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| author | Chris Lattner <sabre@nondot.org> | 2005-07-26 19:07:51 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2005-07-26 19:07:51 +0000 |
| commit | b65975a6ed58ee6696818e785bee49fcbe0b2a0c (patch) | |
| tree | 987b1e5a2975e2f68003a85e3f1dc8c67b945a51 | |
| parent | 2e00d7d0ae32a87ec978fc99849e718f1914279a (diff) | |
add a note about the red zone
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22518 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/PowerPC/README.txt | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/Target/PowerPC/README.txt b/lib/Target/PowerPC/README.txt index 386d21f3f9..b1d3028572 100644 --- a/lib/Target/PowerPC/README.txt +++ b/lib/Target/PowerPC/README.txt @@ -3,10 +3,12 @@ TODO: * implement do-loop -> bdnz transform * implement powerpc-64 for darwin * use stfiwx in float->int +* take advantage of the darwin red zone in PPC32RegisterInfo.cpp * be able to combine sequences like the following into 2 instructions: lis r2, ha16(l2__ZTV4Cell) la r2, lo16(l2__ZTV4Cell)(r2) addi r2, r2, 8 + * should hint to the branch select pass that it doesn't need to print the second unconditional branch, so we don't end up with things like: b .LBBl42__2E_expand_function_8_674 ; loopentry.24 |