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-rw-r--r--test/Transforms/GVN/malloc-load-removal.ll31
1 files changed, 28 insertions, 3 deletions
diff --git a/test/Transforms/GVN/malloc-load-removal.ll b/test/Transforms/GVN/malloc-load-removal.ll
index e93a62a..d2d2fd7 100644
--- a/test/Transforms/GVN/malloc-load-removal.ll
+++ b/test/Transforms/GVN/malloc-load-removal.ll
@@ -7,7 +7,7 @@ target triple = "x86_64-apple-macosx10.8.0"
declare i8* @malloc(i64) nounwind
-define noalias i8* @test() nounwind uwtable ssp {
+define noalias i8* @test1() nounwind uwtable ssp {
entry:
%call = tail call i8* @malloc(i64 100) nounwind
%0 = load i8* %call, align 1
@@ -21,11 +21,36 @@ if.then: ; preds = %entry
if.end: ; preds = %if.then, %entry
ret i8* %call
-; CHECK-LABEL: @test(
+; CHECK-LABEL: @test1(
; CHECK-NOT: load
; CHECK-NOT: icmp
-; CHECK_NO_LIBCALLS-LABEL: @test(
+; CHECK_NO_LIBCALLS-LABEL: @test1(
+; CHECK_NO_LIBCALLS: load
+; CHECK_NO_LIBCALLS: icmp
+}
+
+declare i8* @_Znwm(i64) nounwind
+
+define noalias i8* @test2() nounwind uwtable ssp {
+entry:
+ %call = tail call i8* @_Znwm(i64 100) nounwind
+ %0 = load i8* %call, align 1
+ %tobool = icmp eq i8 %0, 0
+ br i1 %tobool, label %if.end, label %if.then
+
+if.then: ; preds = %entry
+ store i8 0, i8* %call, align 1
+ br label %if.end
+
+if.end: ; preds = %if.then, %entry
+ ret i8* %call
+
+; CHECK-LABEL: @test2(
+; CHECK-NOT: load
+; CHECK-NOT: icmp
+
+; CHECK_NO_LIBCALLS-LABEL: @test2(
; CHECK_NO_LIBCALLS: load
; CHECK_NO_LIBCALLS: icmp
}