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| author | Zakk Chen <zakk.chen@sifive.com> | 2019-11-28 18:00:54 -0800 |
|---|---|---|
| committer | Hans Wennborg <hans@chromium.org> | 2020-01-27 19:07:09 +0100 |
| commit | 72882ca30d87bd7ea85d8099e8b9d2244749b71e (patch) | |
| tree | 08dc97948df36efcacf5742a1152fce2504eb57b /llvm/lib/Target/RISCV/RISCVISelLowering.cpp | |
| parent | 4d342b7d8e9bc6f40001011b51b5ad812535c4a6 (diff) | |
| download | bcm5719-llvm-72882ca30d87bd7ea85d8099e8b9d2244749b71e.tar.gz bcm5719-llvm-72882ca30d87bd7ea85d8099e8b9d2244749b71e.zip | |
[RISCV] Support ABI checking with per function target-features
1. if users don't specific -mattr, the default target-feature come
from IR attribute.
2. fixed bug and re-land this patch
Reviewers: lenary, asb
Reviewed By: lenary
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D70837
(cherry picked from commit 0cb274de397a193fb37c60653b336d48a3a4f1bd)
Diffstat (limited to 'llvm/lib/Target/RISCV/RISCVISelLowering.cpp')
| -rw-r--r-- | llvm/lib/Target/RISCV/RISCVISelLowering.cpp | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/llvm/lib/Target/RISCV/RISCVISelLowering.cpp b/llvm/lib/Target/RISCV/RISCVISelLowering.cpp index 0b1fd382366..5a2cffbc824 100644 --- a/llvm/lib/Target/RISCV/RISCVISelLowering.cpp +++ b/llvm/lib/Target/RISCV/RISCVISelLowering.cpp @@ -51,6 +51,20 @@ RISCVTargetLowering::RISCVTargetLowering(const TargetMachine &TM, RISCVABI::ABI ABI = Subtarget.getTargetABI(); assert(ABI != RISCVABI::ABI_Unknown && "Improperly initialised target ABI"); + if ((ABI == RISCVABI::ABI_ILP32F || ABI == RISCVABI::ABI_LP64F) && + !Subtarget.hasStdExtF()) { + errs() << "Hard-float 'f' ABI can't be used for a target that " + "doesn't support the F instruction set extension (ignoring " + "target-abi)\n"; + ABI = Subtarget.is64Bit() ? RISCVABI::ABI_LP64 : RISCVABI::ABI_ILP32; + } else if ((ABI == RISCVABI::ABI_ILP32D || ABI == RISCVABI::ABI_LP64D) && + !Subtarget.hasStdExtD()) { + errs() << "Hard-float 'd' ABI can't be used for a target that " + "doesn't support the D instruction set extension (ignoring " + "target-abi)\n"; + ABI = Subtarget.is64Bit() ? RISCVABI::ABI_LP64 : RISCVABI::ABI_ILP32; + } + switch (ABI) { default: report_fatal_error("Don't know how to lower this ABI"); |
