File: ipra-transform.ll

package info (click to toggle)
llvm-toolchain-16 1%3A16.0.6-15~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,634,792 kB
  • sloc: cpp: 6,179,261; ansic: 1,216,205; asm: 741,319; python: 196,614; objc: 75,325; f90: 49,640; lisp: 32,396; pascal: 12,286; sh: 9,394; perl: 7,442; ml: 5,494; awk: 3,523; makefile: 2,723; javascript: 1,206; xml: 886; fortran: 581; cs: 573
file content (32 lines) | stat: -rw-r--r-- 744 bytes parent folder | download | duplicates (23) 
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
 

; RUN: llc < %s | FileCheck %s -check-prefix=NOIPRA
; RUN: llc -enable-ipra < %s | FileCheck %s


target triple = "x86_64-unknown-unknown"
define void @bar1() {
	ret void
}
define preserve_allcc void @foo()#0 {
; Due to preserve_allcc foo() will save some registers at start of foo()
; prefix NOIPRA will verify that.
; NOIPRA-LABEL: foo:
; NOIPRA: pushq	%r10
; NOIPRA-NEXT: pushq %r9
; NOIPRA-NEXT: pushq %r8
; NOIPRA: callq bar1
; When IPRA is present above registers will not be saved and that is verified
; by prefix CHECK.
; CHECK: foo:
; CHECK-NOT: pushq %r10
; CHECK-NOT: pushq %r9
; CHECK-NOT: pushq %r8
; CHECK: callq bar1
	call void @bar1()
	call void @bar2()
	ret void
}
define void @bar2() {
	ret void
}
attributes #0 = {nounwind}