File: vecreduce-propagate-sd-flags.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 (31 lines) | stat: -rw-r--r-- 1,217 bytes parent folder | download | duplicates (3)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
; REQUIRES: arm-registered-target
; REQUIRES: asserts
; RUN: llc -o /dev/null %s -debug-only=legalize-types 2>&1 | FileCheck %s

; This test check that when v4f64 gets broken down to two v2f64 it maintains
; the "nnan" flags.

; CHECK: Legalizing node: [[VFOUR:t.*]]: v4f64 = BUILD_VECTOR
; CHECK-NEXT: Analyzing result type: v4f64
; CHECK-NEXT: Split node result: [[VFOUR]]: v4f64 = BUILD_VECTOR

; CHECK: Legalizing node: [[VTWO:t.*]]: v2f64 = BUILD_VECTOR
; CHECK: Legally typed node: [[VTWO]]: v2f64 = BUILD_VECTOR
; CHECK: Legalizing node: t26: v2f64 = fmaxnum nnan reassoc [[VTWO]], [[VTWO]]

target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
target triple = "aarch64--linux-gnu"


; Function Attrs: norecurse nounwind
define fastcc double @test() unnamed_addr #1 {
entry:
 %0 = insertelement <4 x double> undef, double 1.0, i32 0
 %1 = insertelement <4 x double> %0, double 1.0, i32 1
 %2 = insertelement <4 x double> %1, double 1.0, i32 2
 %3 = insertelement <4 x double> %2, double 1.0, i32 3
 %4 = call nnan reassoc double @llvm.experimental.vector.reduce.fmax.f64.v4f64(<4 x double> %3)
 ret double %4
}

declare double @llvm.experimental.vector.reduce.fmax.f64.v4f64(<4 x double>)