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[Tests] Adjust LFTR dead-iv tests to bypass undef cases
As pointed out by Nikita in review, undef and poison need to be handled separately. Since we're no longer expecting any test improvements - just fixes for miscompiles - update the tests to bypass the existing undef check. llvm-svn: 363002
This commit is contained in:
Philip Reames
parent
436239788f
commit
9c75e41aa0
@ -20,7 +20,7 @@ target datalayout = "n8:16:32:64"
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;; IV which dependends on that poison computation in a manner which might
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;; trigger UB would be incorrect.
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;; FIXME: This currently shows a miscompile!
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define void @neg_dynamically_dead_inbounds(i8* %a, i8** %x, i1 %always_false) #0 {
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define void @neg_dynamically_dead_inbounds(i1 %always_false) #0 {
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; CHECK-LABEL: @neg_dynamically_dead_inbounds(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br label [[LOOP:%.*]]
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@ -102,17 +102,15 @@ exit:
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ret void
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}
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define void @dom_store_preinc(i8* %a) #0 {
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define void @dom_store_preinc() #0 {
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; CHECK-LABEL: @dom_store_preinc(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br label [[LOOP:%.*]]
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; CHECK: loop:
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; CHECK-NEXT: [[I_0:%.*]] = phi i8 [ 0, [[ENTRY:%.*]] ], [ [[TMP4:%.*]], [[LOOP]] ]
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; CHECK-NEXT: [[P_0:%.*]] = phi i8* [ [[A:%.*]], [[ENTRY]] ], [ [[TMP3:%.*]], [[LOOP]] ]
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; CHECK-NEXT: [[P_0:%.*]] = phi i8* [ getelementptr inbounds ([240 x i8], [240 x i8]* @data, i64 0, i64 0), [[ENTRY:%.*]] ], [ [[TMP3:%.*]], [[LOOP]] ]
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; CHECK-NEXT: store volatile i8 0, i8* [[P_0]]
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; CHECK-NEXT: [[TMP3]] = getelementptr inbounds i8, i8* [[P_0]], i64 1
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; CHECK-NEXT: [[TMP4]] = add nuw i8 [[I_0]], 1
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; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ne i8 [[TMP4]], -10
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; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ne i8* [[TMP3]], getelementptr (i8, i8* getelementptr inbounds ([240 x i8], [240 x i8]* @data, i64 0, i64 0), i64 246)
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; CHECK-NEXT: br i1 [[EXITCOND]], label [[LOOP]], label [[EXIT:%.*]]
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; CHECK: exit:
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; CHECK-NEXT: ret void
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@ -122,7 +120,7 @@ entry:
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loop:
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%i.0 = phi i8 [ 0, %entry ], [ %tmp4, %loop ]
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%p.0 = phi i8* [ %a, %entry ], [ %tmp3, %loop ]
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%p.0 = phi i8* [ getelementptr inbounds ([240 x i8], [240 x i8]* @data, i64 0, i64 0), %entry ], [ %tmp3, %loop ]
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store volatile i8 0, i8* %p.0
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%tmp3 = getelementptr inbounds i8, i8* %p.0, i64 1
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%tmp4 = add i8 %i.0, 1
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@ -133,17 +131,15 @@ exit:
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ret void
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}
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define void @dom_store_postinc(i8* %a) #0 {
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define void @dom_store_postinc() #0 {
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; CHECK-LABEL: @dom_store_postinc(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br label [[LOOP:%.*]]
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; CHECK: loop:
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; CHECK-NEXT: [[I_0:%.*]] = phi i8 [ 0, [[ENTRY:%.*]] ], [ [[TMP4:%.*]], [[LOOP]] ]
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; CHECK-NEXT: [[P_0:%.*]] = phi i8* [ [[A:%.*]], [[ENTRY]] ], [ [[TMP3:%.*]], [[LOOP]] ]
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; CHECK-NEXT: [[P_0:%.*]] = phi i8* [ getelementptr inbounds ([240 x i8], [240 x i8]* @data, i64 0, i64 0), [[ENTRY:%.*]] ], [ [[TMP3:%.*]], [[LOOP]] ]
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; CHECK-NEXT: [[TMP3]] = getelementptr inbounds i8, i8* [[P_0]], i64 1
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; CHECK-NEXT: store volatile i8 0, i8* [[TMP3]]
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; CHECK-NEXT: [[TMP4]] = add nuw i8 [[I_0]], 1
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; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ne i8 [[TMP4]], -10
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; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ne i8* [[TMP3]], getelementptr (i8, i8* getelementptr inbounds ([240 x i8], [240 x i8]* @data, i64 0, i64 0), i64 246)
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; CHECK-NEXT: br i1 [[EXITCOND]], label [[LOOP]], label [[EXIT:%.*]]
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; CHECK: exit:
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; CHECK-NEXT: ret void
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@ -153,7 +149,7 @@ entry:
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loop:
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%i.0 = phi i8 [ 0, %entry ], [ %tmp4, %loop ]
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%p.0 = phi i8* [ %a, %entry ], [ %tmp3, %loop ]
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%p.0 = phi i8* [ getelementptr inbounds ([240 x i8], [240 x i8]* @data, i64 0, i64 0), %entry ], [ %tmp3, %loop ]
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%tmp3 = getelementptr inbounds i8, i8* %p.0, i64 1
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store volatile i8 0, i8* %tmp3
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%tmp4 = add i8 %i.0, 1
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@ -164,17 +160,15 @@ exit:
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ret void
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}
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define i8 @dom_load(i8* %a) #0 {
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define i8 @dom_load() #0 {
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; CHECK-LABEL: @dom_load(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br label [[LOOP:%.*]]
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; CHECK: loop:
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; CHECK-NEXT: [[I_0:%.*]] = phi i8 [ 0, [[ENTRY:%.*]] ], [ [[TMP4:%.*]], [[LOOP]] ]
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; CHECK-NEXT: [[P_0:%.*]] = phi i8* [ [[A:%.*]], [[ENTRY]] ], [ [[TMP3:%.*]], [[LOOP]] ]
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; CHECK-NEXT: [[P_0:%.*]] = phi i8* [ getelementptr inbounds ([240 x i8], [240 x i8]* @data, i64 0, i64 0), [[ENTRY:%.*]] ], [ [[TMP3:%.*]], [[LOOP]] ]
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; CHECK-NEXT: [[TMP3]] = getelementptr inbounds i8, i8* [[P_0]], i64 1
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; CHECK-NEXT: [[V:%.*]] = load i8, i8* [[TMP3]]
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; CHECK-NEXT: [[TMP4]] = add nuw i8 [[I_0]], 1
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; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ne i8 [[TMP4]], -10
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; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ne i8* [[TMP3]], getelementptr (i8, i8* getelementptr inbounds ([240 x i8], [240 x i8]* @data, i64 0, i64 0), i64 246)
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; CHECK-NEXT: br i1 [[EXITCOND]], label [[LOOP]], label [[EXIT:%.*]]
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; CHECK: exit:
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; CHECK-NEXT: [[V_LCSSA:%.*]] = phi i8 [ [[V]], [[LOOP]] ]
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@ -185,7 +179,7 @@ entry:
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loop:
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%i.0 = phi i8 [ 0, %entry ], [ %tmp4, %loop ]
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%p.0 = phi i8* [ %a, %entry ], [ %tmp3, %loop ]
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%p.0 = phi i8* [ getelementptr inbounds ([240 x i8], [240 x i8]* @data, i64 0, i64 0), %entry ], [ %tmp3, %loop ]
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%tmp3 = getelementptr inbounds i8, i8* %p.0, i64 1
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%v = load i8, i8* %tmp3
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%tmp4 = add i8 %i.0, 1
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@ -196,13 +190,13 @@ exit:
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ret i8 %v
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}
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define i64 @dom_div(i64 %a) #0 {
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define i64 @dom_div(i64 %input) #0 {
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; CHECK-LABEL: @dom_div(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br label [[LOOP:%.*]]
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; CHECK: loop:
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; CHECK-NEXT: [[I_0:%.*]] = phi i8 [ 0, [[ENTRY:%.*]] ], [ [[TMP4:%.*]], [[LOOP]] ]
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; CHECK-NEXT: [[I_1:%.*]] = phi i64 [ [[A:%.*]], [[ENTRY]] ], [ [[TMP3:%.*]], [[LOOP]] ]
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; CHECK-NEXT: [[I_1:%.*]] = phi i64 [ [[INPUT:%.*]], [[ENTRY]] ], [ [[TMP3:%.*]], [[LOOP]] ]
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; CHECK-NEXT: [[TMP3]] = add nuw nsw i64 [[I_1]], 1
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; CHECK-NEXT: [[V:%.*]] = udiv i64 5, [[TMP3]]
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; CHECK-NEXT: [[TMP4]] = add nuw i8 [[I_0]], 1
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@ -217,7 +211,7 @@ entry:
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loop:
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%i.0 = phi i8 [ 0, %entry ], [ %tmp4, %loop ]
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%i.1 = phi i64 [ %a, %entry ], [ %tmp3, %loop ]
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%i.1 = phi i64 [ %input, %entry ], [ %tmp3, %loop ]
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%tmp3 = add nsw nuw i64 %i.1, 1
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%v = udiv i64 5, %tmp3
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%tmp4 = add i8 %i.0, 1
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@ -230,7 +224,7 @@ exit:
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; For integer IVs, we handle this trigger case by stripping the problematic
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; flags which removes the potential introduction of UB.
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define void @neg_dead_int_iv(i64 %a) #0 {
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define void @neg_dead_int_iv() #0 {
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; CHECK-LABEL: @neg_dead_int_iv(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br label [[LOOP:%.*]]
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