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llvm-project/llvm/test/Transforms/LoopVectorize/12-12-11-if-conv.ll

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Remove the -licm pass from the loop vectorizer test because the loop vectorizer does it now. llvm-svn: 171930
2013-01-09 09:20:59 +08:00
; RUN: opt < %s -loop-vectorize -force-vector-unroll=1 -force-vector-width=4 -enable-if-conversion -dce -instcombine -S | FileCheck %s
PR14574. Fix a bug in the code that calculates the mask the converted PHIs in if-conversion. llvm-svn: 169916
2012-12-12 05:30:14 +08:00
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"
target triple = "x86_64-apple-macosx10.8.0"
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 llvm-svn: 186268
2013-07-14 09:42:54 +08:00
;CHECK-LABEL: @foo(
PR14574. Fix a bug in the code that calculates the mask the converted PHIs in if-conversion. llvm-svn: 169916
2012-12-12 05:30:14 +08:00
;CHECK: icmp eq <4 x i32>
;CHECK: select <4 x i1>
;CHECK: ret i32
define i32 @foo(i32 %x, i32 %t, i32* nocapture %A) nounwind uwtable ssp {
entry:
%cmp10 = icmp sgt i32 %x, 0
br i1 %cmp10, label %for.body, label %for.end
for.body: ; preds = %entry, %if.end
%indvars.iv = phi i64 [ %indvars.iv.next, %if.end ], [ 0, %entry ]
%arrayidx = getelementptr inbounds i32* %A, i64 %indvars.iv
TBAA: remove !tbaa from testing cases if not used. This will make it easier to turn on struct-path aware TBAA since the metadata format will change. llvm-svn: 180796
2013-05-01 01:52:57 +08:00
%0 = load i32* %arrayidx, align 4
PR14574. Fix a bug in the code that calculates the mask the converted PHIs in if-conversion. llvm-svn: 169916
2012-12-12 05:30:14 +08:00
%tobool = icmp eq i32 %0, 0
br i1 %tobool, label %if.end, label %if.then
if.then: ; preds = %for.body
%1 = add nsw i64 %indvars.iv, 45
%2 = trunc i64 %indvars.iv to i32
%mul = mul nsw i32 %2, %t
%3 = trunc i64 %1 to i32
%add1 = add nsw i32 %3, %mul
br label %if.end
if.end: ; preds = %for.body, %if.then
%z.0 = phi i32 [ %add1, %if.then ], [ 9, %for.body ]
TBAA: remove !tbaa from testing cases if not used. This will make it easier to turn on struct-path aware TBAA since the metadata format will change. llvm-svn: 180796
2013-05-01 01:52:57 +08:00
store i32 %z.0, i32* %arrayidx, align 4
Reapply 184685 after the SetVector iteration order fix. This should hopefully have fixed the stage2/stage3 miscompare on the dragonegg testers. "LoopVectorize: Use the dependence test utility class We now no longer need alias analysis - the cases that alias analysis would handle are now handled as accesses with a large dependence distance. We can now vectorize loops with simple constant dependence distances. for (i = 8; i < 256; ++i) { a[i] = a[i+4] * a[i+8]; } for (i = 8; i < 256; ++i) { a[i] = a[i-4] * a[i-8]; } We would be able to vectorize about 200 more loops (in many cases the cost model instructs us no to) in the test suite now. Results on x86-64 are a wash. I have seen one degradation in ammp. Interestingly, the function in which we now vectorize a loop is never executed so we probably see some instruction cache effects. There is a 2% improvement in h264ref. There is one or the other TSCV loop kernel that speeds up. radar://13681598" llvm-svn: 184724
2013-06-24 20:09:15 +08:00
%indvars.iv.next = add nsw i64 %indvars.iv, 1
PR14574. Fix a bug in the code that calculates the mask the converted PHIs in if-conversion. llvm-svn: 169916
2012-12-12 05:30:14 +08:00
%lftr.wideiv = trunc i64 %indvars.iv.next to i32
%exitcond = icmp eq i32 %lftr.wideiv, %x
br i1 %exitcond, label %for.end, label %for.body
for.end: ; preds = %if.end, %entry
ret i32 undef
}