You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
122 lines
2.5 KiB
122 lines
2.5 KiB
; Test sequences that can use ROSBG.
|
|
;
|
|
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
|
|
|
|
; Test the simple case.
|
|
define i32 @f1(i32 %a, i32 %b) {
|
|
; CHECK-LABEL: f1:
|
|
; CHECK: rosbg %r2, %r3, 59, 59, 0
|
|
; CHECK: br %r14
|
|
%andb = and i32 %b, 16
|
|
%or = or i32 %a, %andb
|
|
ret i32 %or
|
|
}
|
|
|
|
; ...and again with i64.
|
|
define i64 @f2(i64 %a, i64 %b) {
|
|
; CHECK-LABEL: f2:
|
|
; CHECK: rosbg %r2, %r3, 59, 59, 0
|
|
; CHECK: br %r14
|
|
%andb = and i64 %b, 16
|
|
%or = or i64 %a, %andb
|
|
ret i64 %or
|
|
}
|
|
|
|
; Test a case where wraparound is needed.
|
|
define i32 @f3(i32 %a, i32 %b) {
|
|
; CHECK-LABEL: f3:
|
|
; CHECK: rosbg %r2, %r3, 63, 60, 0
|
|
; CHECK: br %r14
|
|
%andb = and i32 %b, -7
|
|
%or = or i32 %a, %andb
|
|
ret i32 %or
|
|
}
|
|
|
|
; ...and again with i64.
|
|
define i64 @f4(i64 %a, i64 %b) {
|
|
; CHECK-LABEL: f4:
|
|
; CHECK: rosbg %r2, %r3, 63, 60, 0
|
|
; CHECK: br %r14
|
|
%andb = and i64 %b, -7
|
|
%or = or i64 %a, %andb
|
|
ret i64 %or
|
|
}
|
|
|
|
; Test a case with just a shift.
|
|
define i32 @f6(i32 %a, i32 %b) {
|
|
; CHECK-LABEL: f6:
|
|
; CHECK: rosbg %r2, %r3, 32, 51, 12
|
|
; CHECK: br %r14
|
|
%shrb = shl i32 %b, 12
|
|
%or = or i32 %a, %shrb
|
|
ret i32 %or
|
|
}
|
|
|
|
; ...and again with i64.
|
|
define i64 @f7(i64 %a, i64 %b) {
|
|
; CHECK-LABEL: f7:
|
|
; CHECK: rosbg %r2, %r3, 0, 51, 12
|
|
; CHECK: br %r14
|
|
%shrb = shl i64 %b, 12
|
|
%or = or i64 %a, %shrb
|
|
ret i64 %or
|
|
}
|
|
|
|
; Test a case with just a rotate. This can't use ROSBG.
|
|
define i32 @f8(i32 %a, i32 %b) {
|
|
; CHECK-LABEL: f8:
|
|
; CHECK: rll {{%r[0-5]}}
|
|
; CHECK: or {{%r[0-5]}}
|
|
; CHECK: br %r14
|
|
%shlb = shl i32 %b, 30
|
|
%shrb = lshr i32 %b, 2
|
|
%rotlb = or i32 %shlb, %shrb
|
|
%or = or i32 %a, %rotlb
|
|
ret i32 %or
|
|
}
|
|
|
|
; ...and again with i64, which can.
|
|
define i64 @f9(i64 %a, i64 %b) {
|
|
; CHECK-LABEL: f9:
|
|
; CHECK: rosbg %r2, %r3, 0, 63, 47
|
|
; CHECK: br %r14
|
|
%shlb = shl i64 %b, 47
|
|
%shrb = lshr i64 %b, 17
|
|
%rotlb = or i64 %shlb, %shrb
|
|
%or = or i64 %a, %rotlb
|
|
ret i64 %or
|
|
}
|
|
|
|
; Test a case with a shift and AND.
|
|
define i32 @f10(i32 %a, i32 %b) {
|
|
; CHECK-LABEL: f10:
|
|
; CHECK: rosbg %r2, %r3, 56, 59, 4
|
|
; CHECK: br %r14
|
|
%shrb = shl i32 %b, 4
|
|
%andb = and i32 %shrb, 240
|
|
%or = or i32 %a, %andb
|
|
ret i32 %or
|
|
}
|
|
|
|
; ...and again with i64.
|
|
define i64 @f11(i64 %a, i64 %b) {
|
|
; CHECK-LABEL: f11:
|
|
; CHECK: rosbg %r2, %r3, 56, 59, 4
|
|
; CHECK: br %r14
|
|
%shrb = shl i64 %b, 4
|
|
%andb = and i64 %shrb, 240
|
|
%or = or i64 %a, %andb
|
|
ret i64 %or
|
|
}
|
|
|
|
; Check the handling of zext and OR, which can use ROSBG.
|
|
define i64 @f12(i64 %a, i32 %b) {
|
|
; CHECK-LABEL: f12:
|
|
; CHECK: rosbg %r2, %r3, 32, 63, 0
|
|
; CHECK: br %r14
|
|
%add = add i32 %b, 1
|
|
%ext = zext i32 %add to i64
|
|
%or = or i64 %a, %ext
|
|
ret i64 %or
|
|
}
|