llvm-6502/test/CodeGen/SystemZ/fp-sub-01.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

120 lines
3.1 KiB
LLVM

; Test 32-bit floating-point subtraction.
;
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
declare float @foo()
; Check register subtraction.
define float @f1(float %f1, float %f2) {
; CHECK-LABEL: f1:
; CHECK: sebr %f0, %f2
; CHECK: br %r14
%res = fsub float %f1, %f2
ret float %res
}
; Check the low end of the SEB range.
define float @f2(float %f1, float *%ptr) {
; CHECK-LABEL: f2:
; CHECK: seb %f0, 0(%r2)
; CHECK: br %r14
%f2 = load float *%ptr
%res = fsub float %f1, %f2
ret float %res
}
; Check the high end of the aligned SEB range.
define float @f3(float %f1, float *%base) {
; CHECK-LABEL: f3:
; CHECK: seb %f0, 4092(%r2)
; CHECK: br %r14
%ptr = getelementptr float *%base, i64 1023
%f2 = load float *%ptr
%res = fsub float %f1, %f2
ret float %res
}
; Check the next word up, which needs separate address logic.
; Other sequences besides this one would be OK.
define float @f4(float %f1, float *%base) {
; CHECK-LABEL: f4:
; CHECK: aghi %r2, 4096
; CHECK: seb %f0, 0(%r2)
; CHECK: br %r14
%ptr = getelementptr float *%base, i64 1024
%f2 = load float *%ptr
%res = fsub float %f1, %f2
ret float %res
}
; Check negative displacements, which also need separate address logic.
define float @f5(float %f1, float *%base) {
; CHECK-LABEL: f5:
; CHECK: aghi %r2, -4
; CHECK: seb %f0, 0(%r2)
; CHECK: br %r14
%ptr = getelementptr float *%base, i64 -1
%f2 = load float *%ptr
%res = fsub float %f1, %f2
ret float %res
}
; Check that SEB allows indices.
define float @f6(float %f1, float *%base, i64 %index) {
; CHECK-LABEL: f6:
; CHECK: sllg %r1, %r3, 2
; CHECK: seb %f0, 400(%r1,%r2)
; CHECK: br %r14
%ptr1 = getelementptr float *%base, i64 %index
%ptr2 = getelementptr float *%ptr1, i64 100
%f2 = load float *%ptr2
%res = fsub float %f1, %f2
ret float %res
}
; Check that subtractions of spilled values can use SEB rather than SEBR.
define float @f7(float *%ptr0) {
; CHECK-LABEL: f7:
; CHECK: brasl %r14, foo@PLT
; CHECK: seb %f0, 16{{[04]}}(%r15)
; CHECK: br %r14
%ptr1 = getelementptr float *%ptr0, i64 2
%ptr2 = getelementptr float *%ptr0, i64 4
%ptr3 = getelementptr float *%ptr0, i64 6
%ptr4 = getelementptr float *%ptr0, i64 8
%ptr5 = getelementptr float *%ptr0, i64 10
%ptr6 = getelementptr float *%ptr0, i64 12
%ptr7 = getelementptr float *%ptr0, i64 14
%ptr8 = getelementptr float *%ptr0, i64 16
%ptr9 = getelementptr float *%ptr0, i64 18
%ptr10 = getelementptr float *%ptr0, i64 20
%val0 = load float *%ptr0
%val1 = load float *%ptr1
%val2 = load float *%ptr2
%val3 = load float *%ptr3
%val4 = load float *%ptr4
%val5 = load float *%ptr5
%val6 = load float *%ptr6
%val7 = load float *%ptr7
%val8 = load float *%ptr8
%val9 = load float *%ptr9
%val10 = load float *%ptr10
%ret = call float @foo()
%sub0 = fsub float %ret, %val0
%sub1 = fsub float %sub0, %val1
%sub2 = fsub float %sub1, %val2
%sub3 = fsub float %sub2, %val3
%sub4 = fsub float %sub3, %val4
%sub5 = fsub float %sub4, %val5
%sub6 = fsub float %sub5, %val6
%sub7 = fsub float %sub6, %val7
%sub8 = fsub float %sub7, %val8
%sub9 = fsub float %sub8, %val9
%sub10 = fsub float %sub9, %val10
ret float %sub10
}