1 files changed, 116 insertions, 0 deletions
diff --git a/test/Transforms/ConstantHoisting/X86/phi.ll b/test/Transforms/ConstantHoisting/X86/phi.ll
new file mode 100644
index 0000000..086df14
--- /dev/null
+++ b/test/Transforms/ConstantHoisting/X86/phi.ll
@@ -0,0 +1,116 @@
+; RUN: opt -S -consthoist < %s | FileCheck %s
+
+target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-apple-macosx10.9.0"
+
+; PR18626
+define i8* @test1(i1 %cmp, i64* %tmp) {
+entry:
+  call void @foo(i8* inttoptr (i64 68719476735 to i8*))
+  br i1 %cmp, label %if.end, label %return
+
+if.end:                                           ; preds = %bb1
+  call void @foo(i8* inttoptr (i64 68719476736 to i8*))
+  br label %return
+
+return:
+  %retval.0 = phi i8* [ null, %entry ], [ inttoptr (i64 68719476736 to i8*), %if.end ]
+  store i64 1172321806, i64* %tmp
+  ret i8* %retval.0
+
+; CHECK-LABEL: @test1
+; CHECK: if.end:
+; CHECK: %2 = inttoptr i64 %const to i8*
+; CHECK-NEXT: br
+; CHECK: return:
+; CHECK-NEXT: %retval.0 = phi i8* [ null, %entry ], [ %2, %if.end ]
+}
+
+define void @test2(i1 %cmp, i64** %tmp) {
+entry:
+  call void @foo(i8* inttoptr (i64 68719476736 to i8*))
+  br i1 %cmp, label %if.end, label %return
+
+if.end:                                           ; preds = %bb1
+  call void @foo(i8* inttoptr (i64 68719476736 to i8*))
+  br label %return
+
+return:
+  store i64* inttoptr (i64 68719476735 to i64*), i64** %tmp
+  ret void
+
+; CHECK-LABEL: @test2
+; CHECK: return:
+; CHECK-NEXT: %const_mat = add i64 %const, -1
+; CHECK-NEXT: inttoptr i64 %const_mat to i64*
+}
+
+declare void @foo(i8*)
+
+; PR18768
+define i32 @test3(i1 %c) {
+entry:
+  br i1 %c, label %if.then, label %if.end3
+
+if.then:                                          ; preds = %entry
+  br label %if.end3
+
+if.end3:                                          ; preds = %if.then, %entry
+  %d.0 = phi i32* [ inttoptr (i64 985162435264511 to i32*), %entry ], [ null, %if.then ]
+  %cmp4 = icmp eq i32* %d.0, inttoptr (i64 985162435264511 to i32*)
+  %cmp6 = icmp eq i32* %d.0, inttoptr (i64 985162418487296 to i32*)
+  %or = or i1 %cmp4, %cmp6
+  br i1 %or, label %if.then8, label %if.end9
+
+if.then8:                                         ; preds = %if.end3
+  ret i32 1
+
+if.end9:                                          ; preds = %if.then8, %if.end3
+  ret i32 undef
+}
+
+; <rdar://problem/16394449>
+define i64 @switch_test1(i64 %a) {
+; CHECK-LABEL: @switch_test1
+; CHECK: %0 = phi i64 [ %const, %case2 ], [ %const_mat, %Entry ], [ %const_mat, %Entry ]
+Entry:
+  %sel = add i64 %a, 4519019440
+  switch i64 %sel, label %fail [
+    i64 462, label %continuation
+    i64 449, label %case2
+    i64 443, label %continuation
+  ]
+
+case2:
+  br label %continuation
+
+continuation:
+  %0 = phi i64 [ 4519019440, %case2 ], [ 4519019460, %Entry ], [ 4519019460, %Entry ]
+  ret i64 0;
+
+fail:
+  ret i64 -1;
+}
+
+define i64 @switch_test2(i64 %a) {
+; CHECK-LABEL: @switch_test2
+; CHECK: %2 = phi i64* [ %1, %case2 ], [ %0, %Entry ], [ %0, %Entry ]
+Entry:
+  %sel = add i64 %a, 4519019440
+  switch i64 %sel, label %fail [
+    i64 462, label %continuation
+    i64 449, label %case2
+    i64 443, label %continuation
+  ]
+
+case2:
+  br label %continuation
+
+continuation:
+  %0 = phi i64* [ inttoptr(i64 4519019440 to i64*), %case2 ], [ inttoptr(i64 4519019460 to i64*), %Entry ], [ inttoptr(i64 4519019460 to i64*), %Entry ]
+  ret i64 0;
+
+fail:
+  ret i64 -1;
+}
+