From 0188ce454344a28e468d484bd3865c9cde818fd5 Mon Sep 17 00:00:00 2001
From: "Vikram S. Adve" <vadve@cs.uiuc.edu>
Date: Sat, 28 Sep 2002 16:51:47 +0000
Subject: Regression test for live range bug for call arguments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3962 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/CodeGen/Generic/badCallArgLRLLVM.ll | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 test/CodeGen/Generic/badCallArgLRLLVM.ll

(limited to 'test/CodeGen/Generic/badCallArgLRLLVM.ll')

diff --git a/test/CodeGen/Generic/badCallArgLRLLVM.ll b/test/CodeGen/Generic/badCallArgLRLLVM.ll
new file mode 100644
index 0000000000..0a29e6de18
--- /dev/null
+++ b/test/CodeGen/Generic/badCallArgLRLLVM.ll
@@ -0,0 +1,30 @@
+; This caused a problem because the argument of a call was defined by
+; the return value of another call that appears later in the code.
+; When processing the first call, the second call has not yet been processed
+; so no LiveRange has been created for its return value.
+; 
+; llc dies in UltraSparcRegInfo::suggestRegs4CallArgs() with:
+;     ERROR: In call instr, no LR for arg: 0x1009e0740 
+;
+implementation   ; Functions:
+
+declare int %getInt(int);
+
+int %main(int %argc, sbyte** %argv) {
+bb0:					;[#uses=0]
+        br label %bb2
+
+bb1:
+	%reg222 = call int (int)* %getInt(int %reg218) ;; ARG #1 HAS NO LR
+	%reg110 = add int %reg222, 1
+	%b = setle int %reg110, 0
+	br bool %b, label %bb2, label %bb3
+
+bb2:
+	%reg218 = call int (int)* %getInt(int %argc)   ;; THIS CALL NOT YET SEEN
+	br label %bb1
+
+bb3:
+	ret int %reg110
+}
+
-- 
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