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[llvm-lib] Handle MIPS architecture (#121254)

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- add a test to check values for /machine argument
- add a test to check if machine is correctly inferred from inputs
This commit is contained in:
Hervé Poussineau 2025-01-05 08:18:05 +01:00 committed by GitHub
parent 6f69f8c9fe
commit c983ae8f26
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GPG Key ID: B5690EEEBB952194
5 changed files with 46 additions and 0 deletions
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2
llvm/lib/Object/WindowsMachineFlag.cpp
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@ -21,6 +21,7 @@ using namespace llvm;
// Returns /machine's value.
COFF::MachineTypes llvm::getMachineType(StringRef S) {
// Flags must be a superset of Microsoft lib.exe /machine flags.
return StringSwitch<COFF::MachineTypes>(S.lower())
.Cases("x64", "amd64", COFF::IMAGE_FILE_MACHINE_AMD64)
.Cases("x86", "i386", COFF::IMAGE_FILE_MACHINE_I386)
@ -28,6 +29,7 @@ COFF::MachineTypes llvm::getMachineType(StringRef S) {
.Case("arm64", COFF::IMAGE_FILE_MACHINE_ARM64)
.Case("arm64ec", COFF::IMAGE_FILE_MACHINE_ARM64EC)
.Case("arm64x", COFF::IMAGE_FILE_MACHINE_ARM64X)
.Case("mips", COFF::IMAGE_FILE_MACHINE_R4000)
.Default(COFF::IMAGE_FILE_MACHINE_UNKNOWN);
}

3
llvm/lib/ToolDrivers/llvm-lib/LibDriver.cpp
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@ -171,6 +171,7 @@ static Expected<COFF::MachineTypes> getCOFFFileMachine(MemoryBufferRef MB) {
uint16_t Machine = (*Obj)->getMachine();
if (Machine != COFF::IMAGE_FILE_MACHINE_I386 &&
Machine != COFF::IMAGE_FILE_MACHINE_AMD64 &&
Machine != COFF::IMAGE_FILE_MACHINE_R4000 &&
Machine != COFF::IMAGE_FILE_MACHINE_ARMNT && !COFF::isAnyArm64(Machine)) {
return createStringError(inconvertibleErrorCode(),
"unknown machine: " + std::to_string(Machine));
@ -195,6 +196,8 @@ static Expected<COFF::MachineTypes> getBitcodeFileMachine(MemoryBufferRef MB) {
case Triple::aarch64:
return T.isWindowsArm64EC() ? COFF::IMAGE_FILE_MACHINE_ARM64EC
: COFF::IMAGE_FILE_MACHINE_ARM64;
case Triple::mipsel:
return COFF::IMAGE_FILE_MACHINE_R4000;
default:
return createStringError(inconvertibleErrorCode(),
"unknown arch in target triple: " + *TripleStr);

7
llvm/test/tools/llvm-lib/Inputs/mips.ll Normal file
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@ -0,0 +1,7 @@
target triple = "mipsel-windows-coff"
; Function Attrs: noinline nounwind optnone
define dso_local void @"?f@@YAXXZ"() #0 {
entry:
ret void
}

21
llvm/test/tools/llvm-lib/infer-machine.test Normal file
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@ -0,0 +1,21 @@
REQUIRES: mips-registered-target
RUN: rm -rf %t && mkdir -p %t
RUN: llc -mtriple=i386-windows-coff -filetype=obj -o %t/i386.obj %S/Inputs/i386.ll
RUN: llvm-as %S/Inputs/i386.ll -o %t/i386.bc
RUN: llvm-lib %t/i386.obj %t/i386.bc /out:%t/i386.lib
RUN: llvm-objdump -h %t/i386.lib | FileCheck %s --check-prefix=I386
I386: file format coff-i386
RUN: llc -mtriple=x86_64-windows-coff -filetype=obj -o %t/x86_64.obj %S/Inputs/x86_64.ll
RUN: llvm-as %S/Inputs/x86_64.ll -o %t/x86_64.bc
RUN: llvm-lib %t/x86_64.obj %t/x86_64.bc /out:%t/x86_64.lib
RUN: llvm-objdump -h %t/x86_64.lib | FileCheck %s --check-prefix=X86_64
X86_64: file format coff-x86-64
RUN: llc -mtriple=mipsel-windows-coff -filetype=obj -o %t/mips.obj %S/Inputs/mips.ll
RUN: llvm-as %S/Inputs/mips.ll -o %t/mips.bc
RUN: llvm-lib %t/mips.obj %t/mips.bc /out:%t/mips.lib
RUN: llvm-objdump -h %t/mips.lib | FileCheck %s --check-prefix=MIPS
MIPS: file format coff-mips

13
llvm/test/tools/llvm-lib/machine-opt.test Normal file
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@ -0,0 +1,13 @@
RUN: rm -f %t.lib
RUN: llvm-lib /out:%t.lib /machine:i386 2>&1 | FileCheck --check-prefix=EMPTYWARN %s
RUN: llvm-lib /out:%t.lib /machine:amd64 2>&1 | FileCheck --check-prefix=EMPTYWARN %s
RUN: llvm-lib /out:%t.lib /machine:mips 2>&1 | FileCheck --check-prefix=EMPTYWARN %s
RUN: llvm-lib /out:%t.lib /machine:arm 2>&1 | FileCheck --check-prefix=EMPTYWARN %s
RUN: llvm-lib /out:%t.lib /machine:arm64 2>&1 | FileCheck --check-prefix=EMPTYWARN %s
RUN: llvm-lib /out:%t.lib /machine:arm64x 2>&1 | FileCheck --check-prefix=EMPTYWARN %s
EMPTYWARN: warning: no input files, not writing output file