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Hal Finkel 2bea947207 [PowerPC] Don't mark the return-address slot as immutable
It is tempting to mark the fixed stack slot used to store the return address as
immutable when lowering @llvm.returnaddress(i32 0). Unfortunately, within the
function, it is not completely immutable: it is written during the function
prologue. When using post-RA instruction scheduling, the prologue instructions
are available for scheduling, and we're not free to interchange the order of a
particular store in the prologue with loads from that stack location.

Fixes PR21976.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@224761 91177308-0d34-0410-b5e6-96231b3b80d8
2014-12-23 09:45:06 +00:00
autoconf
bindings Go bindings: introduce Value.ConstantAsMetadata. 2014-12-13 02:25:57 +00:00
cmake [cmake] Unbreak LLVM-Config.cmake / llvm_expand_dependencies. 2014-12-18 23:56:52 +00:00
docs IR: Make metadata typeless in assembly 2014-12-15 19:07:53 +00:00
examples
include Fix UBSan bootstrap: don't bind reference to nullptr. 2014-12-23 04:15:47 +00:00
lib [PowerPC] Don't mark the return-address slot as immutable 2014-12-23 09:45:06 +00:00
projects
test [PowerPC] Don't mark the return-address slot as immutable 2014-12-23 09:45:06 +00:00
tools strnlen isn't available on some platforms, use StringRef instead 2014-12-20 08:24:43 +00:00
unittests [C API] Expose LLVMGetGlobalValueAddress and LLVMGetFunctionAddress. 2014-12-22 18:53:11 +00:00
utils Use iterators rather than indices to make this forwards-compatible with a change to the underlying container (to std::list) 2014-12-22 21:26:38 +00:00
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CODE_OWNERS.TXT Add myself as SystemZ code owner 2014-12-18 19:27:50 +00:00
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CREDITS.TXT Rise from the dead and update personal info 2014-08-25 17:51:04 +00:00
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Low Level Virtual Machine (LLVM)
================================

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