File: constant-hoisting-optnone.ll

package info (click to toggle)
llvm-toolchain-19 1%3A19.1.7-3
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,998,520 kB
  • sloc: cpp: 6,951,680; ansic: 1,486,157; asm: 913,598; python: 232,024; f90: 80,126; objc: 75,281; lisp: 37,276; pascal: 16,990; sh: 10,009; ml: 5,058; perl: 4,724; awk: 3,523; makefile: 3,167; javascript: 2,504; xml: 892; fortran: 664; cs: 573
file content (21 lines) | stat: -rw-r--r-- 786 bytes parent folder | download | duplicates (13) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
 
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mcpu=generic | FileCheck %s
;
; Verify that pass 'Constant Hoisting' is not run on optnone functions.
; Without optnone, Pass 'Constant Hoisting' would firstly hoist
; constant 0xBEEBEEBEC, and then rebase the other constant
; (i.e. constant 0xBEEBEEBF4) with respect to the previous one.
; With optnone, we check that constants are not coalesced.

define i64 @constant_hoisting_optnone() #0 {
; CHECK-LABEL: @constant_hoisting_optnone
; CHECK-DAG: movabsq {{.*#+}} imm = 0xBEEBEEBF4
; CHECK-DAG: movabsq {{.*#+}} imm = 0xBEEBEEBEC
; CHECK: ret
entry:
  %0 = load i64, ptr inttoptr (i64 51250129900 to ptr)
  %1 = load i64, ptr inttoptr (i64 51250129908 to ptr)
  %2 = add i64 %0, %1
  ret i64 %2
}

attributes #0 = { optnone noinline }