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| author | Chris Lattner <sabre@nondot.org> | 2006-04-02 07:20:00 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2006-04-02 07:20:00 +0000 |
| commit | 220d2b89d69b7f78b6baac357b857475d53f6407 (patch) | |
| tree | bd324b6d0042b6b79ac771db52001020c3d82030 /lib/Target/PowerPC/README.txt | |
| parent | bbe77de450ef36b4f83cc3b57705a9758adbd925 (diff) | |
| download | llvm-220d2b89d69b7f78b6baac357b857475d53f6407.tar.gz llvm-220d2b89d69b7f78b6baac357b857475d53f6407.tar.bz2 llvm-220d2b89d69b7f78b6baac357b857475d53f6407.tar.xz | |
add a note
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27360 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/PowerPC/README.txt')
| -rw-r--r-- | lib/Target/PowerPC/README.txt | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/lib/Target/PowerPC/README.txt b/lib/Target/PowerPC/README.txt index 14a0bc124e..e29dd52e28 100644 --- a/lib/Target/PowerPC/README.txt +++ b/lib/Target/PowerPC/README.txt @@ -551,3 +551,12 @@ void func(unsigned int *ret, float dx, float dy, float dz, float dw) { ===-------------------------------------------------------------------------=== +extract_vector_elt of an arbitrary constant vector can be done with the +following instructions: + +vTemp = vec_splat(v0,2); // 2 is the element the src is in. +vec_ste(&destloc,0,vTemp); + +We can do an arbitrary non-constant value by using lvsr/perm/ste. + +===-------------------------------------------------------------------------=== |