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MIPS: Add flag for testing long branch mode.

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TEST=
BUG=
R=jkummerow@chromium.org, plind44@gmail.com

Review URL: https://codereview.chromium.org/173773003

Patch from Dusan Milosavljevic <Dusan.Milosavljevic@rt-rk.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19520 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This commit is contained in:
plind44@gmail.com 2014-02-20 21:03:26 +00:00
parent 5275240eba
commit b83da9f5c3
2 changed files with 5 additions and 2 deletions
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2
src/flag-definitions.h
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@ -398,6 +398,8 @@ DEFINE_bool(enable_32dregs, ENABLE_32DREGS_DEFAULT,
"enable use of d16-d31 registers on ARM - this requires VFP3") "enable use of d16-d31 registers on ARM - this requires VFP3")
DEFINE_bool(enable_vldr_imm, false, DEFINE_bool(enable_vldr_imm, false,
"enable use of constant pools for double immediate (ARM only)") "enable use of constant pools for double immediate (ARM only)")
DEFINE_bool(force_long_branches, false,
"force all emitted branches to be in long mode (MIPS only)")
// bootstrapper.cc // bootstrapper.cc
DEFINE_string(expose_natives_as, NULL, "expose natives in global object") DEFINE_string(expose_natives_as, NULL, "expose natives in global object")

5
src/mips/assembler-mips.cc
View File

@ -313,11 +313,12 @@ Assembler::Assembler(Isolate* isolate, void* buffer, int buffer_size)
trampoline_pool_blocked_nesting_ = 0; trampoline_pool_blocked_nesting_ = 0;
// We leave space (16 * kTrampolineSlotsSize) // We leave space (16 * kTrampolineSlotsSize)
// for BlockTrampolinePoolScope buffer. // for BlockTrampolinePoolScope buffer.
next_buffer_check_ = kMaxBranchOffset - kTrampolineSlotsSize * 16; next_buffer_check_ = FLAG_force_long_branches
? kMaxInt : kMaxBranchOffset - kTrampolineSlotsSize * 16;
internal_trampoline_exception_ = false; internal_trampoline_exception_ = false;
last_bound_pos_ = 0; last_bound_pos_ = 0;
trampoline_emitted_ = false; trampoline_emitted_ = FLAG_force_long_branches;
unbound_labels_count_ = 0; unbound_labels_count_ = 0;
block_buffer_growth_ = false; block_buffer_growth_ = false;