llvm-6502/test/Transforms/LoopVectorize/if-conversion-nest.ll
Stephen Lin 39f4e8d9cc Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.
This update 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/;\(.*\)\([A-Za-z0-9_]*\):\( *\)@$FUNC\([( ]*\)\$/;\1\2-LABEL:\3@$FUNC(/g" $TEMP
      done
      mv $TEMP $NAME
    fi
  done


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186268 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-14 01:42:54 +00:00

49 lines
1.6 KiB
LLVM

; RUN: opt < %s -loop-vectorize -force-vector-unroll=1 -force-vector-width=4 -enable-if-conversion -dce -instcombine -S | FileCheck %s
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
;CHECK-LABEL: @foo(
;CHECK: icmp sgt
;CHECK: icmp sgt
;CHECK: icmp slt
;CHECK: select <4 x i1>
;CHECK: %[[P1:.*]] = select <4 x i1>
;CHECK: xor <4 x i1>
;CHECK: and <4 x i1>
;CHECK: select <4 x i1> %{{.*}}, <4 x i32> %{{.*}}, <4 x i32> %[[P1]]
;CHECK: ret
define i32 @foo(i32* nocapture %A, i32* nocapture %B, i32 %n) {
entry:
%cmp26 = icmp sgt i32 %n, 0
br i1 %cmp26, label %for.body, label %for.end
for.body:
%indvars.iv = phi i64 [ %indvars.iv.next, %if.end14 ], [ 0, %entry ]
%arrayidx = getelementptr inbounds i32* %A, i64 %indvars.iv
%0 = load i32* %arrayidx, align 4
%arrayidx2 = getelementptr inbounds i32* %B, i64 %indvars.iv
%1 = load i32* %arrayidx2, align 4
%cmp3 = icmp sgt i32 %0, %1
br i1 %cmp3, label %if.then, label %if.end14
if.then:
%cmp6 = icmp sgt i32 %0, 19
br i1 %cmp6, label %if.end14, label %if.else
if.else:
%cmp10 = icmp slt i32 %1, 4
%. = select i1 %cmp10, i32 4, i32 5
br label %if.end14
if.end14:
%x.0 = phi i32 [ 9, %for.body ], [ 3, %if.then ], [ %., %if.else ] ; <------------- A PHI with 3 entries that we can still vectorize.
store i32 %x.0, i32* %arrayidx, align 4
%indvars.iv.next = add i64 %indvars.iv, 1
%lftr.wideiv = trunc i64 %indvars.iv.next to i32
%exitcond = icmp eq i32 %lftr.wideiv, %n
br i1 %exitcond, label %for.end, label %for.body
for.end:
ret i32 undef
}