File: no-prolog-kill.ll

package info (click to toggle)
llvm-toolchain-20 1%3A20.1.6-1~exp1
  • links: PTS, VCS
  • area: main
  • in suites: experimental
  • size: 2,111,304 kB
  • sloc: cpp: 7,438,677; ansic: 1,393,822; asm: 1,012,926; python: 241,650; f90: 86,635; objc: 75,479; lisp: 42,144; pascal: 17,286; sh: 10,027; ml: 5,082; perl: 4,730; awk: 3,523; makefile: 3,349; javascript: 2,251; xml: 892; fortran: 672
file content (21 lines) | stat: -rw-r--r-- 643 bytes parent folder | download | duplicates (15) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
 
; RUN: llc -verify-machineinstrs -o - %s | FileCheck %s
target triple = "x86_64--"

; This function gets a AL live-in and at same time saves+restores RAX. We must
; not add a kill flag to the "PUSHQ %rax" or the machine verifier will complain.
; CHECK-LABEL: test:
; CHECK: pushq %rax
; CHECK: testb %al, %al
; CHECK: je .LBB
define void @test(i64 %a, ptr %b, ...)  {
entry:
  %bar = alloca i8
  call void @llvm.va_start(ptr %bar)
  call void @llvm.eh.unwind.init()
  call void @llvm.eh.return.i64(i64 %a, ptr %b)
  unreachable
}

declare void @llvm.eh.return.i64(i64, ptr)
declare void @llvm.eh.unwind.init()
declare void @llvm.va_start(ptr)