Imported Upstream version 6.10.0.49

Former-commit-id: 1d6753294b2993e1fbf92de9366bb9544db4189b

external/llvm-project/llvm/test/Analysis/PostDominators/infinite-loop.ll

@@ -0,0 +1,30 @@
+; RUN: opt < %s -postdomtree -analyze | FileCheck %s
+; RUN: opt < %s -passes='print<postdomtree>' 2>&1 | FileCheck %s
+
+@a = external global i32, align 4
+
+define void @fn1() {
+entry:
+  store i32 5, i32* @a, align 4
+  %call = call i32 (...) @foo()
+  %tobool = icmp ne i32 %call, 0
+  br i1 %tobool, label %if.then, label %if.end
+
+if.then:                                          ; preds = %entry
+  br label %loop
+
+loop:                                             ; preds = %loop, %if.then
+  br label %loop
+
+if.end:                                           ; preds = %entry
+  store i32 6, i32* @a, align 4
+  ret void
+}
+
+declare i32 @foo(...)
+
+; CHECK:      Inorder PostDominator Tree:
+; CHECK-NEXT:  [1]  <<exit node>>
+; CHECK:         [2] %loop
+; CHECK-NEXT:      [3] %if.then
+; CHECK: Roots: %if.end %loop

external/llvm-project/llvm/test/Analysis/PostDominators/infinite-loop2.ll

@@ -0,0 +1,34 @@
+; RUN: opt < %s -postdomtree -analyze | FileCheck %s
+; RUN: opt < %s -passes='print<postdomtree>' 2>&1 | FileCheck %s
+
+@a = external global i32, align 4
+
+define void @fn1() {
+entry:
+  store i32 5, i32* @a, align 4
+  %call = call i32 (...) @foo()
+  %tobool = icmp ne i32 %call, 0
+  br i1 %tobool, label %if.then, label %if.end
+
+if.then:                                          ; preds = %entry
+  br label %loop
+
+loop:                                             ; preds = %loop, %if.then
+  %0 = load i32, i32* @a, align 4
+  call void @bar(i32 %0)
+  br label %loop
+
+if.end:                                           ; preds = %entry
+  store i32 6, i32* @a, align 4
+  ret void
+}
+
+declare i32 @foo(...)
+declare void @bar(i32)
+
+
+; CHECK:      Inorder PostDominator Tree:
+; CHECK-NEXT:  [1]  <<exit node>>
+; CHECK:         [2] %loop
+; CHECK-NEXT:      [3] %if.then
+; CHECK: Roots: %if.end %loop

external/llvm-project/llvm/test/Analysis/PostDominators/infinite-loop3.ll

@@ -0,0 +1,34 @@
+; RUN: opt < %s -postdomtree -analyze | FileCheck %s
+; RUN: opt < %s -passes='print<postdomtree>' 2>&1 | FileCheck %s
+
+@a = external global i32, align 4
+
+define void @fn1() {
+entry:
+  store i32 5, i32* @a, align 4
+  %call = call i32 (...) @foo()
+  %tobool = icmp ne i32 %call, 0
+  br i1 %tobool, label %if.then, label %if.end
+
+if.then:                                          ; preds = %entry, %loop
+  br label %loop
+
+loop:                                             ; preds = %loop, %if.then
+  %0 = load i32, i32* @a, align 4
+  call void @bar(i32 %0)
+  br i1 true, label %loop, label %if.then
+
+if.end:                                           ; preds = %entry
+  store i32 6, i32* @a, align 4
+  ret void
+}
+
+declare i32 @foo(...)
+declare void @bar(i32)
+
+
+; CHECK:      Inorder PostDominator Tree:
+; CHECK-NEXT:  [1]  <<exit node>>
+; CHECK:         [2] %loop
+; CHECK-NEXT:      [3] %if.then
+; CHECK: Roots: %if.end %loop

external/llvm-project/llvm/test/Analysis/PostDominators/pr1098.ll

@@ -0,0 +1,16 @@
+; RUN: opt < %s -postdomtree -analyze | FileCheck %s
+; RUN: opt < %s -passes='print<postdomtree>' 2>&1 | FileCheck %s
+; PR932
+
+define void @foo(i1 %x) {
+; CHECK: entry
+entry:
+        br i1 %x, label %bb1, label %bb0
+bb0:            ; preds = %entry, bb0
+        br label %bb0
+bb1:            ; preds = %entry
+        br label %bb2
+bb2:            ; preds = %bb1
+        ret void
+}
+

external/llvm-project/llvm/test/Analysis/PostDominators/pr24415.ll

@@ -0,0 +1,18 @@
+; RUN: opt < %s -postdomtree -analyze | FileCheck %s
+; RUN: opt < %s -passes='print<postdomtree>' 2>&1 | FileCheck %s
+
+; Function Attrs: nounwind ssp uwtable
+define void @foo() {
+  br label %1
+
+; <label>:1                                       ; preds = %0, %1
+  br label %1
+                                                  ; No predecessors!
+  ret void
+}
+
+; CHECK: Inorder PostDominator Tree: 
+; CHECK-NEXT:   [1]  <<exit node>>
+; CHECK-NEXT:     [2] %2
+; CHECK-NEXT:     [2] %1
+; CHECK-NEXT:       [3] %0

external/llvm-project/llvm/test/Analysis/PostDominators/pr6047_a.ll

@@ -0,0 +1,21 @@
+; RUN: opt < %s -postdomtree -analyze | FileCheck %s
+define internal void @f() {
+entry:
+  br i1 undef, label %bb35, label %bb3.i
+
+bb3.i:
+  br label %bb3.i
+
+bb35.loopexit3:
+  br label %bb35
+
+bb35:
+  ret void
+}
+
+;CHECK:Inorder PostDominator Tree:
+;CHECK-NEXT:  [1]  <<exit node>>
+;CHECK-NEXT:    [2] %bb35
+;CHECK-NEXT:      [3] %bb35.loopexit3
+;CHECK-NEXT:    [2] %entry
+;CHECK-NEXT:    [2] %bb3.i

external/llvm-project/llvm/test/Analysis/PostDominators/pr6047_b.ll

@@ -0,0 +1,25 @@
+; RUN: opt < %s -postdomtree -analyze | FileCheck %s
+define internal void @f() {
+entry:
+  br i1 undef, label %a, label %bb3.i
+
+a:
+  br i1 undef, label %bb35, label %bb3.i
+
+bb3.i:
+  br label %bb3.i
+
+
+bb35.loopexit3:
+  br label %bb35
+
+bb35:
+  ret void
+}
+; CHECK: Inorder PostDominator Tree:
+; CHECK-NEXT:   [1]  <<exit node>>
+; CHECK-NEXT:     [2] %bb35
+; CHECK-NEXT:       [3] %bb35.loopexit3
+; CHECK-NEXT:     [2] %a
+; CHECK-NEXT:     [2] %entry
+; CHECK-NEXT:     [2] %bb3.i

external/llvm-project/llvm/test/Analysis/PostDominators/pr6047_c.ll

@@ -0,0 +1,197 @@
+; RUN: opt < %s -postdomtree -analyze | FileCheck %s
+define internal void @f() {
+entry:
+  br i1 undef, label %bb35, label %bb3.i
+
+bb3.i:
+  br label %bb3.i
+
+bb:
+  br label %bb35
+
+bb.i:
+  br label %bb35
+
+_float32_unpack.exit:
+  br label %bb35
+
+bb.i5:
+  br label %bb35
+
+_float32_unpack.exit8:
+  br label %bb35
+
+bb32.preheader:
+  br label %bb35
+
+bb3:
+  br label %bb35
+
+bb3.split.us:
+  br label %bb35
+
+bb.i4.us:
+  br label %bb35
+
+bb7.i.us:
+  br label %bb35
+
+bb.i4.us.backedge:
+  br label %bb35
+
+bb1.i.us:
+  br label %bb35
+
+bb6.i.us:
+  br label %bb35
+
+bb4.i.us:
+  br label %bb35
+
+bb8.i.us:
+  br label %bb35
+
+bb3.i.loopexit.us:
+  br label %bb35
+
+bb.nph21:
+  br label %bb35
+
+bb4:
+  br label %bb35
+
+bb5:
+  br label %bb35
+
+bb14.preheader:
+  br label %bb35
+
+bb.nph18:
+  br label %bb35
+
+bb8.us.preheader:
+  br label %bb35
+
+bb8.preheader:
+  br label %bb35
+
+bb8.us:
+  br label %bb35
+
+bb8:
+  br label %bb35
+
+bb15.loopexit:
+  br label %bb35
+
+bb15.loopexit2:
+  br label %bb35
+
+bb15:
+  br label %bb35
+
+bb16:
+  br label %bb35
+
+bb17.loopexit.split:
+  br label %bb35
+
+bb.nph14:
+  br label %bb35
+
+bb19:
+  br label %bb35
+
+bb20:
+  br label %bb35
+
+bb29.preheader:
+  br label %bb35
+
+bb.nph:
+  br label %bb35
+
+bb23.us.preheader:
+  br label %bb35
+
+bb23.preheader:
+  br label %bb35
+
+bb23.us:
+  br label %bb35
+
+bb23:
+  br label %bb35
+
+bb30.loopexit:
+  br label %bb35
+
+bb30.loopexit1:
+  br label %bb35
+
+bb30:
+  br label %bb35
+
+bb31:
+  br label %bb35
+
+bb35.loopexit:
+  br label %bb35
+
+bb35.loopexit3:
+  br label %bb35
+
+bb35:
+  ret void
+}
+; CHECK: Inorder PostDominator Tree:
+; CHECK-NEXT:   [1]  <<exit node>>
+; CHECK-NEXT:     [2] %bb35
+; CHECK-NEXT:       [3] %bb
+; CHECK-NEXT:       [3] %bb.i
+; CHECK-NEXT:       [3] %_float32_unpack.exit
+; CHECK-NEXT:       [3] %bb.i5
+; CHECK-NEXT:       [3] %_float32_unpack.exit8
+; CHECK-NEXT:       [3] %bb32.preheader
+; CHECK-NEXT:       [3] %bb3
+; CHECK-NEXT:       [3] %bb3.split.us
+; CHECK-NEXT:       [3] %bb.i4.us
+; CHECK-NEXT:       [3] %bb7.i.us
+; CHECK-NEXT:       [3] %bb.i4.us.backedge
+; CHECK-NEXT:       [3] %bb1.i.us
+; CHECK-NEXT:       [3] %bb6.i.us
+; CHECK-NEXT:       [3] %bb4.i.us
+; CHECK-NEXT:       [3] %bb8.i.us
+; CHECK-NEXT:       [3] %bb3.i.loopexit.us
+; CHECK-NEXT:       [3] %bb.nph21
+; CHECK-NEXT:       [3] %bb4
+; CHECK-NEXT:       [3] %bb5
+; CHECK-NEXT:       [3] %bb14.preheader
+; CHECK-NEXT:       [3] %bb.nph18
+; CHECK-NEXT:       [3] %bb8.us.preheader
+; CHECK-NEXT:       [3] %bb8.preheader
+; CHECK-NEXT:       [3] %bb8.us
+; CHECK-NEXT:       [3] %bb8
+; CHECK-NEXT:       [3] %bb15.loopexit
+; CHECK-NEXT:       [3] %bb15.loopexit2
+; CHECK-NEXT:       [3] %bb15
+; CHECK-NEXT:       [3] %bb16
+; CHECK-NEXT:       [3] %bb17.loopexit.split
+; CHECK-NEXT:       [3] %bb.nph14
+; CHECK-NEXT:       [3] %bb19
+; CHECK-NEXT:       [3] %bb20
+; CHECK-NEXT:       [3] %bb29.preheader
+; CHECK-NEXT:       [3] %bb.nph
+; CHECK-NEXT:       [3] %bb23.us.preheader
+; CHECK-NEXT:       [3] %bb23.preheader
+; CHECK-NEXT:       [3] %bb23.us
+; CHECK-NEXT:       [3] %bb23
+; CHECK-NEXT:       [3] %bb30.loopexit
+; CHECK-NEXT:       [3] %bb30.loopexit1
+; CHECK-NEXT:       [3] %bb30
+; CHECK-NEXT:       [3] %bb31
+; CHECK-NEXT:       [3] %bb35.loopexit
+; CHECK-NEXT:       [3] %bb35.loopexit3
+; CHECK-NEXT:     [2] %entry
+; CHECK-NEXT:     [2] %bb3.i
+; CHECK-NEXT: Roots: %bb35 %bb3.i

external/llvm-project/llvm/test/Analysis/PostDominators/pr6047_d.ll

@@ -0,0 +1,32 @@
+; RUN: opt < %s -postdomtree -analyze | FileCheck %s
+define internal void @f() {
+entry:
+  br i1 1, label %a, label %b
+
+a:
+br label %c
+
+b:
+br label %c
+
+c:
+  br i1 undef, label %bb35, label %bb3.i
+
+bb3.i:
+  br label %bb3.i
+
+bb35.loopexit3:
+  br label %bb35
+
+bb35:
+  ret void
+}
+; CHECK: Inorder PostDominator Tree:
+; CHECK-NEXT:   [1]  <<exit node>>
+; CHECK-NEXT:     [2] %bb35
+; CHECK-NEXT:       [3] %bb35.loopexit3
+; CHECK-NEXT:     [2] %c
+; CHECK-NEXT:       [3] %a
+; CHECK-NEXT:       [3] %entry
+; CHECK-NEXT:       [3] %b
+; CHECK-NEXT:     [2] %bb3.i