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llvm-mirror/test/CodeGen/AVR/trunc.ll
Dylan McKay 391ac08575 [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

llvm-svn: 286418
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
}