File: arm64-extend.ll

package info (click to toggle)
llvm-toolchain-7 1%3A7.0.1-8~deb9u3
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 733,456 kB
  • sloc: cpp: 3,776,651; ansic: 633,271; asm: 350,301; python: 142,716; objc: 107,612; sh: 22,626; lisp: 11,056; perl: 7,999; pascal: 6,742; ml: 5,537; awk: 3,536; makefile: 2,557; cs: 2,027; xml: 841; ruby: 156
file content (15 lines) | stat: -rw-r--r-- 513 bytes parent folder | download | duplicates (20) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
 
; RUN: llc < %s -mtriple=arm64-apple-ios | FileCheck %s
@array = external global [0 x i32]

define i64 @foo(i32 %i) {
; CHECK: foo
; CHECK:  adrp  x[[REG:[0-9]+]], _array@GOTPAGE
; CHECK:  ldr x[[REG1:[0-9]+]], [x[[REG]], _array@GOTPAGEOFF]
; CHECK:  ldrsw x0, [x[[REG1]], w0, sxtw #2]
; CHECK:  ret
  %idxprom = sext i32 %i to i64
  %arrayidx = getelementptr inbounds [0 x i32], [0 x i32]* @array, i64 0, i64 %idxprom
  %tmp1 = load i32, i32* %arrayidx, align 4
  %conv = sext i32 %tmp1 to i64
  ret i64 %conv
}