llvm/test/CodeGen/AVR/trunc.ll
Dylan McKay 619ca04281 [AVR] Add a selection of CodeGen tests
Summary: This adds all of the CodeGen tests which currently pass.

Reviewers: arsenm, kparzysz

Subscribers: japaric, wdng

Differential Revision: https://reviews.llvm.org/D26388

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@286418 91177308-0d34-0410-b5e6-96231b3b80d8
2016-11-09 23:46:52 +00:00

19 lines
386 B
LLVM

; RUN: llc < %s -march=avr | FileCheck %s
define i8 @trunc8_loreg(i16 %x, i16 %y) {
; CHECK-LABEL: trunc8_loreg:
; CHECK: mov r24, r22
; CHECK-NEXT: ret
%conv = trunc i16 %y to i8
ret i8 %conv
}
define i8 @trunc8_hireg(i16 %x, i16 %y) {
; CHECK-LABEL: trunc8_hireg:
; CHECK: mov r24, r23
; CHECK-NEXT: ret
%shr1 = lshr i16 %y, 8
%conv = trunc i16 %shr1 to i8
ret i8 %conv
}