Reviewers: ulan, rmcilroy, jochen,
Message:
This ports improvements and fixes to Printf that were made in VIXL 1.4.
Description:
ARM64: Fix and improve MacroAssembler::Printf.
- W-sized values passed to Printf are now handled correctly by the
simulator. In AAPCS64, int32_t and int64_t are passed in the same
way, so this didn't affect non-simulator builds.
- Since Printf now records the type and size of each argument, it is
possible to mix argument types.
- It is now possible to print the stack pointer. There is only one
remaining restriction: The `sp` register cannot be printed unless it
is the current stack pointer. This is because it is modified by
BumpSystemStackPointer when the caller-saved registers are
preserved.
BUG=
Please review this at https://codereview.chromium.org/268353005/
SVN Base: https://v8.googlecode.com/svn/branches/bleeding_edge
Affected files (+381, -212 lines):
M src/arm64/assembler-arm64.h
M src/arm64/assembler-arm64-inl.h
M src/arm64/instructions-arm64.h
M src/arm64/macro-assembler-arm64.h
M src/arm64/macro-assembler-arm64.cc
M src/arm64/simulator-arm64.h
M src/arm64/simulator-arm64.cc
M test/cctest/test-assembler-arm64.cc
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