mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-29 10:32:47 +00:00
113 lines
2.5 KiB
LLVM
113 lines
2.5 KiB
LLVM
|
; Test sequences that can use RXSBG.
|
||
|
|
;
|
||
|
|
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
|
||
|
|
|
||
|
|
; Test the simple case.
|
||
|
|
define i32 @f1(i32 %a, i32 %b) {
|
||
|
|
; CHECK-LABEL: f1:
|
||
|
|
; CHECK: rxsbg %r2, %r3, 59, 59, 0
|
||
|
|
; CHECK: br %r14
|
||
|
|
%andb = and i32 %b, 16
|
||
|
|
%xor = xor i32 %a, %andb
|
||
|
|
ret i32 %xor
|
||
|
|
}
|
||
|
|
|
||
|
|
; ...and again with i64.
|
||
|
|
define i64 @f2(i64 %a, i64 %b) {
|
||
|
|
; CHECK-LABEL: f2:
|
||
|
|
; CHECK: rxsbg %r2, %r3, 59, 59, 0
|
||
|
|
; CHECK: br %r14
|
||
|
|
%andb = and i64 %b, 16
|
||
|
|
%xor = xor i64 %a, %andb
|
||
|
|
ret i64 %xor
|
||
|
|
}
|
||
|
|
|
||
|
|
; Test a case where wraparound is needed.
|
||
|
|
define i32 @f3(i32 %a, i32 %b) {
|
||
|
|
; CHECK-LABEL: f3:
|
||
|
|
; CHECK: rxsbg %r2, %r3, 63, 60, 0
|
||
|
|
; CHECK: br %r14
|
||
|
|
%andb = and i32 %b, -7
|
||
|
|
%xor = xor i32 %a, %andb
|
||
|
|
ret i32 %xor
|
||
|
|
}
|
||
|
|
|
||
|
|
; ...and again with i64.
|
||
|
|
define i64 @f4(i64 %a, i64 %b) {
|
||
|
|
; CHECK-LABEL: f4:
|
||
|
|
; CHECK: rxsbg %r2, %r3, 63, 60, 0
|
||
|
|
; CHECK: br %r14
|
||
|
|
%andb = and i64 %b, -7
|
||
|
|
%xor = xor i64 %a, %andb
|
||
|
|
ret i64 %xor
|
||
|
|
}
|
||
|
|
|
||
|
|
; Test a case with just a shift.
|
||
|
|
define i32 @f6(i32 %a, i32 %b) {
|
||
|
|
; CHECK-LABEL: f6:
|
||
|
|
; CHECK: rxsbg %r2, %r3, 32, 51, 12
|
||
|
|
; CHECK: br %r14
|
||
|
|
%shlb = shl i32 %b, 12
|
||
|
|
%xor = xor i32 %a, %shlb
|
||
|
|
ret i32 %xor
|
||
|
|
}
|
||
|
|
|
||
|
|
; ...and again with i64.
|
||
|
|
define i64 @f7(i64 %a, i64 %b) {
|
||
|
|
; CHECK-LABEL: f7:
|
||
|
|
; CHECK: rxsbg %r2, %r3, 0, 51, 12
|
||
|
|
; CHECK: br %r14
|
||
|
|
%shlb = shl i64 %b, 12
|
||
|
|
%xor = xor i64 %a, %shlb
|
||
|
|
ret i64 %xor
|
||
|
|
}
|
||
|
|
|
||
|
|
; Test a case with just a rotate (using XOR for the rotate combination too,
|
||
|
|
; to test that this kind of rotate does get recognised by the target-
|
||
|
|
; independent code). This can't use RXSBG.
|
||
|
|
define i32 @f8(i32 %a, i32 %b) {
|
||
|
|
; CHECK-LABEL: f8:
|
||
|
|
; CHECK: rll {{%r[0-5]}}
|
||
|
|
; CHECK: xr {{%r[0-5]}}
|
||
|
|
; CHECK: br %r14
|
||
|
|
%shlb = shl i32 %b, 30
|
||
|
|
%shrb = lshr i32 %b, 2
|
||
|
|
%rotlb = xor i32 %shlb, %shrb
|
||
|
|
%xor = xor i32 %a, %rotlb
|
||
|
|
ret i32 %xor
|
||
|
|
}
|
||
|
|
|
||
|
|
; ...and again with i64, which can use RXSBG for the rotate.
|
||
|
|
define i64 @f9(i64 %a, i64 %b) {
|
||
|
|
; CHECK-LABEL: f9:
|
||
|
|
; CHECK: rxsbg %r2, %r3, 0, 63, 47
|
||
|
|
; CHECK: br %r14
|
||
|
|
%shlb = shl i64 %b, 47
|
||
|
|
%shrb = lshr i64 %b, 17
|
||
|
|
%rotlb = xor i64 %shlb, %shrb
|
||
|
|
%xor = xor i64 %a, %rotlb
|
||
|
|
ret i64 %xor
|
||
|
|
}
|
||
|
|
|
||
|
|
; Test a case with a shift and AND.
|
||
|
|
define i32 @f10(i32 %a, i32 %b) {
|
||
|
|
; CHECK-LABEL: f10:
|
||
|
|
; CHECK: rxsbg %r2, %r3, 56, 59, 4
|
||
|
|
; CHECK: br %r14
|
||
|
|
%shlb = shl i32 %b, 4
|
||
|
|
%andb = and i32 %shlb, 240
|
||
|
|
%xor = xor i32 %a, %andb
|
||
|
|
ret i32 %xor
|
||
|
|
}
|
||
|
|
|
||
|
|
; ...and again with i64.
|
||
|
|
define i64 @f11(i64 %a, i64 %b) {
|
||
|
|
; CHECK-LABEL: f11:
|
||
|
|
; CHECK: rxsbg %r2, %r3, 56, 59, 4
|
||
|
|
; CHECK: br %r14
|
||
|
|
%shlb = shl i64 %b, 4
|
||
|
|
%andb = and i64 %shlb, 240
|
||
|
|
%xor = xor i64 %a, %andb
|
||
|
|
ret i64 %xor
|
||
|
|
}
|