File: stacksave-restore.ll

package info (click to toggle)
llvm-toolchain-19 1%3A19.1.7-3~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm-proposed-updates
  • size: 1,998,492 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 (17 lines) | stat: -rw-r--r-- 490 bytes parent folder | download | duplicates (12) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
 
; RUN: llc < %s

; NVPTX can not select llvm.stacksave (dynamic_stackalloc) and llvm.stackrestore
; UNSUPPORTED: target=nvptx{{.*}}

declare ptr @llvm.stacksave()

declare void @llvm.stackrestore(ptr)

define ptr @test(i32 %N) {
        %tmp = call ptr @llvm.stacksave( )              ; <ptr> [#uses=1]
        %P = alloca i32, i32 %N         ; <ptr> [#uses=1]
        call void @llvm.stackrestore( ptr %tmp )
        %Q = alloca i32, i32 %N         ; <ptr> [#uses=0]
        ret ptr %P
}