64>, ptr %a, align 16
  %d = load <vscale x 2 x i64>, ptr %b, align 16
  %e = add <vscale x 2 x i64> %c, %d
  %f = add <vscale x 2 x i64> %e, %c
  store <vscale x 2 x i64> %f, ptr %a, align 16
  ret void
}

define i64 @foo() {
; CHECK-LABEL: @foo(
; CHECK: call void @llvm.lifetime.start.p0(i64 -1, ptr %{{.*}})
; CHECK: call void @llvm.lifetime.end.p0(i64 -1, ptr %{{.*}})
entry:
  %a = alloca <vscale x 2 x i64>, align 16
  store <vscale x 2 x i64> zeroinitializer, ptr %a, align 16
  store i64 1, ptr %a, align 8
  call void @bar(ptr %a)
  %el = load i64, ptr %a
  ret i64 %el
}