llvm-6502/test/CodeGen/SystemZ/atomicrmw-sub-03.ll
Stephen Lin 8b2b8a1835 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186280 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-14 06:24:09 +00:00

95 lines
2.2 KiB
LLVM

; Test 32-bit atomic subtractions.
;
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
; Check subtraction of a variable.
define i32 @f1(i32 %dummy, i32 *%src, i32 %b) {
; CHECK-LABEL: f1:
; CHECK: l %r2, 0(%r3)
; CHECK: [[LABEL:\.[^:]*]]:
; CHECK: lr %r0, %r2
; CHECK: sr %r0, %r4
; CHECK: cs %r2, %r0, 0(%r3)
; CHECK: jlh [[LABEL]]
; CHECK: br %r14
%res = atomicrmw sub i32 *%src, i32 %b seq_cst
ret i32 %res
}
; Check subtraction of 1, which can use AHI.
define i32 @f2(i32 %dummy, i32 *%src) {
; CHECK-LABEL: f2:
; CHECK: l %r2, 0(%r3)
; CHECK: [[LABEL:\.[^:]*]]:
; CHECK: lr %r0, %r2
; CHECK: ahi %r0, -1
; CHECK: cs %r2, %r0, 0(%r3)
; CHECK: jlh [[LABEL]]
; CHECK: br %r14
%res = atomicrmw sub i32 *%src, i32 1 seq_cst
ret i32 %res
}
; Check the low end of the AHI range.
define i32 @f3(i32 %dummy, i32 *%src) {
; CHECK-LABEL: f3:
; CHECK: ahi %r0, -32768
; CHECK: br %r14
%res = atomicrmw sub i32 *%src, i32 32768 seq_cst
ret i32 %res
}
; Check the next value down, which must use AFI.
define i32 @f4(i32 %dummy, i32 *%src) {
; CHECK-LABEL: f4:
; CHECK: afi %r0, -32769
; CHECK: br %r14
%res = atomicrmw sub i32 *%src, i32 32769 seq_cst
ret i32 %res
}
; Check the low end of the AFI range.
define i32 @f5(i32 %dummy, i32 *%src) {
; CHECK-LABEL: f5:
; CHECK: afi %r0, -2147483648
; CHECK: br %r14
%res = atomicrmw sub i32 *%src, i32 2147483648 seq_cst
ret i32 %res
}
; Check the next value up, which gets treated as a positive operand.
define i32 @f6(i32 %dummy, i32 *%src) {
; CHECK-LABEL: f6:
; CHECK: afi %r0, 2147483647
; CHECK: br %r14
%res = atomicrmw sub i32 *%src, i32 2147483649 seq_cst
ret i32 %res
}
; Check subtraction of -1, which can use AHI.
define i32 @f7(i32 %dummy, i32 *%src) {
; CHECK-LABEL: f7:
; CHECK: ahi %r0, 1
; CHECK: br %r14
%res = atomicrmw sub i32 *%src, i32 -1 seq_cst
ret i32 %res
}
; Check the high end of the AHI range.
define i32 @f8(i32 %dummy, i32 *%src) {
; CHECK-LABEL: f8:
; CHECK: ahi %r0, 32767
; CHECK: br %r14
%res = atomicrmw sub i32 *%src, i32 -32767 seq_cst
ret i32 %res
}
; Check the next value down, which must use AFI instead.
define i32 @f9(i32 %dummy, i32 *%src) {
; CHECK-LABEL: f9:
; CHECK: afi %r0, 32768
; CHECK: br %r14
%res = atomicrmw sub i32 *%src, i32 -32768 seq_cst
ret i32 %res
}