Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

external/llvm/test/Transforms/IndVarSimplify/sink-alloca.ll

@@ -1,56 +0,0 @@
-; RUN: opt < %s -indvars -S | FileCheck %s
-target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
-target triple = "i386-apple-darwin10.0"
-
-; PR4775
-; Indvars shouldn't sink the alloca out of the entry block, even though
-; it's not used until after the loop.
-define i32 @main() nounwind {
-; CHECK: entry:
-; CHECK-NEXT: %result.i = alloca i32, align 4
-entry:
-  %result.i = alloca i32, align 4                 ; <i32*> [#uses=2]
-  br label %while.cond
-
-while.cond:                                       ; preds = %while.cond, %entry
-  %call = call i32 @bar() nounwind                ; <i32> [#uses=1]
-  %tobool = icmp eq i32 %call, 0                  ; <i1> [#uses=1]
-  br i1 %tobool, label %while.end, label %while.cond
-
-while.end:                                        ; preds = %while.cond
-  store volatile i32 0, i32* %result.i
-  %tmp.i = load volatile i32, i32* %result.i           ; <i32> [#uses=0]
-  ret i32 0
-}
-declare i32 @bar()
-
-; <rdar://problem/10352360>
-; Indvars shouldn't sink the first alloca between the stacksave and stackrestore
-; intrinsics.
-declare i8* @a(...)
-declare i8* @llvm.stacksave() nounwind
-declare void @llvm.stackrestore(i8*) nounwind
-define void @h(i64 %n) nounwind uwtable ssp {
-; CHECK: entry:
-; CHECK-NEXT: %vla = alloca i8*
-; CHECK-NEXT: %savedstack = call i8* @llvm.stacksave()
-entry:
-  %vla = alloca i8*, i64 %n, align 16
-  %savedstack = call i8* @llvm.stacksave() nounwind
-  %vla.i = alloca i8*, i64 %n, align 16
-  br label %for.body.i
-
-for.body.i:
-  %indvars.iv37.i = phi i64 [ %indvars.iv.next38.i, %for.body.i ], [ 0, %entry ]
-  %call.i = call i8* (...) @a() nounwind
-  %arrayidx.i = getelementptr inbounds i8*, i8** %vla.i, i64 %indvars.iv37.i
-  store i8* %call.i, i8** %arrayidx.i, align 8
-  %indvars.iv.next38.i = add i64 %indvars.iv37.i, 1
-  %exitcond5 = icmp eq i64 %indvars.iv.next38.i, %n
-  br i1 %exitcond5, label %g.exit, label %for.body.i
-
-g.exit:
-  call void @llvm.stackrestore(i8* %savedstack) nounwind
-  %call1 = call i8* (...) @a(i8** %vla) nounwind
-  ret void
-}