From b4b95dee3140e7302d6889173386083978611a12 Mon Sep 17 00:00:00 2001 From: YunQiang Su Date: Mon, 6 Feb 2023 20:36:11 -0800 Subject: [PATCH] MIPS: fix build from IR files, nan2008 and FpAbi When we use llc or lld to compiler IR files, the features +nan2008 and +fpxx/+fp64 are not used. Thus wrong format files are produced. In IR files, the attributes are only set for function while not the whole compile units. So we extract the attributes from the first function and use it for the whole unit. isFPXXDefault: for o32, the FPXX should always be the default, no matter about the vendors. Of course some distributions with FP64 default enabled should be listed explicit. Let's add them in future if we know about one. Reviewed By: MaskRay Differential Revision: https://reviews.llvm.org/D140270 --- clang/lib/Driver/ToolChains/Arch/Mips.cpp | 5 ----- clang/test/Driver/mips-as.c | 10 +++++----- clang/test/Driver/mips-integrated-as.s | 6 +++--- llvm/lib/Target/Mips/MipsAsmPrinter.cpp | 10 +++++++--- llvm/test/CodeGen/Mips/abiflags-2008-fp64.ll | 18 ++++++++++++++++++ 5 files changed, 33 insertions(+), 16 deletions(-) create mode 100644 llvm/test/CodeGen/Mips/abiflags-2008-fp64.ll diff --git a/clang/lib/Driver/ToolChains/Arch/Mips.cpp b/clang/lib/Driver/ToolChains/Arch/Mips.cpp index 088eecf..7da00a8 100644 --- a/clang/lib/Driver/ToolChains/Arch/Mips.cpp +++ b/clang/lib/Driver/ToolChains/Arch/Mips.cpp @@ -467,11 +467,6 @@ bool mips::isFP64ADefault(const llvm::Triple &Triple, StringRef CPUName) { bool mips::isFPXXDefault(const llvm::Triple &Triple, StringRef CPUName, StringRef ABIName, mips::FloatABI FloatABI) { - if (Triple.getVendor() != llvm::Triple::ImaginationTechnologies && - Triple.getVendor() != llvm::Triple::MipsTechnologies && - !Triple.isAndroid()) - return false; - if (ABIName != "32") return false; diff --git a/clang/test/Driver/mips-as.c b/clang/test/Driver/mips-as.c index f4add63..14fbb18 100644 --- a/clang/test/Driver/mips-as.c +++ b/clang/test/Driver/mips-as.c @@ -196,7 +196,7 @@ // RUN: %clang -target mips-linux-gnu -mno-mips16 -mips16 -### \ // RUN: -no-integrated-as -fno-pic -c %s 2>&1 \ // RUN: | FileCheck -check-prefix=MIPS-16 %s -// MIPS-16: as{{(.exe)?}}" "-march" "mips32r2" "-mabi" "32" "-mno-shared" "-call_nonpic" "-EB" "-mips16" +// MIPS-16: as{{(.exe)?}}" "-march" "mips32r2" "-mabi" "32" "-mno-shared" "-call_nonpic" "-EB" "-mfpxx" "-mips16" // // RUN: %clang -target mips-linux-gnu -mips16 -mno-mips16 -### \ // RUN: -no-integrated-as -fno-pic -c %s 2>&1 \ @@ -207,7 +207,7 @@ // RUN: %clang -target mips-linux-gnu -mno-micromips -mmicromips -### \ // RUN: -no-integrated-as -fno-pic -c %s 2>&1 \ // RUN: | FileCheck -check-prefix=MIPS-MICRO %s -// MIPS-MICRO: as{{(.exe)?}}" "-march" "mips32r2" "-mabi" "32" "-mno-shared" "-call_nonpic" "-EB" "-mmicromips" +// MIPS-MICRO: as{{(.exe)?}}" "-march" "mips32r2" "-mabi" "32" "-mno-shared" "-call_nonpic" "-EB" "-mfpxx" "-mmicromips" // // RUN: %clang -target mips-linux-gnu -mmicromips -mno-micromips -### \ // RUN: -no-integrated-as -fno-pic -c %s 2>&1 \ @@ -218,7 +218,7 @@ // RUN: %clang -target mips-linux-gnu -mno-dsp -mdsp -### \ // RUN: -no-integrated-as -fno-pic -c %s 2>&1 \ // RUN: | FileCheck -check-prefix=MIPS-DSP %s -// MIPS-DSP: as{{(.exe)?}}" "-march" "mips32r2" "-mabi" "32" "-mno-shared" "-call_nonpic" "-EB" "-mdsp" +// MIPS-DSP: as{{(.exe)?}}" "-march" "mips32r2" "-mabi" "32" "-mno-shared" "-call_nonpic" "-EB" "-mfpxx" "-mdsp" // // RUN: %clang -target mips-linux-gnu -mdsp -mno-dsp -### \ // RUN: -no-integrated-as -fno-pic -c %s 2>&1 \ @@ -229,7 +229,7 @@ // RUN: %clang -target mips-linux-gnu -mno-dspr2 -mdspr2 -### \ // RUN: -no-integrated-as -fno-pic -c %s 2>&1 \ // RUN: | FileCheck -check-prefix=MIPS-DSPR2 %s -// MIPS-DSPR2: as{{(.exe)?}}" "-march" "mips32r2" "-mabi" "32" "-mno-shared" "-call_nonpic" "-EB" "-mdspr2" +// MIPS-DSPR2: as{{(.exe)?}}" "-march" "mips32r2" "-mabi" "32" "-mno-shared" "-call_nonpic" "-EB" "-mfpxx" "-mdspr2" // // RUN: %clang -target mips-linux-gnu -mdspr2 -mno-dspr2 -### \ // RUN: -no-integrated-as -fno-pic -c %s 2>&1 \ @@ -266,7 +266,7 @@ // RUN: %clang -target mips-linux-gnu -mno-msa -mmsa -### \ // RUN: -no-integrated-as -fno-pic -c %s 2>&1 \ // RUN: | FileCheck -check-prefix=MIPS-MSA %s -// MIPS-MSA: as{{(.exe)?}}" "-march" "mips32r2" "-mabi" "32" "-mno-shared" "-call_nonpic" "-EB" "-mmsa" +// MIPS-MSA: as{{(.exe)?}}" "-march" "mips32r2" "-mabi" "32" "-mno-shared" "-call_nonpic" "-EB" "-mfpxx" "-mmsa" // // RUN: %clang -target mips-linux-gnu -mmsa -mno-msa -### \ // RUN: -no-integrated-as -fno-pic -c %s 2>&1 \ diff --git a/clang/test/Driver/mips-integrated-as.s b/clang/test/Driver/mips-integrated-as.s index 46ce5b6..e248ba7 100644 --- a/clang/test/Driver/mips-integrated-as.s +++ b/clang/test/Driver/mips-integrated-as.s @@ -160,8 +160,8 @@ // RUN: %clang -target mips-linux-gnu -### -fintegrated-as -c %s 2>&1 | \ // RUN: FileCheck -check-prefix=FPXX-DEFAULT %s // FPXX-DEFAULT: -cc1as -// FPXX-DEFAULT-NOT: "-target-feature" "+fpxx" -// FPXX-DEFAULT-NOT: "-target-feature" "+nooddspreg" +// FPXX-DEFAULT: "-target-feature" "+fpxx" +// FPXX-DEFAULT: "-target-feature" "+nooddspreg" // RUN: %clang -target mips-linux-gnu -### -fintegrated-as -c %s -mfp32 2>&1 | \ // RUN: FileCheck -check-prefix=FP32 %s @@ -182,7 +182,7 @@ // RUN: %clang -target mips-linux-gnu -### -fintegrated-as -c %s 2>&1 | \ // RUN: FileCheck -check-prefix=ODDSPREG-DEFAULT %s // ODDSPREG-DEFAULT: -cc1as -// ODDSPREG-DEFAULT-NOT: "-target-feature" "{{[+-]}}nooddspreg" +// ODDSPREG-DEFAULT: "-target-feature" "+nooddspreg" // RUN: %clang -target mips-linux-gnu -### -fintegrated-as -c %s -modd-spreg 2>&1 | \ // RUN: FileCheck -check-prefix=ODDSPREG-ON %s diff --git a/llvm/lib/Target/Mips/MipsAsmPrinter.cpp b/llvm/lib/Target/Mips/MipsAsmPrinter.cpp index dd0b384f..f08e18b 100644 --- a/llvm/lib/Target/Mips/MipsAsmPrinter.cpp +++ b/llvm/lib/Target/Mips/MipsAsmPrinter.cpp @@ -777,14 +777,18 @@ void MipsAsmPrinter::emitStartOfAsmFile(Module &M) { // around it by re-initializing the PIC state here. TS.setPic(OutContext.getObjectFileInfo()->isPositionIndependent()); + // Try to get target-features from the first function. + StringRef FS = TM.getTargetFeatureString(); + Module::iterator F = M.begin(); + if (FS.empty() && M.size() && F->hasFnAttribute("target-features")) + FS = F->getFnAttribute("target-features").getValueAsString(); + // Compute MIPS architecture attributes based on the default subtarget - // that we'd have constructed. Module level directives aren't LTO - // clean anyhow. + // that we'd have constructed. // FIXME: For ifunc related functions we could iterate over and look // for a feature string that doesn't match the default one. const Triple &TT = TM.getTargetTriple(); StringRef CPU = MIPS_MC::selectMipsCPU(TT, TM.getTargetCPU()); - StringRef FS = TM.getTargetFeatureString(); const MipsTargetMachine &MTM = static_cast(TM); const MipsSubtarget STI(TT, CPU, FS, MTM.isLittleEndian(), MTM, std::nullopt); diff --git a/llvm/test/CodeGen/Mips/abiflags-2008-fp64.ll b/llvm/test/CodeGen/Mips/abiflags-2008-fp64.ll new file mode 100644 index 0000000..45def84 --- /dev/null +++ b/llvm/test/CodeGen/Mips/abiflags-2008-fp64.ll @@ -0,0 +1,18 @@ +;; When we compile object with "-flto", the info of "-mnan=2008" +;; and "-mfp32/-mfpxx/-mfp64" will be missing in the result IR file. +;; Thus the asm/obj files will have wrong format. +;; With D140270 we extract these info from the first function, +;; and set it for the whole compile unit. +; RUN: llc %s -o - | FileCheck %s + +target triple = "mipsel-unknown-linux-gnu" + +define dso_local void @test() #0 { + ret void +} + +attributes #0 = { "target-cpu"="mips32r2" "target-features"="+fp64,+mips32r2,+nan2008" } + + +; CHECK: .nan 2008 +; CHECK: .module fp=64 -- 2.7.4