File: fp128-folding.ll

package info (click to toggle)
llvm-toolchain-4.0 1%3A4.0.1-10~deb9u2
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 493,332 kB
  • sloc: cpp: 2,698,100; ansic: 552,773; asm: 128,821; python: 121,589; objc: 105,054; sh: 21,174; lisp: 6,758; ml: 5,532; perl: 5,311; pascal: 5,245; makefile: 2,083; cs: 1,868; xml: 686; php: 212; csh: 117
file content (17 lines) | stat: -rw-r--r-- 567 bytes parent folder | download | duplicates (20)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
; RUN: llc -mtriple=aarch64-linux-gnu -verify-machineinstrs -o - %s | FileCheck %s
declare void @bar(i8*, i8*, i32*)

; SelectionDAG used to try to fold some fp128 operations using the ppc128 type,
; which is not supported.

define fp128 @test_folding() {
; CHECK-LABEL: test_folding:
  %l = alloca i32
  store i32 42, i32* %l
  %val = load i32, i32* %l
  %fpval = sitofp i32 %val to fp128
  ; If the value is loaded from a constant pool into an fp128, it's been folded
  ; successfully.
; CHECK: ldr {{q[0-9]+}}, [{{x[0-9]+}}, {{#?}}:lo12:.LCPI
  ret fp128 %fpval
}