blob: 0b1e2b477c2a52f3f4e5a974b73e85dad0ce5f47 [file] [log] [blame]
; Test that CodeGenPrepare respects endianness when splitting a store.
;
; RUN: llc -mtriple=s390x-linux-gnu -mcpu=z13 -force-split-store < %s | FileCheck %s
define void @fun(i16* %Src, i16* %Dst) {
; CHECK-LABEL: # %bb.0:
; CHECK: lh %r0, 0(%r2)
; CHECK-NEXT: stc %r0, 1(%r3)
; CHECK-NEXT: srl %r0, 8
; CHECK-NEXT: stc %r0, 0(%r3)
; CHECK-NEXT: br %r14
%1 = load i16, i16* %Src
%2 = trunc i16 %1 to i8
%3 = lshr i16 %1, 8
%4 = trunc i16 %3 to i8
%5 = zext i8 %2 to i16
%6 = zext i8 %4 to i16
%7 = shl nuw i16 %6, 8
%8 = or i16 %7, %5
store i16 %8, i16* %Dst
ret void
}