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authorChris Lattner <sabre@nondot.org>2006-03-01 03:43:38 +0000
committerChris Lattner <sabre@nondot.org>2006-03-01 03:43:38 +0000
commitcf6a9fbd9b15aa218116577726a91501727a17a1 (patch)
tree3329b6ba987b0830497bc95f17a5ec871d34106b /test
parentd30bf01e9064a668eaa896a3e9c79d8f0290b6a7 (diff)
downloadexternal_llvm-cf6a9fbd9b15aa218116577726a91501727a17a1.zip
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new testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26439 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
-rw-r--r--test/CodeGen/X86/mul-shift-reassoc.ll12
1 files changed, 12 insertions, 0 deletions
diff --git a/test/CodeGen/X86/mul-shift-reassoc.ll b/test/CodeGen/X86/mul-shift-reassoc.ll
new file mode 100644
index 0000000..f870f7a
--- /dev/null
+++ b/test/CodeGen/X86/mul-shift-reassoc.ll
@@ -0,0 +1,12 @@
+; RUN: llvm-as < %s | llc -march=x86 | grep lea
+; RUN: llvm-as < %s | llc -march=x86 | not grep add
+
+int %test(int %X, int %Y) {
+ ; Push the shl through the mul to allow an LEA to be formed, instead
+ ; of using a shift and add separately.
+ %tmp.2 = shl int %X, ubyte 1
+ %tmp.3 = mul int %tmp.2, %Y
+ %tmp.5 = add int %tmp.3, %Y
+ ret int %tmp.5
+}
+