File: simd-build-pair.ll

package info (click to toggle)
llvm-toolchain-9 1%3A9.0.1-16
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 882,436 kB
  • sloc: cpp: 4,167,636; ansic: 714,256; asm: 457,610; python: 155,927; objc: 65,094; sh: 42,856; lisp: 26,908; perl: 7,786; pascal: 7,722; makefile: 6,881; ml: 5,581; awk: 3,648; cs: 2,027; xml: 888; javascript: 381; ruby: 156
file content (33 lines) | stat: -rw-r--r-- 1,383 bytes parent folder | download | duplicates (2)
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
32
33
; RUN: llc < %s -asm-verbose=false -verify-machineinstrs -disable-wasm-fallthrough-return-opt -wasm-disable-explicit-locals -wasm-keep-registers -mattr=simd128 | FileCheck %s --check-prefixes CHECK

target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
target triple = "wasm32-unknown-unknown"

; Test that BUILD_PAIR dag nodes are correctly lowered.
; This code produces a selection DAG like the following:

;    t0: ch = EntryToken
;  t3: v4i32,ch = load<(load 16 from `<4 x i32>* undef`)> t0, undef:i32, undef:i32
;        t30: i32 = extract_vector_elt t3, Constant:i32<2>
;        t28: i32 = extract_vector_elt t3, Constant:i32<3>
;      t24: i64 = build_pair t30, t28
;    t8: ch = store<(store 8 into `i64* undef`, align 1)> t3:1, t24, undef:i32, undef:i32
;  t9: ch = WebAssemblyISD::RETURN t8

; CHECK:      i32x4.extract_lane
; CHECK-NEXT: i64.extend_i32_u
; CHECK-NEXT: i32x4.extract_lane
; CHECK-NEXT: i64.extend_i32_u
; CHECK-NEXT: i64.const {{.*}} 32
; CHECK-NEXT: i64.shl
; CHECK-NEXT: i64.or
; CHECK-NEXT: i64.store
define void @build_pair_i32s() {
entry:
  %0 = load <4 x i32>, <4 x i32>* undef, align 16
  %shuffle.i184 = shufflevector <4 x i32> %0, <4 x i32> undef, <4 x i32> <i32 2, i32 3, i32 undef, i32 undef>
  %bc357 = bitcast <4 x i32> %shuffle.i184 to <2 x i64>
  %1 = extractelement <2 x i64> %bc357, i32 0
  store i64 %1, i64* undef, align 1
  ret void
}