Imported Upstream version 5.18.0.207

Former-commit-id: 3b152f462918d427ce18620a2cbe4f8b79650449

external/llvm/test/Transforms/LoopDeletion/update-scev.ll

@@ -1,56 +0,0 @@
-; RUN: opt -S -analyze -scalar-evolution -loop-deletion -scalar-evolution < %s | FileCheck %s --check-prefix=SCEV-EXPRS
-; RUN: opt -S -loop-deletion < %s | FileCheck %s --check-prefix=IR-AFTER-TRANSFORM
-; RUN: opt -S -indvars -loop-deletion -indvars < %s | FileCheck %s --check-prefix=ORIGINAL-CRASH
-
-; Checking for a crash.  Loop-deletion would change the loop
-; disposition of an instruction, but not update SCEV.
-
-target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
-target triple = "x86_64-apple-macosx10.11.0"
-
-define void @pr27570() {
-; IR-AFTER-TRANSFORM-LABEL: @pr27570(
-; ORIGINAL-CRASH: @pr27570(
-entry:
-  br label %for.cond
-
-for.cond:                                         ; preds = %for.cond14, %entry
-  %f.0 = phi i32 [ 20, %entry ], [ 0, %for.cond14 ]
-  br label %for.body
-
-for.body:                                         ; preds = %for.inc11, %for.cond
-; IR-AFTER-TRANSFORM: for.body:
-; IR-AFTER-TRANSFORM: %cmp = icmp eq i32 %val, -1
-; IR-AFTER-TRANSFORM: %conv7 = zext i1 %cmp to i32
-; IR-AFTER-TRANSFORM: for.body6:
-
-; SCEV-EXPRS:  %conv7 = zext i1 %cmp to i32
-; SCEV-EXPRS:  %conv7 = zext i1 %cmp to i32
-; SCEV-EXPRS-NEXT:  -->  {{.*}} LoopDispositions: { %for.body: Variant, %for.cond: Variant, %for.body6: Invariant }
-  %val = phi i32 [ -20, %for.cond ], [ %inc12, %for.inc11 ]
-  %g.040 = phi i32 [ -20, %for.cond ], [ %and.lcssa, %for.inc11 ]
-  br label %for.body6
-
-for.body6:                                        ; preds = %for.body6, %for.body
-  %h.039 = phi i32 [ 1, %for.body ], [ %inc, %for.body6 ]
-  %g.138 = phi i32 [ %g.040, %for.body ], [ %and, %for.body6 ]
-  %cmp = icmp eq i32 %val, -1
-  %conv7 = zext i1 %cmp to i32
-  %add.i = add nsw i32 %conv7, %h.039
-  %sext = shl i32 %add.i, 24
-  %conv8 = ashr exact i32 %sext, 24
-  %cmp9 = icmp eq i32 %conv8, %f.0
-  %conv10 = zext i1 %cmp9 to i32
-  %and = and i32 %conv10, %g.138
-  %inc = add i32 %h.039, 1
-  br i1 undef, label %for.inc11, label %for.body6
-
-for.inc11:                                        ; preds = %for.body6
-  %and.lcssa = phi i32 [ %and, %for.body6 ]
-  %inc12 = add nsw i32 %val, 1
-  %tobool = icmp eq i32 %inc12, 0
-  br i1 %tobool, label %for.cond14, label %for.body
-
-for.cond14:                                       ; preds = %for.cond14, %for.inc11
-  br i1 undef, label %for.cond, label %for.cond14
-}