File: no-stack-arg-probe.ll

package info (click to toggle)
llvm-toolchain-21 1%3A21.1.4-5
  • links: PTS, VCS
  • area: main
  • in suites: sid
  • size: 2,236,516 kB
  • sloc: cpp: 7,619,569; ansic: 1,433,956; asm: 1,058,748; python: 252,181; f90: 94,671; objc: 70,753; lisp: 42,813; pascal: 18,401; sh: 8,601; ml: 5,111; perl: 4,720; makefile: 3,585; awk: 3,523; javascript: 2,272; xml: 892; fortran: 770
file content (38 lines) | stat: -rw-r--r-- 827 bytes parent folder | download | duplicates (38)
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
27
28
29
30
31
32
33
34
35
36
37
38
; This test is attempting to detect that the compiler disables stack
; probe calls when the corresponding option is specified.
;
; RUN: llc -mtriple=i686-windows-msvc < %s | FileCheck %s

target datalayout = "e-m:w-p:32:32-i64:64-f80:32-n8:16:32-S32"

define i32 @test1() "no-stack-arg-probe" {
  %buffer = alloca [4095 x i8]

  ret i32 0

; CHECK-LABEL: _test1:
; CHECK-NOT: movl $4095, %eax
; CHECK: subl $4095, %esp
; CHECK-NOT: calll __chkstk
}

define i32 @test2() "no-stack-arg-probe" {
  %buffer = alloca [4096 x i8]

  ret i32 0

; CHECK-LABEL: _test2:
; CHECK-NOT: movl $4096, %eax
; CHECK: subl $4096, %esp
; CHECK-NOT: calll __chkstk
}

define i32 @test3(i32 %size) "no-stack-arg-probe" {
  %buffer = alloca i8, i32 %size

  ret i32 0

; CHECK-LABEL: _test3:
; CHECK: subl {{.*}}, %esp
; CHECK-NOT: calll __chkstk
}