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[RISCV] Add support of Sscofpmf (#83831)
This is used in profile, but somehow we missed it.
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‎clang/test/Preprocessor/riscv-target-features.c‎

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@@ -29,6 +29,7 @@
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// CHECK-NOT: __riscv_smepmp {{.*$}}
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// CHECK-NOT: __riscv_ssaia {{.*$}}
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// CHECK-NOT: __riscv_ssccptr {{.*$}}
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// CHECK-NOT: __riscv_sscofpmf {{.*$}}
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// CHECK-NOT: __riscv_sscounterenw {{.*$}}
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// CHECK-NOT: __riscv_ssstateen {{.*$}}
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// CHECK-NOT: __riscv_ssstrict {{.*$}}
@@ -351,6 +352,14 @@
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// RUN: -o - | FileCheck --check-prefix=CHECK-SSCCPTR-EXT %s
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// CHECK-SSCCPTR-EXT: __riscv_ssccptr 1000000{{$}}
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// RUN: %clang --target=riscv32-unknown-linux-gnu \
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// RUN: -march=rv32isscofpmf -E -dM %s \
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// RUN: -o - | FileCheck --check-prefix=CHECK-SSCOFPMF-EXT %s
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// RUN: %clang --target=riscv64-unknown-linux-gnu \
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// RUN: -march=rv64isscofpmf -E -dM %s \
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// RUN: -o - | FileCheck --check-prefix=CHECK-SSCOFPMF-EXT %s
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// CHECK-SSCOFPMF-EXT: __riscv_sscofpmf 1000000{{$}}
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// RUN: %clang --target=riscv32-unknown-linux-gnu \
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// RUN: -march=rv32isscounterenw -E -dM %s \
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// RUN: -o - | FileCheck --check-prefix=CHECK-SSCOUNTERENW-EXT %s

‎llvm/docs/RISCVUsage.rst‎

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@@ -101,6 +101,7 @@ on support follow.
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``Smepmp`` Supported
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``Ssaia`` Supported
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``Ssccptr`` Assembly Support (`See note <#riscv-profiles-extensions-note>`__)
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``Sscofpmf`` Assembly Support (`See note <#riscv-profiles-extensions-note>`__)
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``Sscounterenw`` Assembly Support (`See note <#riscv-profiles-extensions-note>`__)
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``Ssstateen`` Assembly Support (`See note <#riscv-profiles-extensions-note>`__)
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``Ssstrict`` Assembly Support (`See note <#riscv-profiles-extensions-note>`__)
@@ -234,7 +235,7 @@ Supported
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.. _riscv-profiles-extensions-note:
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``Za128rs``, ``Za64rs``, ``Zic64b``, ``Ziccamoa``, ``Ziccif``, ``Zicclsm``, ``Ziccrse``, ``Shcounterenvw``, ``Shgatpa``, ``Shtvala``, ``Shvsatpa``, ``Shvstvala``, ``Shvstvecd``, ``Ssccptr``, ``Sscounterenw``, ``Ssstateen``, ``Ssstrict``, ``Sstvala``, ``Sstvecd``, ``Ssu64xl``, ``Svade``, ``Svbare``
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``Za128rs``, ``Za64rs``, ``Zic64b``, ``Ziccamoa``, ``Ziccif``, ``Zicclsm``, ``Ziccrse``, ``Shcounterenvw``, ``Shgatpa``, ``Shtvala``, ``Shvsatpa``, ``Shvstvala``, ``Shvstvecd``, ``Ssccptr``, ``Sscofpmf``, ``Sscounterenw``, ``Ssstateen``, ``Ssstrict``, ``Sstvala``, ``Sstvecd``, ``Ssu64xl``, ``Svade``, ``Svbare``
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These extensions are defined as part of the `RISC-V Profiles specification <https://github.com/riscv/riscv-profiles/releases/tag/v1.0>`__. They do not introduce any new features themselves, but instead describe existing hardware features.
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.. _riscv-zacas-note:

‎llvm/lib/Support/RISCVISAInfo.cpp‎

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@@ -65,6 +65,7 @@ static const RISCVSupportedExtension SupportedExtensions[] = {
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{"smepmp", {1, 0}},
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{"ssaia", {1, 0}},
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{"ssccptr", {1, 0}},
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{"sscofpmf", {1, 0}},
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{"sscounterenw", {1, 0}},
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{"ssstateen", {1, 0}},
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{"ssstrict", {1, 0}},

‎llvm/lib/Target/RISCV/RISCVFeatures.td‎

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@@ -807,6 +807,9 @@ def FeatureStdExtSsccptr
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: SubtargetFeature<"ssccptr", "HasStdExtSsccptr", "true",
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"'Ssccptr' (Main memory supports page table reads)", []>;
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def FeatureStdExtSscofpmf
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: SubtargetFeature<"sscofpmf", "HasStdExtSscofpmf", "true",
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"'Sscofpmf' (Count Overflow and Mode-Based Filtering)", []>;
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def FeatureStdExtShcounterenw
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: SubtargetFeature<"shcounterenw", "HasStdExtShcounterenw", "true",
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"'Shcounterenw' (Support writeable hcounteren enable "

‎llvm/test/CodeGen/RISCV/attributes.ll‎

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@@ -42,6 +42,7 @@
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; RUN: llc -mtriple=riscv32 -mattr=+shgatpa %s -o - | FileCheck --check-prefixes=CHECK,RV32SHGATPA %s
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; RUN: llc -mtriple=riscv32 -mattr=+shvsatpa %s -o - | FileCheck --check-prefixes=CHECK,RV32SHVSATPA %s
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; RUN: llc -mtriple=riscv32 -mattr=+ssccptr %s -o - | FileCheck --check-prefixes=CHECK,RV32SSCCPTR %s
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; RUN: llc -mtriple=riscv32 -mattr=+sscofpmf %s -o - | FileCheck --check-prefixes=CHECK,RV32SSCOFPMF %s
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; RUN: llc -mtriple=riscv32 -mattr=+sscounterenw %s -o - | FileCheck --check-prefixes=CHECK,RV32SSCOUNTERENW %s
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; RUN: llc -mtriple=riscv32 -mattr=+ssstateen %s -o - | FileCheck --check-prefixes=CHECK,RV32SSSTATEEN %s
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; RUN: llc -mtriple=riscv32 -mattr=+ssstrict %s -o - | FileCheck --check-prefixes=CHECK,RV32SSSTRICT %s
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; RUN: llc -mtriple=riscv64 -mattr=+shgatpa %s -o - | FileCheck --check-prefixes=CHECK,RV64SHGATPA %s
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; RUN: llc -mtriple=riscv64 -mattr=+shvsatpa %s -o - | FileCheck --check-prefixes=CHECK,RV64SHVSATPA %s
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; RUN: llc -mtriple=riscv64 -mattr=+ssccptr %s -o - | FileCheck --check-prefixes=CHECK,RV64SSCCPTR %s
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; RUN: llc -mtriple=riscv64 -mattr=+sscofpmf %s -o - | FileCheck --check-prefixes=CHECK,RV64SSCOFPMF %s
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; RUN: llc -mtriple=riscv64 -mattr=+sscounterenw %s -o - | FileCheck --check-prefixes=CHECK,RV64SSCOUNTERENW %s
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; RUN: llc -mtriple=riscv64 -mattr=+ssstateen %s -o - | FileCheck --check-prefixes=CHECK,RV64SSSTATEEN %s
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; RUN: llc -mtriple=riscv64 -mattr=+ssstrict %s -o - | FileCheck --check-prefixes=CHECK,RV64SSSTRICT %s
@@ -295,6 +297,7 @@
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; RV32SHGATPA: .attribute 5, "rv32i2p1_shgatpa1p0"
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; RV32SHVSATPA: .attribute 5, "rv32i2p1_shvsatpa1p0"
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; RV32SSCCPTR: .attribute 5, "rv32i2p1_ssccptr1p0"
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; RV32SSCOFPMF: .attribute 5, "rv32i2p1_sscofpmf1p0"
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; RV32SSCOUNTERENW: .attribute 5, "rv32i2p1_sscounterenw1p0"
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; RV32SSSTATEEN: .attribute 5, "rv32i2p1_ssstateen1p0"
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; RV32SSSTRICT: .attribute 5, "rv32i2p1_ssstrict1p0"
@@ -421,6 +424,7 @@
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; RV64SHGATPA: .attribute 5, "rv64i2p1_shgatpa1p0"
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; RV64SHVSATPA: .attribute 5, "rv64i2p1_shvsatpa1p0"
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; RV64SSCCPTR: .attribute 5, "rv64i2p1_ssccptr1p0"
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; RV64SSCOFPMF: .attribute 5, "rv64i2p1_sscofpmf1p0"
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; RV64SSCOUNTERENW: .attribute 5, "rv64i2p1_sscounterenw1p0"
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; RV64SSSTATEEN: .attribute 5, "rv64i2p1_ssstateen1p0"
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; RV64SSSTRICT: .attribute 5, "rv64i2p1_ssstrict1p0"

‎llvm/test/MC/RISCV/attribute-arch.s‎

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.attribute arch, "rv32i_ssccptr1p0"
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# CHECK: attribute 5, "rv32i2p1_ssccptr1p0"
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.attribute arch, "rv32i_sscofpmf1p0"
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# CHECK: attribute 5, "rv32i2p1_sscofpmf1p0"
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.attribute arch, "rv32i_sscounterenw1p0"
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# CHECK: attribute 5, "rv32i2p1_sscounterenw1p0"
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‎llvm/unittests/Support/RISCVISAInfoTest.cpp‎

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@@ -830,6 +830,7 @@ R"(All available -march extensions for RISC-V
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smepmp 1.0
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ssaia 1.0
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ssccptr 1.0
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sscofpmf 1.0
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sscounterenw 1.0
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ssstateen 1.0
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ssstrict 1.0

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