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llvm-mirror/test/CodeGen/SystemZ/bswap-04.ll
Stephen Lin 7e501cf4c3 Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change and all updated tests passed locally.
This update was done with the following bash script:

  find test/CodeGen -name "*.ll" | \
  while read NAME; do
    echo "$NAME"
    if ! grep -q "^; *RUN: *llc.*debug" $NAME; then
      TEMP=`mktemp -t temp`
      cp $NAME $TEMP
      sed -n "s/^define [^@]*@\([A-Za-z0-9_]*\)(.*$/\1/p" < $NAME | \
      while read FUNC; do
        sed -i '' "s/;\(.*\)\([A-Za-z0-9_-]*\):\( *\)$FUNC: *\$/;\1\2-LABEL:\3$FUNC:/g" $TEMP
      done
      sed -i '' "s/;\(.*\)-LABEL-LABEL:/;\1-LABEL:/" $TEMP
      sed -i '' "s/;\(.*\)-NEXT-LABEL:/;\1-NEXT:/" $TEMP
      sed -i '' "s/;\(.*\)-NOT-LABEL:/;\1-NOT:/" $TEMP
      sed -i '' "s/;\(.*\)-DAG-LABEL:/;\1-DAG:/" $TEMP
      mv $TEMP $NAME
    fi
  done

llvm-svn: 186280
2013-07-14 06:24:09 +00:00

100 lines
2.6 KiB
LLVM

; Test 32-bit byteswaps from registers to memory.
;
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
declare i32 @llvm.bswap.i32(i32 %a)
; Check STRV with no displacement.
define void @f1(i32 *%dst, i32 %a) {
; CHECK-LABEL: f1:
; CHECK: strv %r3, 0(%r2)
; CHECK: br %r14
%swapped = call i32 @llvm.bswap.i32(i32 %a)
store i32 %swapped, i32 *%dst
ret void
}
; Check the high end of the aligned STRV range.
define void @f2(i32 *%dst, i32 %a) {
; CHECK-LABEL: f2:
; CHECK: strv %r3, 524284(%r2)
; CHECK: br %r14
%ptr = getelementptr i32 *%dst, i64 131071
%swapped = call i32 @llvm.bswap.i32(i32 %a)
store i32 %swapped, i32 *%ptr
ret void
}
; Check the next word up, which needs separate address logic.
; Other sequences besides this one would be OK.
define void @f3(i32 *%dst, i32 %a) {
; CHECK-LABEL: f3:
; CHECK: agfi %r2, 524288
; CHECK: strv %r3, 0(%r2)
; CHECK: br %r14
%ptr = getelementptr i32 *%dst, i64 131072
%swapped = call i32 @llvm.bswap.i32(i32 %a)
store i32 %swapped, i32 *%ptr
ret void
}
; Check the high end of the negative aligned STRV range.
define void @f4(i32 *%dst, i32 %a) {
; CHECK-LABEL: f4:
; CHECK: strv %r3, -4(%r2)
; CHECK: br %r14
%ptr = getelementptr i32 *%dst, i64 -1
%swapped = call i32 @llvm.bswap.i32(i32 %a)
store i32 %swapped, i32 *%ptr
ret void
}
; Check the low end of the STRV range.
define void @f5(i32 *%dst, i32 %a) {
; CHECK-LABEL: f5:
; CHECK: strv %r3, -524288(%r2)
; CHECK: br %r14
%ptr = getelementptr i32 *%dst, i64 -131072
%swapped = call i32 @llvm.bswap.i32(i32 %a)
store i32 %swapped, i32 *%ptr
ret void
}
; Check the next word down, which needs separate address logic.
; Other sequences besides this one would be OK.
define void @f6(i32 *%dst, i32 %a) {
; CHECK-LABEL: f6:
; CHECK: agfi %r2, -524292
; CHECK: strv %r3, 0(%r2)
; CHECK: br %r14
%ptr = getelementptr i32 *%dst, i64 -131073
%swapped = call i32 @llvm.bswap.i32(i32 %a)
store i32 %swapped, i32 *%ptr
ret void
}
; Check that STRV allows an index.
define void @f7(i64 %src, i64 %index, i32 %a) {
; CHECK-LABEL: f7:
; CHECK: strv %r4, 524287({{%r3,%r2|%r2,%r3}})
; CHECK: br %r14
%add1 = add i64 %src, %index
%add2 = add i64 %add1, 524287
%ptr = inttoptr i64 %add2 to i32 *
%swapped = call i32 @llvm.bswap.i32(i32 %a)
store i32 %swapped, i32 *%ptr
ret void
}
; Check that volatile stores do not use STRV, which might access the
; storage multple times.
define void @f8(i32 *%dst, i32 %a) {
; CHECK-LABEL: f8:
; CHECK: lrvr [[REG:%r[0-5]]], %r3
; CHECK: st [[REG]], 0(%r2)
; CHECK: br %r14
%swapped = call i32 @llvm.bswap.i32(i32 %a)
store volatile i32 %swapped, i32 *%dst
ret void
}