| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ;; Ensure we don't change after value numbering by accidentally deleting the wrong expression. |
| ; RUN: opt -newgvn -S %s | FileCheck %s |
| define void @fn1() local_unnamed_addr #0 { |
| ; CHECK-LABEL: @fn1( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: br label [[FOR_COND_PREHEADER:%.*]] |
| ; CHECK: while.cond: |
| ; CHECK-NEXT: br label [[FOR_COND_PREHEADER]] |
| ; CHECK: for.cond.preheader: |
| ; CHECK-NEXT: [[H_031:%.*]] = phi i32 [ 5, [[ENTRY:%.*]] ], [ [[H_127:%.*]], [[WHILE_COND:%.*]] ] |
| ; CHECK-NEXT: br label [[FOR_BODY:%.*]] |
| ; CHECK: for.body: |
| ; CHECK-NEXT: [[H_128:%.*]] = phi i32 [ [[H_031]], [[FOR_COND_PREHEADER]] ], [ [[H_2:%.*]], [[FOR_INC:%.*]] ] |
| ; CHECK-NEXT: br label [[IF_THEN:%.*]] |
| ; CHECK: if.then: |
| ; CHECK-NEXT: br i1 false, label [[L_LOOPEXIT:%.*]], label [[IF_END:%.*]] |
| ; CHECK: if.end: |
| ; CHECK-NEXT: br i1 undef, label [[FOR_INC]], label [[IF_END9:%.*]] |
| ; CHECK: if.end9: |
| ; CHECK-NEXT: br label [[FOR_INC]] |
| ; CHECK: for.inc: |
| ; CHECK-NEXT: [[H_2]] = phi i32 [ [[H_128]], [[IF_END]] ], [ 0, [[IF_END9]] ] |
| ; CHECK-NEXT: br i1 undef, label [[WHILE_COND10_LOOPEXIT:%.*]], label [[FOR_BODY]] |
| ; CHECK: while.cond10.loopexit: |
| ; CHECK-NEXT: br label [[WHILE_COND10:%.*]] |
| ; CHECK: while.cond10: |
| ; CHECK-NEXT: [[H_127]] = phi i32 [ [[H_126:%.*]], [[IF_END18:%.*]] ], [ [[H_125:%.*]], [[L:%.*]] ], [ [[H_2]], [[WHILE_COND10_LOOPEXIT]] ] |
| ; CHECK-NEXT: br i1 undef, label [[WHILE_COND]], label [[WHILE_BODY12:%.*]] |
| ; CHECK: while.body12: |
| ; CHECK-NEXT: br i1 undef, label [[IF_END18]], label [[L]] |
| ; CHECK: L.loopexit: |
| ; CHECK-NEXT: store i8 undef, i8* null |
| ; CHECK-NEXT: br label [[L]] |
| ; CHECK: L: |
| ; CHECK-NEXT: [[H_125]] = phi i32 [ [[H_127]], [[WHILE_BODY12]] ], [ undef, [[L_LOOPEXIT]] ] |
| ; CHECK-NEXT: br i1 undef, label [[WHILE_COND10]], label [[IF_END18]] |
| ; CHECK: if.end18: |
| ; CHECK-NEXT: [[H_126]] = phi i32 [ [[H_125]], [[L]] ], [ [[H_127]], [[WHILE_BODY12]] ] |
| ; CHECK-NEXT: br label [[WHILE_COND10]] |
| ; |
| entry: |
| br label %for.cond.preheader |
| |
| while.cond: ; preds = %while.cond10 |
| br label %for.cond.preheader |
| |
| for.cond.preheader: ; preds = %while.cond, %entry |
| %h.031 = phi i32 [ 5, %entry ], [ %h.127, %while.cond ] |
| br label %for.body |
| |
| for.body: ; preds = %for.inc, %for.cond.preheader |
| %h.128 = phi i32 [ %h.031, %for.cond.preheader ], [ %h.2, %for.inc ] |
| br label %if.then |
| |
| if.then: ; preds = %for.body |
| br i1 false, label %L.loopexit, label %if.end |
| |
| if.end: ; preds = %if.then |
| br i1 undef, label %for.inc, label %if.end9 |
| |
| if.end9: ; preds = %if.end |
| br label %for.inc |
| |
| for.inc: ; preds = %if.end9, %if.end |
| %h.2 = phi i32 [ %h.128, %if.end ], [ 0, %if.end9 ] |
| br i1 undef, label %while.cond10.loopexit, label %for.body |
| |
| while.cond10.loopexit: ; preds = %for.inc |
| %h.2.lcssa = phi i32 [ %h.2, %for.inc ] |
| br label %while.cond10 |
| |
| while.cond10: ; preds = %if.end18, %L, %while.cond10.loopexit |
| %h.127 = phi i32 [ %h.126, %if.end18 ], [ %h.125, %L ], [ %h.2.lcssa, %while.cond10.loopexit ] |
| br i1 undef, label %while.cond, label %while.body12 |
| |
| while.body12: ; preds = %while.cond10 |
| br i1 undef, label %if.end18, label %L |
| |
| L.loopexit: ; preds = %if.then |
| br label %L |
| |
| L: ; preds = %L.loopexit, %while.body12 |
| %h.125 = phi i32 [ %h.127, %while.body12 ], [ undef, %L.loopexit ] |
| br i1 undef, label %while.cond10, label %if.end18 |
| |
| if.end18: ; preds = %L, %while.body12 |
| %h.126 = phi i32 [ %h.125, %L ], [ %h.127, %while.body12 ] |
| br label %while.cond10 |
| } |
| |
| |
| define void @hoge() local_unnamed_addr #0 { |
| ; CHECK-LABEL: @hoge( |
| ; CHECK-NEXT: bb: |
| ; CHECK-NEXT: br label [[BB1:%.*]] |
| ; CHECK: bb1: |
| ; CHECK-NEXT: [[TMP:%.*]] = phi i64 [ 0, [[BB:%.*]] ], [ [[TMP2:%.*]], [[BB1]] ] |
| ; CHECK-NEXT: [[TMP2]] = add nuw nsw i64 [[TMP]], 1 |
| ; CHECK-NEXT: br label [[BB1]] |
| ; |
| bb: |
| br label %bb1 |
| |
| bb1: ; preds = %bb1, %bb |
| %tmp = phi i64 [ 0, %bb ], [ %tmp2, %bb1 ] |
| %tmp2 = add nuw nsw i64 %tmp, 1 |
| br label %bb1 |
| } |
| |
| attributes #0 = { nounwind uwtable "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="none" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" } |
| |
| |
| define void @a() { |
| ; CHECK-LABEL: @a( |
| ; CHECK-NEXT: b: |
| ; CHECK-NEXT: store i8* null, i8** null |
| ; CHECK-NEXT: br label [[D:%.*]] |
| ; CHECK: d: |
| ; CHECK-NEXT: [[I:%.*]] = phi i8* [ null, [[B:%.*]] ], [ [[E:%.*]], [[F:%.*]] ] |
| ; CHECK-NEXT: br i1 undef, label [[F]], label [[G:%.*]] |
| ; CHECK: g: |
| ; CHECK-NEXT: store i8* [[I]], i8** null |
| ; CHECK-NEXT: unreachable |
| ; CHECK: f: |
| ; CHECK-NEXT: [[E]] = getelementptr i8, i8* [[I]], i64 1 |
| ; CHECK-NEXT: br label [[D]] |
| ; |
| b: |
| store i8* null, i8** null |
| br label %d |
| |
| d: ; preds = %f, %b |
| %i = phi i8* [ null, %b ], [ %e, %f ] |
| br i1 undef, label %f, label %g |
| |
| g: ; preds = %d |
| %h = phi i8* [ %i, %d ] |
| store i8* %h, i8** null |
| unreachable |
| |
| f: ; preds = %d |
| %e = getelementptr i8, i8* %i, i64 1 |
| br label %d |
| } |
| |
