mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-31 16:02:52 +01:00
cf082ae903
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
llvm-svn: 186268
234 lines
6.6 KiB
LLVM
234 lines
6.6 KiB
LLVM
; RUN: opt < %s -indvars -S | FileCheck %s
|
|
;
|
|
; Make sure that indvars can perform LFTR without a canonical IV.
|
|
|
|
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"
|
|
|
|
; Perform LFTR using the original pointer-type IV.
|
|
|
|
; for(char* p = base; p < base + n; ++p) {
|
|
; *p = p-base;
|
|
; }
|
|
define void @ptriv(i8* %base, i32 %n) nounwind {
|
|
entry:
|
|
%idx.ext = sext i32 %n to i64
|
|
%add.ptr = getelementptr inbounds i8* %base, i64 %idx.ext
|
|
%cmp1 = icmp ult i8* %base, %add.ptr
|
|
br i1 %cmp1, label %for.body, label %for.end
|
|
|
|
; CHECK: for.body:
|
|
; CHECK: phi i8*
|
|
; CHECK-NOT: phi
|
|
; CHECK-NOT: add
|
|
; CHECK: icmp ne i8*
|
|
; CHECK: br i1
|
|
for.body:
|
|
%p.02 = phi i8* [ %base, %entry ], [ %incdec.ptr, %for.body ]
|
|
; cruft to make the IV useful
|
|
%sub.ptr.lhs.cast = ptrtoint i8* %p.02 to i64
|
|
%sub.ptr.rhs.cast = ptrtoint i8* %base to i64
|
|
%sub.ptr.sub = sub i64 %sub.ptr.lhs.cast, %sub.ptr.rhs.cast
|
|
%conv = trunc i64 %sub.ptr.sub to i8
|
|
store i8 %conv, i8* %p.02
|
|
%incdec.ptr = getelementptr inbounds i8* %p.02, i32 1
|
|
%cmp = icmp ult i8* %incdec.ptr, %add.ptr
|
|
br i1 %cmp, label %for.body, label %for.end
|
|
|
|
for.end:
|
|
ret void
|
|
}
|
|
|
|
; It would be nice if SCEV and any loop analysis could assume that
|
|
; preheaders exist. Unfortunately it is not always the case. This test
|
|
; checks that SCEVExpander can handle an outer loop that has not yet
|
|
; been simplified. As a result, the inner loop's exit test will not be
|
|
; rewritten.
|
|
define void @expandOuterRecurrence(i32 %arg) nounwind {
|
|
entry:
|
|
%sub1 = sub nsw i32 %arg, 1
|
|
%cmp1 = icmp slt i32 0, %sub1
|
|
br i1 %cmp1, label %outer, label %exit
|
|
|
|
outer:
|
|
%i = phi i32 [ 0, %entry ], [ %i.inc, %outer.inc ]
|
|
%sub2 = sub nsw i32 %arg, %i
|
|
%sub3 = sub nsw i32 %sub2, 1
|
|
%cmp2 = icmp slt i32 0, %sub3
|
|
br i1 %cmp2, label %inner.ph, label %outer.inc
|
|
|
|
inner.ph:
|
|
br label %inner
|
|
|
|
; CHECK: inner:
|
|
; CHECK: icmp slt
|
|
; CHECK: br i1
|
|
inner:
|
|
%j = phi i32 [ 0, %inner.ph ], [ %j.inc, %inner ]
|
|
%j.inc = add nsw i32 %j, 1
|
|
%cmp3 = icmp slt i32 %j.inc, %sub3
|
|
br i1 %cmp3, label %inner, label %outer.inc
|
|
|
|
; CHECK: outer.inc:
|
|
; CHECK: icmp ne
|
|
; CHECK: br i1
|
|
outer.inc:
|
|
%i.inc = add nsw i32 %i, 1
|
|
%cmp4 = icmp slt i32 %i.inc, %sub1
|
|
br i1 %cmp4, label %outer, label %exit
|
|
|
|
exit:
|
|
ret void
|
|
}
|
|
|
|
; Force SCEVExpander to look for an existing well-formed phi.
|
|
; Perform LFTR without generating extra preheader code.
|
|
define void @guardedloop([0 x double]* %matrix, [0 x double]* %vector,
|
|
i32 %irow, i32 %ilead) nounwind {
|
|
; CHECK: entry:
|
|
; CHECK-NOT: zext
|
|
; CHECK-NOT: add
|
|
; CHECK: loop:
|
|
; CHECK: phi i64
|
|
; CHECK: phi i64
|
|
; CHECK-NOT: phi
|
|
; CHECK: icmp ne
|
|
; CHECK: br i1
|
|
entry:
|
|
%cmp = icmp slt i32 1, %irow
|
|
br i1 %cmp, label %loop, label %return
|
|
|
|
loop:
|
|
%rowidx = phi i32 [ 0, %entry ], [ %row.inc, %loop ]
|
|
%i = phi i32 [ 0, %entry ], [ %i.inc, %loop ]
|
|
%diagidx = add nsw i32 %rowidx, %i
|
|
%diagidxw = sext i32 %diagidx to i64
|
|
%matrixp = getelementptr inbounds [0 x double]* %matrix, i32 0, i64 %diagidxw
|
|
%v1 = load double* %matrixp
|
|
%iw = sext i32 %i to i64
|
|
%vectorp = getelementptr inbounds [0 x double]* %vector, i32 0, i64 %iw
|
|
%v2 = load double* %vectorp
|
|
%row.inc = add nsw i32 %rowidx, %ilead
|
|
%i.inc = add nsw i32 %i, 1
|
|
%cmp196 = icmp slt i32 %i.inc, %irow
|
|
br i1 %cmp196, label %loop, label %return
|
|
|
|
return:
|
|
ret void
|
|
}
|
|
|
|
; Avoid generating extra code to materialize a trip count. Skip LFTR.
|
|
define void @unguardedloop([0 x double]* %matrix, [0 x double]* %vector,
|
|
i32 %irow, i32 %ilead) nounwind {
|
|
entry:
|
|
br label %loop
|
|
|
|
; CHECK: entry:
|
|
; CHECK-NOT: zext
|
|
; CHECK-NOT: add
|
|
; CHECK: loop:
|
|
; CHECK: phi i64
|
|
; CHECK: phi i64
|
|
; CHECK-NOT: phi
|
|
; CHECK: icmp slt
|
|
; CHECK: br i1
|
|
loop:
|
|
%rowidx = phi i32 [ 0, %entry ], [ %row.inc, %loop ]
|
|
%i = phi i32 [ 0, %entry ], [ %i.inc, %loop ]
|
|
%diagidx = add nsw i32 %rowidx, %i
|
|
%diagidxw = sext i32 %diagidx to i64
|
|
%matrixp = getelementptr inbounds [0 x double]* %matrix, i32 0, i64 %diagidxw
|
|
%v1 = load double* %matrixp
|
|
%iw = sext i32 %i to i64
|
|
%vectorp = getelementptr inbounds [0 x double]* %vector, i32 0, i64 %iw
|
|
%v2 = load double* %vectorp
|
|
%row.inc = add nsw i32 %rowidx, %ilead
|
|
%i.inc = add nsw i32 %i, 1
|
|
%cmp196 = icmp slt i32 %i.inc, %irow
|
|
br i1 %cmp196, label %loop, label %return
|
|
|
|
return:
|
|
ret void
|
|
}
|
|
|
|
; Remove %i which is only used by the exit test.
|
|
; Verify that SCEV can still compute a backedge count from the sign
|
|
; extended %n, used for pointer comparison by LFTR.
|
|
;
|
|
; TODO: Fix for PR13371 currently makes this impossible. See
|
|
; IndVarSimplify.cpp hasConcreteDef(). We may want to change to undef rules.
|
|
define void @geplftr(i8* %base, i32 %x, i32 %y, i32 %n) nounwind {
|
|
entry:
|
|
%x.ext = sext i32 %x to i64
|
|
%add.ptr = getelementptr inbounds i8* %base, i64 %x.ext
|
|
%y.ext = sext i32 %y to i64
|
|
%add.ptr10 = getelementptr inbounds i8* %add.ptr, i64 %y.ext
|
|
%lim = add i32 %x, %n
|
|
%cmp.ph = icmp ult i32 %x, %lim
|
|
br i1 %cmp.ph, label %loop, label %exit
|
|
; CHECK-LABEL: @geplftr(
|
|
; CHECK: loop:
|
|
; CHECK: phi i8*
|
|
; DISABLE-NOT: phi // This check is currently disabled
|
|
; CHECK: getelementptr
|
|
; CHECK: store
|
|
; DISABLE: icmp ne i8* // This check is currently disabled
|
|
; CHECK: br i1
|
|
loop:
|
|
%i = phi i32 [ %x, %entry ], [ %inc, %loop ]
|
|
%aptr = phi i8* [ %add.ptr10, %entry ], [ %incdec.ptr, %loop ]
|
|
%incdec.ptr = getelementptr inbounds i8* %aptr, i32 1
|
|
store i8 3, i8* %aptr
|
|
%inc = add i32 %i, 1
|
|
%cmp = icmp ult i32 %inc, %lim
|
|
br i1 %cmp, label %loop, label %exit
|
|
|
|
exit:
|
|
ret void
|
|
}
|
|
|
|
; Exercise backedge taken count verification with a never-taken loop.
|
|
define void @nevertaken() nounwind uwtable ssp {
|
|
entry:
|
|
br label %loop
|
|
; CHECK-LABEL: @nevertaken(
|
|
; CHECK: loop:
|
|
; CHECK-NOT: phi
|
|
; CHECK-NOT: add
|
|
; CHECK-NOT: icmp
|
|
; CHECK: exit:
|
|
loop:
|
|
%i = phi i32 [ 0, %entry ], [ %inc, %loop ]
|
|
%inc = add nsw i32 %i, 1
|
|
%cmp = icmp sle i32 %inc, 0
|
|
br i1 %cmp, label %loop, label %exit
|
|
|
|
exit:
|
|
ret void
|
|
}
|
|
|
|
; Test LFTR on an IV whose recurrence start is a non-unit pointer type.
|
|
define void @aryptriv([256 x i8]* %base, i32 %n) nounwind {
|
|
entry:
|
|
%ivstart = getelementptr inbounds [256 x i8]* %base, i32 0, i32 0
|
|
%ivend = getelementptr inbounds [256 x i8]* %base, i32 0, i32 %n
|
|
%cmp.ph = icmp ult i8* %ivstart, %ivend
|
|
br i1 %cmp.ph, label %loop, label %exit
|
|
|
|
; CHECK: loop:
|
|
; CHECK: phi i8*
|
|
; CHECK-NOT: phi
|
|
; CHECK: getelementptr
|
|
; CHECK: store
|
|
; CHECK: icmp ne i8*
|
|
; CHECK: br i1
|
|
loop:
|
|
%aptr = phi i8* [ %ivstart, %entry ], [ %incdec.ptr, %loop ]
|
|
%incdec.ptr = getelementptr inbounds i8* %aptr, i32 1
|
|
store i8 3, i8* %aptr
|
|
%cmp = icmp ult i8* %incdec.ptr, %ivend
|
|
br i1 %cmp, label %loop, label %exit
|
|
|
|
exit:
|
|
ret void
|
|
}
|