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.
119 lines
2.7 KiB
119 lines
2.7 KiB
; Test sequences that can use RISBG with a normal first operand.
|
|
;
|
|
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
|
|
|
|
; Test a case with two ANDs.
|
|
define i32 @f1(i32 %a, i32 %b) {
|
|
; CHECK-LABEL: f1:
|
|
; CHECK: risbg %r2, %r3, 60, 62, 0
|
|
; CHECK: br %r14
|
|
%anda = and i32 %a, -15
|
|
%andb = and i32 %b, 14
|
|
%or = or i32 %anda, %andb
|
|
ret i32 %or
|
|
}
|
|
|
|
; ...and again with i64.
|
|
define i64 @f2(i64 %a, i64 %b) {
|
|
; CHECK-LABEL: f2:
|
|
; CHECK: risbg %r2, %r3, 60, 62, 0
|
|
; CHECK: br %r14
|
|
%anda = and i64 %a, -15
|
|
%andb = and i64 %b, 14
|
|
%or = or i64 %anda, %andb
|
|
ret i64 %or
|
|
}
|
|
|
|
; Test a case with two ANDs and a shift.
|
|
define i32 @f3(i32 %a, i32 %b) {
|
|
; CHECK-LABEL: f3:
|
|
; CHECK: risbg %r2, %r3, 60, 63, 56
|
|
; CHECK: br %r14
|
|
%anda = and i32 %a, -16
|
|
%shr = lshr i32 %b, 8
|
|
%andb = and i32 %shr, 15
|
|
%or = or i32 %anda, %andb
|
|
ret i32 %or
|
|
}
|
|
|
|
; ...and again with i64.
|
|
define i64 @f4(i64 %a, i64 %b) {
|
|
; CHECK-LABEL: f4:
|
|
; CHECK: risbg %r2, %r3, 60, 63, 56
|
|
; CHECK: br %r14
|
|
%anda = and i64 %a, -16
|
|
%shr = lshr i64 %b, 8
|
|
%andb = and i64 %shr, 15
|
|
%or = or i64 %anda, %andb
|
|
ret i64 %or
|
|
}
|
|
|
|
; Test a case with a single AND and a left shift.
|
|
define i32 @f5(i32 %a, i32 %b) {
|
|
; CHECK-LABEL: f5:
|
|
; CHECK: risbg %r2, %r3, 32, 53, 10
|
|
; CHECK: br %r14
|
|
%anda = and i32 %a, 1023
|
|
%shlb = shl i32 %b, 10
|
|
%or = or i32 %anda, %shlb
|
|
ret i32 %or
|
|
}
|
|
|
|
; ...and again with i64.
|
|
define i64 @f6(i64 %a, i64 %b) {
|
|
; CHECK-LABEL: f6:
|
|
; CHECK: risbg %r2, %r3, 0, 53, 10
|
|
; CHECK: br %r14
|
|
%anda = and i64 %a, 1023
|
|
%shlb = shl i64 %b, 10
|
|
%or = or i64 %anda, %shlb
|
|
ret i64 %or
|
|
}
|
|
|
|
; Test a case with a single AND and a right shift.
|
|
define i32 @f7(i32 %a, i32 %b) {
|
|
; CHECK-LABEL: f7:
|
|
; CHECK: risbg %r2, %r3, 40, 63, 56
|
|
; CHECK: br %r14
|
|
%anda = and i32 %a, -16777216
|
|
%shrb = lshr i32 %b, 8
|
|
%or = or i32 %anda, %shrb
|
|
ret i32 %or
|
|
}
|
|
|
|
; ...and again with i64.
|
|
define i64 @f8(i64 %a, i64 %b) {
|
|
; CHECK-LABEL: f8:
|
|
; CHECK: risbg %r2, %r3, 8, 63, 56
|
|
; CHECK: br %r14
|
|
%anda = and i64 %a, -72057594037927936
|
|
%shrb = lshr i64 %b, 8
|
|
%or = or i64 %anda, %shrb
|
|
ret i64 %or
|
|
}
|
|
|
|
; Check that we can get the case where a 64-bit shift feeds a 32-bit or of
|
|
; ands with complement masks.
|
|
define signext i32 @f9(i64 %x, i32 signext %y) {
|
|
; CHECK-LABEL: f9:
|
|
; CHECK: risbg [[REG:%r[0-5]]], %r2, 48, 63, 16
|
|
; CHECK: lgfr %r2, [[REG]]
|
|
%shr6 = lshr i64 %x, 48
|
|
%conv = trunc i64 %shr6 to i32
|
|
%and1 = and i32 %y, -65536
|
|
%or = or i32 %conv, %and1
|
|
ret i32 %or
|
|
}
|
|
|
|
; Check that we don't get the case where a 64-bit shift feeds a 32-bit or of
|
|
; ands with incompatible masks.
|
|
define signext i32 @f10(i64 %x, i32 signext %y) {
|
|
; CHECK-LABEL: f10:
|
|
; CHECK: nilf %r3, 4278190080
|
|
%shr6 = lshr i64 %x, 48
|
|
%conv = trunc i64 %shr6 to i32
|
|
%and1 = and i32 %y, -16777216
|
|
%or = or i32 %conv, %and1
|
|
ret i32 %or
|
|
}
|