File: a57-csel.ll

package info (click to toggle)
llvm-toolchain-7 1%3A7.0.1-8
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • 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 (12 lines) | stat: -rw-r--r-- 431 bytes parent folder | download | duplicates (17)
1
2
3
4
5
6
7
8
9
10
11
12
; RUN: llc -mtriple=aarch64-none-linux-gnu < %s -mcpu=cortex-a57 -aarch64-enable-early-ifcvt=false | FileCheck %s

; Check that the select isn't expanded into a branch sequence
; when the icmp's first operand %x0 is from load.
define i64 @f(i64 %a, i64 %b, i64* %c, i64 %d, i64 %e) {
  ; CHECK: csel
  %x0 = load i64, i64* %c
  %x1 = icmp eq i64 %x0, 0
  %x2 = select i1 %x1, i64 %a, i64 %b
  %x3 = add i64 %x2, %d
  ret i64 %x3
}