File: vectors-with-mismatched-elements.ll

package info (click to toggle)
llvm-3.0 3.0-10
  • links: PTS, VCS
  • area: main
  • in suites: wheezy
  • size: 75,412 kB
  • sloc: cpp: 468,043; asm: 109,345; ansic: 13,782; sh: 12,935; ml: 4,716; python: 4,351; perl: 2,096; makefile: 1,905; pascal: 1,578; exp: 389; xml: 283; lisp: 187; csh: 117
file content (27 lines) | stat: -rw-r--r-- 981 bytes parent folder | download | duplicates (6)
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
; RUN: opt -scalarrepl -S < %s | FileCheck %s
; rdar://9786827

; SROA should be able to handle the mixed types and eliminate the allocas here.

; TODO: Currently it does this by falling back to integer "bags of bits".
; With enough cleverness, it should be possible to convert between <3 x i32>
; and <2 x i64> by using a combination of a bitcast and a shuffle.

; CHECK: {
; CHECK-NOT: alloca
; CHECK: }

target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128-n8:16:32"
target triple = "i386-apple-darwin11.0.0"

define <2 x i64> @foo() nounwind {
entry:
  %retval = alloca <3 x i32>, align 16
  %z = alloca <4 x i32>, align 16
  %tmp = load <4 x i32>* %z
  %tmp1 = shufflevector <4 x i32> %tmp, <4 x i32> undef, <3 x i32> <i32 0, i32 1, i32 2>
  store <3 x i32> %tmp1, <3 x i32>* %retval
  %0 = bitcast <3 x i32>* %retval to <2 x i64>*
  %1 = load <2 x i64>* %0, align 1
  ret <2 x i64> %1
}