From 9e14cd355f4b1b5222965c108ad2c750bc1c891a Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Sat, 4 Mar 2006 09:35:02 +0000 Subject: [PATCH] new testcase git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26525 91177308-0d34-0410-b5e6-96231b3b80d8 --- test/Transforms/Reassociate/mulfactor.ll | 14 ++++++++++++++ test/Transforms/Reassociate/mulfactor2.ll | 13 +++++++++++++ 2 files changed, 27 insertions(+) create mode 100644 test/Transforms/Reassociate/mulfactor.ll create mode 100644 test/Transforms/Reassociate/mulfactor2.ll diff --git a/test/Transforms/Reassociate/mulfactor.ll b/test/Transforms/Reassociate/mulfactor.ll new file mode 100644 index 00000000000..76db242128f --- /dev/null +++ b/test/Transforms/Reassociate/mulfactor.ll @@ -0,0 +1,14 @@ +; RUN: llvm-as < %s | opt -reassociate -instcombine | llvm-dis | grep mul | wc -l | grep 2 + +; This should have exactly 2 multiplies when we're done. + +int %f(int %a, int %b) { + %tmp.2 = mul int %a, %a + %tmp.5 = shl int %a, ubyte 1 + %tmp.6 = mul int %tmp.5, %b + %tmp.10 = mul int %b, %b + %tmp.7 = add int %tmp.6, %tmp.2 + %tmp.11 = add int %tmp.7, %tmp.10 + ret int %tmp.11 +} + diff --git a/test/Transforms/Reassociate/mulfactor2.ll b/test/Transforms/Reassociate/mulfactor2.ll new file mode 100644 index 00000000000..e2c1a79bc5f --- /dev/null +++ b/test/Transforms/Reassociate/mulfactor2.ll @@ -0,0 +1,13 @@ +; This should turn into one multiply and one add. + +; RUN: llvm-as < mulfactor2.ll | opt -instcombine -reassociate -instcombine | llvm-dis | grep mul | wc -l | grep 1 && +; RUN: llvm-as < mulfactor2.ll | opt -instcombine -reassociate -instcombine | llvm-dis | grep add | wc -l | grep 1 +int %main(int %t) { + %tmp.3 = mul int %t, 12 ; [#uses=1] + %tmp.4 = add int %tmp.3, 5 ; [#uses=1] + %tmp.6 = mul int %t, 6 ; [#uses=1] + %tmp.8 = mul int %tmp.4, 3 ; [#uses=1] + %tmp.9 = add int %tmp.8, %tmp.6 ; [#uses=1] + ret int %tmp.9 +} +