[llvm-commits] [llvm] r56781 - /llvm/trunk/test/Transforms/ScalarRepl/load-store-aggregate.ll
Matthijs Kooijman
matthijs at stdin.nl
Mon Sep 29 03:42:14 PDT 2008
Author: matthijs
Date: Mon Sep 29 05:42:13 2008
New Revision: 56781
URL: http://llvm.org/viewvc/llvm-project?rev=56781&view=rev
Log:
Add a testcase showing that scalarrepl supports first class structs.
I originally made this script to show that scalarrepl didn't support them, but
it turned out it does. Better to still add the testcase then.
Added:
llvm/trunk/test/Transforms/ScalarRepl/load-store-aggregate.ll
Added: llvm/trunk/test/Transforms/ScalarRepl/load-store-aggregate.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/ScalarRepl/load-store-aggregate.ll?rev=56781&view=auto
==============================================================================
--- llvm/trunk/test/Transforms/ScalarRepl/load-store-aggregate.ll (added)
+++ llvm/trunk/test/Transforms/ScalarRepl/load-store-aggregate.ll Mon Sep 29 05:42:13 2008
@@ -0,0 +1,30 @@
+; This testcase shows that scalarrepl is able to replace struct alloca's which
+; are directly loaded from or stored to (using the first class aggregates
+; feature).
+
+; RUN: llvm-as < %s | opt -scalarrepl | llvm-dis > %t
+; RUN: cat %t | not grep alloca
+
+%struct.foo = type { i32, i32 }
+
+define i32 @test(%struct.foo* %P) {
+entry:
+ %L = alloca %struct.foo, align 8 ; <%struct.foo*> [#uses=2]
+ %V = load %struct.foo* %P
+ store %struct.foo %V, %struct.foo* %L
+
+ %tmp4 = getelementptr %struct.foo* %L, i32 0, i32 0 ; <i32*> [#uses=1]
+ %tmp5 = load i32* %tmp4 ; <i32> [#uses=1]
+ ret i32 %tmp5
+}
+
+define %struct.foo @test2(i32 %A, i32 %B) {
+entry:
+ %L = alloca %struct.foo, align 8 ; <%struct.foo*> [#uses=2]
+ %L.0 = getelementptr %struct.foo* %L, i32 0, i32 0
+ store i32 %A, i32* %L.0
+ %L.1 = getelementptr %struct.foo* %L, i32 0, i32 1
+ store i32 %B, i32* %L.1
+ %V = load %struct.foo* %L
+ ret %struct.foo %V
+}
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