File: vector-inseltextelt.ll

package info (click to toggle)
llvm-toolchain-20 1%3A20.1.6-1~exp1
  • links: PTS, VCS
  • area: main
  • in suites: experimental
  • size: 2,111,304 kB
  • sloc: cpp: 7,438,677; ansic: 1,393,822; asm: 1,012,926; python: 241,650; f90: 86,635; objc: 75,479; lisp: 42,144; pascal: 17,286; sh: 10,027; ml: 5,082; perl: 4,730; awk: 3,523; makefile: 3,349; javascript: 2,251; xml: 892; fortran: 672
file content (23 lines) | stat: -rw-r--r-- 826 bytes parent folder | download | duplicates (14) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
 
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -passes=instsimplify -S | FileCheck %s

; extracting a just-inserted element should yield the original value
define float @constant_index(<4 x float> %x, float %val) {
; CHECK-LABEL: @constant_index(
; CHECK-NEXT:    ret float [[VAL:%.*]]
;
  %ins = insertelement <4 x float> %x, float %val, i32 1
  %ext = extractelement <4 x float> %ins, i32 1
  ret float %ext
}

; extracting a just-inserted element should yield the original value even if
; the index is dynamic
define float @dynamic_index(<4 x float> %x, float %val, i32 %idx) {
; CHECK-LABEL: @dynamic_index(
; CHECK-NEXT:    ret float [[VAL:%.*]]
;
  %ins = insertelement <4 x float> %x, float %val, i32 %idx
  %ext = extractelement <4 x float> %ins, i32 %idx
  ret float %ext
}