llvm/test/Transforms/LoopVectorize/X86, branch stable http://llvm.org https://git.amat.us/llvm/atom/test/Transforms/LoopVectorize/X86?h=stable 2013-04-01T10:23:49Z X86TTI: Add accurate costs for itofp operations, based on the actual instruction counts. 2013-04-01T10:23:49Z Benjamin Kramer benny.kra@googlemail.com 2013-04-01T10:23:49Z urn:sha1:13497b3aa7589fc4f9e924f850a7e5151e9ddd2f git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178459 91177308-0d34-0410-b5e6-96231b3b80d8 LoopVectorizer: Insert some white space to make test case more readable 2013-03-14T21:31:09Z Arnold Schwaighofer aschwaighofer@apple.com 2013-03-14T21:31:09Z urn:sha1:c184a5f4cad9415ee93ff6d24da2ed676573b61c Also remove some unneeded function attributes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177114 91177308-0d34-0410-b5e6-96231b3b80d8 Add missing asserts flag to test - it uses debug flags 2013-03-14T19:01:58Z Arnold Schwaighofer aschwaighofer@apple.com 2013-03-14T19:01:58Z urn:sha1:e2188d9c43d9e81407d2c7b7ef887e27f028a8ff git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177102 91177308-0d34-0410-b5e6-96231b3b80d8 LoopVectorize: Invert case when we use a vector cmp value to query select cost 2013-03-14T18:54:36Z Arnold Schwaighofer aschwaighofer@apple.com 2013-03-14T18:54:36Z urn:sha1:d517da33b712b5d8d687ee5e5974056a4787ec4f We generate a select with a vectorized condition argument when the condition is NOT loop invariant. Not the other way around. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177098 91177308-0d34-0410-b5e6-96231b3b80d8 Force cpu in test. 2013-03-08T17:01:18Z Benjamin Kramer benny.kra@googlemail.com 2013-03-08T17:01:18Z urn:sha1:35a4a0ca510feb21aeffb27982b9610f65f55e61 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176702 91177308-0d34-0410-b5e6-96231b3b80d8 Insert the reduction start value into the first bypass block to preserve domination. 2013-03-08T16:58:37Z Benjamin Kramer benny.kra@googlemail.com 2013-03-08T16:58:37Z urn:sha1:f22d9cfa6d145ce26930804cc3ac54340f49c38b Fixes PR15344. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176701 91177308-0d34-0410-b5e6-96231b3b80d8 X86 cost model: Adjust cost for custom lowered vector multiplies 2013-03-02T04:02:52Z Arnold Schwaighofer aschwaighofer@apple.com 2013-03-02T04:02:52Z urn:sha1:5f0d9dbdf48a9efe16bfadf88e5335f7b9a8ec3f This matters for example in following matrix multiply: int **mmult(int rows, int cols, int **m1, int **m2, int **m3) { int i, j, k, val; for (i=0; i<rows; i++) { for (j=0; j<cols; j++) { val = 0; for (k=0; k<cols; k++) { val += m1[i][k] * m2[k][j]; } m3[i][j] = val; } } return(m3); } Taken from the test-suite benchmark Shootout. We estimate the cost of the multiply to be 2 while we generate 9 instructions for it and end up being quite a bit slower than the scalar version (48% on my machine). Also, properly differentiate between avx1 and avx2. On avx-1 we still split the vector into 2 128bits and handle the subvector muls like above with 9 instructions. Only on avx-2 will we have a cost of 9 for v4i64. I changed the test case in test/Transforms/LoopVectorize/X86/avx1.ll to use an add instead of a mul because with a mul we now no longer vectorize. I did verify that the mul would be indeed more expensive when vectorized with 3 kernels: for (i ...) r += a[i] * 3; for (i ...) m1[i] = m1[i] * 3; // This matches the test case in avx1.ll and a matrix multiply. In each case the vectorized version was considerably slower. radar://13304919 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176403 91177308-0d34-0410-b5e6-96231b3b80d8 Forgot to 'svn add' the LoopVectorizer tests for the new parallel loop metadata, sorry. 2013-02-15T21:50:19Z Pekka Jaaskelainen pekka.jaaskelainen@tut.fi 2013-02-15T21:50:19Z urn:sha1:b3dedc2ef26fd3c5ee5d14e5ef10d6dcf44fedd7 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175311 91177308-0d34-0410-b5e6-96231b3b80d8 Formatting. 2013-02-05T15:32:16Z NAKAMURA Takumi geek4civic@gmail.com 2013-02-05T15:32:16Z urn:sha1:f5b39cd8dec1e64ce060bf5bcafc13aaf72d9d70 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174380 91177308-0d34-0410-b5e6-96231b3b80d8 llvm/test/Transforms/LoopVectorize/X86/vector_ptr_load_store.ll: "-debug" requires +Asserts. 2013-02-05T15:32:10Z NAKAMURA Takumi geek4civic@gmail.com 2013-02-05T15:32:10Z urn:sha1:eec44ce8345a0207a17eb4ecd0445db7164b7ccf git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174379 91177308-0d34-0410-b5e6-96231b3b80d8