diff options
| author | Jiaxun Yang <jiaxun.yang@flygoat.com> | 2020-05-12 12:40:05 +0800 |
|---|---|---|
| committer | Jiaxun Yang <jiaxun.yang@flygoat.com> | 2020-05-14 16:31:55 +0800 |
| commit | 4fc1cd5563bf3b7312ccd8317f296a8142ba2ff5 (patch) | |
| tree | aea6797e42091d18f925b8fc163018811da816e1 /js/src/jit/mips-shared/MacroAssembler-mips-shared.cpp | |
| parent | 4e2559d92f3f1238013b8d6e26e49632d13ba873 (diff) | |
| download | UXP-4fc1cd5563bf3b7312ccd8317f296a8142ba2ff5.tar UXP-4fc1cd5563bf3b7312ccd8317f296a8142ba2ff5.tar.gz UXP-4fc1cd5563bf3b7312ccd8317f296a8142ba2ff5.tar.lz UXP-4fc1cd5563bf3b7312ccd8317f296a8142ba2ff5.tar.xz UXP-4fc1cd5563bf3b7312ccd8317f296a8142ba2ff5.zip | |
Bug 1323136 - wasm: MIPS: Do bounds check in 32-bit
Tag: #1542
Diffstat (limited to 'js/src/jit/mips-shared/MacroAssembler-mips-shared.cpp')
| -rw-r--r-- | js/src/jit/mips-shared/MacroAssembler-mips-shared.cpp | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/js/src/jit/mips-shared/MacroAssembler-mips-shared.cpp b/js/src/jit/mips-shared/MacroAssembler-mips-shared.cpp index 18997e542..658cafd36 100644 --- a/js/src/jit/mips-shared/MacroAssembler-mips-shared.cpp +++ b/js/src/jit/mips-shared/MacroAssembler-mips-shared.cpp @@ -39,6 +39,17 @@ MacroAssemblerMIPSShared::ma_li(Register dest, Imm32 imm) } } +// This method generates lui and ori instruction pair that can be modified by +// UpdateLuiOriValue, either during compilation (eg. Assembler::bind), or +// during execution (eg. jit::PatchJump). +void +MacroAssemblerMIPSShared::ma_liPatchable(Register dest, Imm32 imm) +{ + m_buffer.ensureSpace(2 * sizeof(uint32_t)); + as_lui(dest, Imm16::Upper(imm).encode()); + as_ori(dest, dest, Imm16::Lower(imm).encode()); +} + // Shifts void MacroAssemblerMIPSShared::ma_sll(Register rd, Register rt, Imm32 shift) |