view test/CodeGen/NVPTX/ldu-i8.ll @ 100:7d135dc70f03

LLVM 3.9
author Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
date Tue, 26 Jan 2016 22:53:40 +0900
parents 54457678186b
children
line wrap: on
line source

; RUN: llc < %s -march=nvptx -mcpu=sm_20 | FileCheck %s

target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v16:16:16-v32:32:32-v64:64:64-v128:128:128-n16:32:64"

declare i8 @llvm.nvvm.ldu.global.i.i8.p0i8(i8*, i32)

define i8 @foo(i8* %a) {
; Ensure we properly truncate off the high-order 24 bits
; CHECK:        ldu.global.u8
; CHECK:        cvt.u32.u16
; CHECK:        and.b32         %r{{[0-9]+}}, %r{{[0-9]+}}, 255
  %val = tail call i8 @llvm.nvvm.ldu.global.i.i8.p0i8(i8* %a, i32 4)
  ret i8 %val
}