https://llvm.org/bugs/show_bug.cgi?id=30714
Bug ID: 30714
Summary: [MIPS] Emitted instructions do not meet their
predicates
Product: new-bugs
Version: trunk
Hardware: PC
OS: All
Status: NEW
Severity: normal
Priority: P
Component: new bugs
Assignee: unassignedb...@nondot.org
Reporter: simon.dar...@imgtec.com
CC: llvm-bugs@lists.llvm.org
Classification: Unclassified
Certain instructions can be emitted in cases where they do not meet their
predicates.
See: https://reviews.llvm.org/D25618 and https://reviews.llvm.org/D25622
Quoting D25622:
The following tests fail when this patch is applied.
Failing Tests (26):
LLVM :: CodeGen/Mips/cconv/callee-saved-float.ll
LLVM :: CodeGen/Mips/micromips-atomic1.ll
LLVM :: CodeGen/Mips/tailcall/tailcall-wrong-isa.ll
LLVM :: MC/Mips/cprestore-noreorder.s
LLVM :: MC/Mips/cprestore-reorder.s
LLVM :: MC/Mips/elf_eflags_mips16.s
LLVM :: MC/Mips/expansion-jal-sym-pic.s
LLVM :: MC/Mips/expr1.s
LLVM :: MC/Mips/micromips-16-bit-instructions.s
LLVM :: MC/Mips/micromips-alu-instructions.s
LLVM :: MC/Mips/micromips-branch-fixup.s
LLVM :: MC/Mips/micromips-branch-instructions.s
LLVM :: MC/Mips/micromips-control-instructions.s
LLVM :: MC/Mips/micromips-dsp/valid-micromips32r3.s
LLVM :: MC/Mips/micromips-el-fixup-data.s
LLVM :: MC/Mips/micromips-expansions.s
LLVM :: MC/Mips/micromips-fpu-instructions.s
LLVM :: MC/Mips/micromips-jump-instructions.s
LLVM :: MC/Mips/micromips-jump26.s
LLVM :: MC/Mips/micromips-tailr.s
LLVM :: MC/Mips/micromips/valid.s
LLVM :: MC/Mips/micromips32r6/valid.s
LLVM :: MC/Mips/mips2/valid.s
LLVM :: MC/Mips/mips3/valid.s
LLVM :: MC/Mips/mips4/valid.s
LLVM :: MC/Mips/mips5/valid.s
Some look like bugs but others look like they are deliberate (e.g.
SYNC is using a loophole to implement the MIPS-II version as an
alias of the MIPS32 version).
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