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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
112 lines
2.2 KiB
LLVM
112 lines
2.2 KiB
LLVM
; Test moves of integers to 2-byte memory locations.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
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; Check the low end of the unsigned range.
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define void @f1(i16 *%ptr) {
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; CHECK: f1:
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; CHECK: mvhhi 0(%r2), 0
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; CHECK: br %r14
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store i16 0, i16 *%ptr
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ret void
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}
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; Check the high end of the signed range.
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define void @f2(i16 *%ptr) {
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; CHECK: f2:
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; CHECK: mvhhi 0(%r2), 32767
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; CHECK: br %r14
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store i16 32767, i16 *%ptr
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ret void
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}
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; Check the next value up.
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define void @f3(i16 *%ptr) {
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; CHECK: f3:
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; CHECK: mvhhi 0(%r2), -32768
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; CHECK: br %r14
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store i16 -32768, i16 *%ptr
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ret void
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}
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; Check the high end of the unsigned range.
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define void @f4(i16 *%ptr) {
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; CHECK: f4:
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; CHECK: mvhhi 0(%r2), -1
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; CHECK: br %r14
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store i16 65535, i16 *%ptr
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ret void
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}
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; Check -1.
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define void @f5(i16 *%ptr) {
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; CHECK: f5:
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; CHECK: mvhhi 0(%r2), -1
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; CHECK: br %r14
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store i16 -1, i16 *%ptr
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ret void
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}
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; Check the low end of the signed range.
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define void @f6(i16 *%ptr) {
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; CHECK: f6:
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; CHECK: mvhhi 0(%r2), -32768
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; CHECK: br %r14
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store i16 -32768, i16 *%ptr
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ret void
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}
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; Check the next value down.
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define void @f7(i16 *%ptr) {
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; CHECK: f7:
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; CHECK: mvhhi 0(%r2), 32767
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; CHECK: br %r14
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store i16 -32769, i16 *%ptr
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ret void
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}
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; Check the high end of the MVHHI range.
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define void @f8(i16 *%a) {
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; CHECK: f8:
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; CHECK: mvhhi 4094(%r2), 42
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; CHECK: br %r14
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%ptr = getelementptr i16 *%a, i64 2047
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store i16 42, i16 *%ptr
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ret void
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}
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; Check the next halfword up, which needs separate address logic.
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; Other sequences besides this one would be OK.
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define void @f9(i16 *%a) {
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; CHECK: f9:
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; CHECK: aghi %r2, 4096
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; CHECK: mvhhi 0(%r2), 42
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; CHECK: br %r14
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%ptr = getelementptr i16 *%a, i64 2048
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store i16 42, i16 *%ptr
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ret void
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}
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; Check negative displacements, which also need separate address logic.
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define void @f10(i16 *%a) {
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; CHECK: f10:
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; CHECK: aghi %r2, -2
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; CHECK: mvhhi 0(%r2), 42
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; CHECK: br %r14
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%ptr = getelementptr i16 *%a, i64 -1
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store i16 42, i16 *%ptr
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ret void
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}
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; Check that MVHHI does not allow an index
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define void @f11(i64 %src, i64 %index) {
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; CHECK: f11:
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; CHECK: agr %r2, %r3
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; CHECK: mvhhi 0(%r2), 42
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; CHECK: br %r14
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%add = add i64 %src, %index
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%ptr = inttoptr i64 %add to i16 *
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store i16 42, i16 *%ptr
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ret void
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}
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