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1431b3c2f5
This adds all CodeGen tests for the SystemZ target. This version of the patch incorporates feedback from a review by Sean Silva. Thanks to all reviewers! Patch by Richard Sandiford. llvm-svn: 181204
181 lines
3.7 KiB
LLVM
181 lines
3.7 KiB
LLVM
; Test 64-bit ANDs in which the second operand is constant.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
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; There is no 64-bit AND instruction for a mask of 1.
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; FIXME: we ought to be able to require "ngr %r2, %r0", but at the moment,
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; two-address optimisations force "ngr %r0, %r2; lgr %r2, %r0" instead.
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define i64 @f1(i64 %a) {
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; CHECK: f1:
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; CHECK: lghi %r0, 1
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; CHECK: ngr
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; CHECK: br %r14
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%and = and i64 %a, 1
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ret i64 %and
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}
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; Likewise 0xfffe.
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define i64 @f2(i64 %a) {
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; CHECK: f2:
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; CHECK: llill %r0, 65534
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; CHECK: ngr
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; CHECK: br %r14
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%and = and i64 %a, 65534
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ret i64 %and
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}
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; ...but 0xffff is a 16-bit zero extension.
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define i64 @f3(i64 %a) {
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; CHECK: f3:
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; CHECK: llghr %r2, %r2
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; CHECK: br %r14
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%and = and i64 %a, 65535
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ret i64 %and
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}
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; Check the next value up, which again has no dedicated instruction.
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define i64 @f4(i64 %a) {
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; CHECK: f4:
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; CHECK: llilh %r0, 1
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; CHECK: ngr
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; CHECK: br %r14
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%and = and i64 %a, 65536
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ret i64 %and
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}
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; Check 0xfffffffe.
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define i64 @f5(i64 %a) {
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; CHECK: f5:
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; CHECK: lilf %r0, 4294967294
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; CHECK: ngr
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; CHECK: br %r14
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%and = and i64 %a, 4294967294
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ret i64 %and
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}
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; Check the next value up, which is a 32-bit zero extension.
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define i64 @f6(i64 %a) {
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; CHECK: f6:
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; CHECK: llgfr %r2, %r2
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; CHECK: br %r14
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%and = and i64 %a, 4294967295
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ret i64 %and
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}
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; Check the lowest useful NIHF value (0x00000001_ffffffff).
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define i64 @f7(i64 %a) {
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; CHECK: f7:
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; CHECK: nihf %r2, 1
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; CHECK: br %r14
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%and = and i64 %a, 8589934591
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ret i64 %and
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}
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; Check the low end of the NIHH range (0x0000ffff_ffffffff).
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define i64 @f8(i64 %a) {
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; CHECK: f8:
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; CHECK: nihh %r2, 0
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; CHECK: br %r14
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%and = and i64 %a, 281474976710655
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ret i64 %and
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}
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; Check the highest useful NIHH value (0xfffeffff_ffffffff).
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define i64 @f9(i64 %a) {
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; CHECK: f9:
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; CHECK: nihh %r2, 65534
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; CHECK: br %r14
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%and = and i64 %a, -281474976710657
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ret i64 %and
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}
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; Check the highest useful NIHF value (0xfffefffe_ffffffff).
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define i64 @f10(i64 %a) {
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; CHECK: f10:
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; CHECK: nihf %r2, 4294901758
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; CHECK: br %r14
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%and = and i64 %a, -281479271677953
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ret i64 %and
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}
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; Check the low end of the NIHL range (0xffff0000_ffffffff).
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define i64 @f11(i64 %a) {
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; CHECK: f11:
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; CHECK: nihl %r2, 0
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; CHECK: br %r14
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%and = and i64 %a, -281470681743361
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ret i64 %and
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}
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; Check the highest useful NIHL value (0xfffffffe_ffffffff).
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define i64 @f12(i64 %a) {
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; CHECK: f12:
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; CHECK: nihl %r2, 65534
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; CHECK: br %r14
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%and = and i64 %a, -4294967297
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ret i64 %and
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}
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; Check the low end of the NILF range (0xffffffff_00000000).
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define i64 @f13(i64 %a) {
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; CHECK: f13:
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; CHECK: nilf %r2, 0
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; CHECK: br %r14
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%and = and i64 %a, -4294967296
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ret i64 %and
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}
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; Check the low end of the NILH range (0xffffffff_0000ffff).
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define i64 @f14(i64 %a) {
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; CHECK: f14:
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; CHECK: nilh %r2, 0
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; CHECK: br %r14
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%and = and i64 %a, -4294901761
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ret i64 %and
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}
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; Check the next value up, which must use NILF.
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define i64 @f15(i64 %a) {
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; CHECK: f15:
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; CHECK: nilf %r2, 65536
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; CHECK: br %r14
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%and = and i64 %a, -4294901760
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ret i64 %and
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}
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; Check the maximum useful NILF value (0xffffffff_fffefffe).
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define i64 @f16(i64 %a) {
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; CHECK: f16:
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; CHECK: nilf %r2, 4294901758
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; CHECK: br %r14
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%and = and i64 %a, -65538
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ret i64 %and
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}
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; Check the highest useful NILH value, which is one greater than the above.
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define i64 @f17(i64 %a) {
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; CHECK: f17:
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; CHECK: nilh %r2, 65534
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; CHECK: br %r14
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%and = and i64 %a, -65537
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ret i64 %and
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}
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; Check the low end of the NILL range, which is one greater again.
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define i64 @f18(i64 %a) {
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; CHECK: f18:
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; CHECK: nill %r2, 0
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; CHECK: br %r14
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%and = and i64 %a, -65536
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ret i64 %and
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}
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; Check the highest useful NILL value.
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define i64 @f19(i64 %a) {
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; CHECK: f19:
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; CHECK: nill %r2, 65534
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; CHECK: br %r14
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%and = and i64 %a, -2
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ret i64 %and
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}
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