llvm-6502/test/CodeGen/NVPTX/ldu-i8.ll
2013-07-01 12:58:48 +00:00

15 lines
531 B
LLVM

; 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(i8*)
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(i8* %a)
ret i8 %val
}