llvm-6502/test/Transforms/GVN/edge.ll
Stephen Lin 15bfd6d3ad Catch more CHECK that can be converted to CHECK-LABEL in Transforms for easier debugging. No functionality change.
This conversion was done with the following bash script:

  find test/Transforms -name "*.ll" | \
  while read NAME; do
    echo "$NAME"
    if ! grep -q "^; *RUN: *llc" $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/;\(.*\)\([A-Za-z0-9_]*\):\( *\)define\([^@]*\)@$FUNC\([( ]*\)\$/;\1\2-LABEL:\3define\4@$FUNC(/g" $TEMP
      done
      mv $TEMP $NAME
    fi
  done


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186269 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-14 01:50:49 +00:00

61 lines
1.1 KiB
LLVM

; RUN: opt -gvn -S < %s | FileCheck %s
define i32 @f1(i32 %x) {
; CHECK-LABEL: define i32 @f1(
bb0:
%cmp = icmp eq i32 %x, 0
br i1 %cmp, label %bb2, label %bb1
bb1:
br label %bb2
bb2:
%cond = phi i32 [ %x, %bb0 ], [ 0, %bb1 ]
%foo = add i32 %cond, %x
ret i32 %foo
; CHECK: bb2:
; CHECK: ret i32 %x
}
define i32 @f2(i32 %x) {
; CHECK-LABEL: define i32 @f2(
bb0:
%cmp = icmp ne i32 %x, 0
br i1 %cmp, label %bb1, label %bb2
bb1:
br label %bb2
bb2:
%cond = phi i32 [ %x, %bb0 ], [ 0, %bb1 ]
%foo = add i32 %cond, %x
ret i32 %foo
; CHECK: bb2:
; CHECK: ret i32 %x
}
define i32 @f3(i32 %x) {
; CHECK-LABEL: define i32 @f3(
bb0:
switch i32 %x, label %bb1 [ i32 0, label %bb2]
bb1:
br label %bb2
bb2:
%cond = phi i32 [ %x, %bb0 ], [ 0, %bb1 ]
%foo = add i32 %cond, %x
ret i32 %foo
; CHECK: bb2:
; CHECK: ret i32 %x
}
declare void @g(i1)
define void @f4(i8 * %x) {
; CHECK-LABEL: define void @f4(
bb0:
%y = icmp eq i8* null, %x
br i1 %y, label %bb2, label %bb1
bb1:
br label %bb2
bb2:
%zed = icmp eq i8* null, %x
call void @g(i1 %zed)
; CHECK: call void @g(i1 %y)
ret void
}