From e6d5c77d5d5720285c20eba31fd9689db2517a9e Mon Sep 17 00:00:00 2001
From: Evan Cheng <evan.cheng@apple.com>
Date: Thu, 17 Jan 2008 07:26:31 +0000
Subject: [PATCH] Test case for varargs parameter attribute issue I just fixed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46127 91177308-0d34-0410-b5e6-96231b3b80d8
---
.../2008-01-16-VarargsParamAttrs.ll | 31 +++++++++++++++++++
1 file changed, 31 insertions(+)
create mode 100644 test/Transforms/DeadArgElim/2008-01-16-VarargsParamAttrs.ll
diff --git a/test/Transforms/DeadArgElim/2008-01-16-VarargsParamAttrs.ll b/test/Transforms/DeadArgElim/2008-01-16-VarargsParamAttrs.ll
new file mode 100644
index 00000000000..96cddf1fd3a
--- /dev/null
+++ b/test/Transforms/DeadArgElim/2008-01-16-VarargsParamAttrs.ll
@@ -0,0 +1,31 @@
+; RUN: llvm-as < %s | opt -deadargelim | llvm-dis | grep byval
+
+ %struct.point = type { double, double }
+@pts = global [4 x %struct.point] [ %struct.point { double 1.000000e+00, double 2.000000e+00 }, %struct.point { double 3.000000e+00, double 4.000000e+00 }, %struct.point { double 5.000000e+00, double 6.000000e+00 }, %struct.point { double 7.000000e+00, double 8.000000e+00 } ], align 32 ; <[4 x %struct.point]*> [#uses=1]
+
+define internal i32 @va1(i32 %nargs, ...) {
+entry:
+ %pi = alloca %struct.point ; <%struct.point*> [#uses=0]
+ %args = alloca i8* ; <i8**> [#uses=2]
+ %"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
+ %args1 = bitcast i8** %args to i8* ; <i8*> [#uses=1]
+ call void @llvm.va_start( i8* %args1 )
+ %args41 = bitcast i8** %args to i8* ; <i8*> [#uses=1]
+ call void @llvm.va_end( i8* %args41 )
+ ret i32 undef
+}
+
+declare void @llvm.va_start(i8*) nounwind
+
+declare void @llvm.va_end(i8*) nounwind
+
+define i32 @main() {
+entry:
+ %"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
+ %tmp = getelementptr [4 x %struct.point]* @pts, i32 0, i32 0 ; <%struct.point*> [#uses=1]
+ %tmp1 = call i32 (i32, ...)* @va1( i32 1, %struct.point* byval %tmp ) nounwind ; <i32> [#uses=0]
+ call void @exit( i32 0 ) noreturn nounwind
+ unreachable
+}
+
+declare void @exit(i32) noreturn nounwind