From: Matthijs Kooijman <matthijs@stdin.nl>
Date: Wed, 16 Jul 2008 12:57:25 +0000 (+0000)
Subject: Add a few cases to instcombine's extractvalue testcase.
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=d8b4d604902ec2bdeca0812f5a37c72cccc327bf;p=oota-llvm.git

Add a few cases to instcombine's extractvalue testcase.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53675 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/test/Transforms/InstCombine/extractvalue.ll b/test/Transforms/InstCombine/extractvalue.ll
index e84b102923e..59b996e130e 100644
--- a/test/Transforms/InstCombine/extractvalue.ll
+++ b/test/Transforms/InstCombine/extractvalue.ll
@@ -17,8 +17,22 @@ define i32 @foo() {
         %ns1.2 = insertvalue {i32, {i32, i32}} %ns1.1, i32 %v1, 1, 0
         %ns1   = insertvalue {i32, {i32, i32}} %ns1.2, i32 %v2, 1, 1
         %s2    = extractvalue {i32, {i32, i32}} %ns1, 1
+        %v3    = extractvalue {i32, {i32, i32}} %ns1, 1, 1
         call void @bar({i32, i32} %s2)
-        %v3 = extractvalue {i32, {i32, i32}} %ns1, 1, 1
-        ret i32 %v3
+
+        ; Use nested extractvalues to get to a value
+        %s3    = extractvalue {i32, {i32, i32}} %ns1, 1
+        %v4    = extractvalue {i32, i32} %s3, 1
+        call void @bar({i32, i32} %s3)
+
+        ; Use nested insertvalues to build a nested struct
+        %s4.1 = insertvalue {i32, i32} undef, i32 %v3, 0
+        %s4   = insertvalue {i32, i32} %s4.1, i32 %v4, 1
+        %ns2  = insertvalue {i32, {i32, i32}} undef, {i32, i32} %s4, 1
+
+        ; And now extract a single value from there
+        %v5   = extractvalue {i32, {i32, i32}} %ns2, 1, 1
+
+        ret i32 %v5
 }