Revert "Temporarily Revert "Add basic loop fusion pass.""
The reversion apparently deleted the test/Transforms directory.
Will be re-reverting again.
llvm-svn: 358552
diff --git a/llvm/test/Transforms/Inline/nested-inline.ll b/llvm/test/Transforms/Inline/nested-inline.ll
new file mode 100644
index 0000000..7a207f6
--- /dev/null
+++ b/llvm/test/Transforms/Inline/nested-inline.ll
@@ -0,0 +1,112 @@
+; RUN: opt < %s -inline -S | FileCheck %s
+; RUN: opt < %s -passes='cgscc(inline)' -S | FileCheck %s
+; Test that bar and bar2 are both inlined throughout and removed.
+@A = weak global i32 0 ; <i32*> [#uses=1]
+@B = weak global i32 0 ; <i32*> [#uses=1]
+@C = weak global i32 0 ; <i32*> [#uses=1]
+
+define fastcc void @foo(i32 %X) {
+entry:
+; CHECK-LABEL: @foo(
+ %ALL = alloca i32, align 4 ; <i32*> [#uses=1]
+ %tmp1 = and i32 %X, 1 ; <i32> [#uses=1]
+ %tmp1.upgrd.1 = icmp eq i32 %tmp1, 0 ; <i1> [#uses=1]
+ br i1 %tmp1.upgrd.1, label %cond_next, label %cond_true
+
+cond_true: ; preds = %entry
+ store i32 1, i32* @A
+ br label %cond_next
+
+cond_next: ; preds = %cond_true, %entry
+ %tmp4 = and i32 %X, 2 ; <i32> [#uses=1]
+ %tmp4.upgrd.2 = icmp eq i32 %tmp4, 0 ; <i1> [#uses=1]
+ br i1 %tmp4.upgrd.2, label %cond_next7, label %cond_true5
+
+cond_true5: ; preds = %cond_next
+ store i32 1, i32* @B
+ br label %cond_next7
+
+cond_next7: ; preds = %cond_true5, %cond_next
+ %tmp10 = and i32 %X, 4 ; <i32> [#uses=1]
+ %tmp10.upgrd.3 = icmp eq i32 %tmp10, 0 ; <i1> [#uses=1]
+ br i1 %tmp10.upgrd.3, label %cond_next13, label %cond_true11
+
+cond_true11: ; preds = %cond_next7
+ store i32 1, i32* @C
+ br label %cond_next13
+
+cond_next13: ; preds = %cond_true11, %cond_next7
+ %tmp16 = and i32 %X, 8 ; <i32> [#uses=1]
+ %tmp16.upgrd.4 = icmp eq i32 %tmp16, 0 ; <i1> [#uses=1]
+ br i1 %tmp16.upgrd.4, label %UnifiedReturnBlock, label %cond_true17
+
+cond_true17: ; preds = %cond_next13
+ call void @ext( i32* %ALL )
+ ret void
+
+UnifiedReturnBlock: ; preds = %cond_next13
+ ret void
+}
+
+; CHECK-NOT: @bar(
+define internal fastcc void @bar(i32 %X) {
+entry:
+ %ALL = alloca i32, align 4 ; <i32*> [#uses=1]
+ %tmp1 = and i32 %X, 1 ; <i32> [#uses=1]
+ %tmp1.upgrd.1 = icmp eq i32 %tmp1, 0 ; <i1> [#uses=1]
+ br i1 %tmp1.upgrd.1, label %cond_next, label %cond_true
+
+cond_true: ; preds = %entry
+ store i32 1, i32* @A
+ br label %cond_next
+
+cond_next: ; preds = %cond_true, %entry
+ %tmp4 = and i32 %X, 2 ; <i32> [#uses=1]
+ %tmp4.upgrd.2 = icmp eq i32 %tmp4, 0 ; <i1> [#uses=1]
+ br i1 %tmp4.upgrd.2, label %cond_next7, label %cond_true5
+
+cond_true5: ; preds = %cond_next
+ store i32 1, i32* @B
+ br label %cond_next7
+
+cond_next7: ; preds = %cond_true5, %cond_next
+ %tmp10 = and i32 %X, 4 ; <i32> [#uses=1]
+ %tmp10.upgrd.3 = icmp eq i32 %tmp10, 0 ; <i1> [#uses=1]
+ br i1 %tmp10.upgrd.3, label %cond_next13, label %cond_true11
+
+cond_true11: ; preds = %cond_next7
+ store i32 1, i32* @C
+ br label %cond_next13
+
+cond_next13: ; preds = %cond_true11, %cond_next7
+ %tmp16 = and i32 %X, 8 ; <i32> [#uses=1]
+ %tmp16.upgrd.4 = icmp eq i32 %tmp16, 0 ; <i1> [#uses=1]
+ br i1 %tmp16.upgrd.4, label %UnifiedReturnBlock, label %cond_true17
+
+cond_true17: ; preds = %cond_next13
+ call void @foo( i32 %X )
+ ret void
+
+UnifiedReturnBlock: ; preds = %cond_next13
+ ret void
+}
+
+define internal fastcc void @bar2(i32 %X) {
+entry:
+ call void @foo( i32 %X )
+ ret void
+}
+
+declare void @ext(i32*)
+
+define void @test(i32 %X) {
+entry:
+; CHECK: test
+; CHECK-NOT: @bar(
+ tail call fastcc void @bar( i32 %X )
+ tail call fastcc void @bar( i32 %X )
+ tail call fastcc void @bar2( i32 %X )
+ tail call fastcc void @bar2( i32 %X )
+ ret void
+; CHECK: ret
+}