Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

external/llvm/test/CodeGen/SystemZ/bswap-06.ll

@@ -1,99 +0,0 @@
-; Test 16-bit byteswaps from memory to registers.
-;
-; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
-
-declare i16 @llvm.bswap.i16(i16 %a)
-
-; Check LRVH with no displacement.
-define i16 @f1(i16 *%src) {
-; CHECK-LABEL: f1:
-; CHECK: lrvh %r2, 0(%r2)
-; CHECK: br %r14
-  %a = load i16 , i16 *%src
-  %swapped = call i16 @llvm.bswap.i16(i16 %a)
-  ret i16 %swapped
-}
-
-; Check the high end of the aligned LRVH range.
-define i16 @f2(i16 *%src) {
-; CHECK-LABEL: f2:
-; CHECK: lrvh %r2, 524286(%r2)
-; CHECK: br %r14
-  %ptr = getelementptr i16, i16 *%src, i64 262143
-  %a = load i16 , i16 *%ptr
-  %swapped = call i16 @llvm.bswap.i16(i16 %a)
-  ret i16 %swapped
-}
-
-; Check the next word up, which needs separate address logic.
-; Other sequences besides this one would be OK.
-define i16 @f3(i16 *%src) {
-; CHECK-LABEL: f3:
-; CHECK: agfi %r2, 524288
-; CHECK: lrvh %r2, 0(%r2)
-; CHECK: br %r14
-  %ptr = getelementptr i16, i16 *%src, i64 262144
-  %a = load i16 , i16 *%ptr
-  %swapped = call i16 @llvm.bswap.i16(i16 %a)
-  ret i16 %swapped
-}
-
-; Check the high end of the negative aligned LRVH range.
-define i16 @f4(i16 *%src) {
-; CHECK-LABEL: f4:
-; CHECK: lrvh %r2, -2(%r2)
-; CHECK: br %r14
-  %ptr = getelementptr i16, i16 *%src, i64 -1
-  %a = load i16 , i16 *%ptr
-  %swapped = call i16 @llvm.bswap.i16(i16 %a)
-  ret i16 %swapped
-}
-
-; Check the low end of the LRVH range.
-define i16 @f5(i16 *%src) {
-; CHECK-LABEL: f5:
-; CHECK: lrvh %r2, -524288(%r2)
-; CHECK: br %r14
-  %ptr = getelementptr i16, i16 *%src, i64 -262144
-  %a = load i16 , i16 *%ptr
-  %swapped = call i16 @llvm.bswap.i16(i16 %a)
-  ret i16 %swapped
-}
-
-; Check the next word down, which needs separate address logic.
-; Other sequences besides this one would be OK.
-define i16 @f6(i16 *%src) {
-; CHECK-LABEL: f6:
-; CHECK: agfi %r2, -524290
-; CHECK: lrvh %r2, 0(%r2)
-; CHECK: br %r14
-  %ptr = getelementptr i16, i16 *%src, i64 -262145
-  %a = load i16 , i16 *%ptr
-  %swapped = call i16 @llvm.bswap.i16(i16 %a)
-  ret i16 %swapped
-}
-
-; Check that LRVH allows an index.
-define i16 @f7(i64 %src, i64 %index) {
-; CHECK-LABEL: f7:
-; CHECK: lrvh %r2, 524287({{%r3,%r2|%r2,%r3}})
-; CHECK: br %r14
-  %add1 = add i64 %src, %index
-  %add2 = add i64 %add1, 524287
-  %ptr = inttoptr i64 %add2 to i16 *
-  %a = load i16 , i16 *%ptr
-  %swapped = call i16 @llvm.bswap.i16(i16 %a)
-  ret i16 %swapped
-}
-
-; Check that volatile accesses do not use LRVH, which might access the
-; storage multple times.
-define i16 @f8(i16 *%src) {
-; CHECK-LABEL: f8:
-; CHECK: lh [[REG:%r[0-5]]], 0(%r2)
-; CHECK: lrvr %r2, [[REG]]
-; CHECK: br %r14
-  %a = load volatile i16 , i16 *%src
-  %swapped = call i16 @llvm.bswap.i16(i16 %a)
-  ret i16 %swapped
-}