[clang] [llvm] [RISCV] Add Smcsrind and Sscsrind extension (PR #93952)

via cfe-commits cfe-commits at lists.llvm.org
Tue Jun 11 12:05:12 PDT 2024


https://github.com/YanWQ-monad updated https://github.com/llvm/llvm-project/pull/93952

>From 3e0d38aa84506cd364174190893cb62008948a87 Mon Sep 17 00:00:00 2001
From: YanWQ-monad <YanWQmonad at gmail.com>
Date: Fri, 31 May 2024 16:11:43 +0800
Subject: [PATCH 1/3] [RISCV] add smcsrind and sscsrind extension

---
 .../test/Preprocessor/riscv-target-features.c  | 18 ++++++++++++++++++
 llvm/docs/RISCVUsage.rst                       |  2 ++
 llvm/lib/Target/RISCV/RISCVFeatures.td         |  7 +++++++
 llvm/test/CodeGen/RISCV/attributes.ll          |  8 ++++++++
 llvm/test/MC/RISCV/attribute-arch.s            |  6 ++++++
 .../TargetParser/RISCVISAInfoTest.cpp          |  2 ++
 6 files changed, 43 insertions(+)

diff --git a/clang/test/Preprocessor/riscv-target-features.c b/clang/test/Preprocessor/riscv-target-features.c
index 0865add7e8fb8..ed8effd3fe44b 100644
--- a/clang/test/Preprocessor/riscv-target-features.c
+++ b/clang/test/Preprocessor/riscv-target-features.c
@@ -26,12 +26,14 @@
 // CHECK-NOT: __riscv_shvstvala {{.*$}}
 // CHECK-NOT: __riscv_shvstvecd {{.*$}}
 // CHECK-NOT: __riscv_smaia {{.*$}}
+// CHECK-NOT: __riscv_smcsrind {{.*$}}
 // CHECK-NOT: __riscv_smepmp {{.*$}}
 // CHECK-NOT: __riscv_smstateen {{.*$}}
 // CHECK-NOT: __riscv_ssaia {{.*$}}
 // CHECK-NOT: __riscv_ssccptr {{.*$}}
 // CHECK-NOT: __riscv_sscofpmf {{.*$}}
 // CHECK-NOT: __riscv_sscounterenw {{.*$}}
+// CHECK-NOT: __riscv_sscsrind {{.*$}}
 // CHECK-NOT: __riscv_ssstateen {{.*$}}
 // CHECK-NOT: __riscv_ssstrict {{.*$}}
 // CHECK-NOT: __riscv_sstc {{.*$}}
@@ -1373,6 +1375,22 @@
 // RUN:   -o - | FileCheck --check-prefix=CHECK-SSAIA-EXT %s
 // CHECK-SSAIA-EXT: __riscv_ssaia  1000000{{$}}
 
+// RUN: %clang --target=riscv32 \
+// RUN:   -march=rv32ismcsrind1p0 -E -dM %s \
+// RUN:   -o - | FileCheck --check-prefix=CHECK-SMCSRIND-EXT %s
+// RUN: %clang --target=riscv64 \
+// RUN:   -march=rv64ismcsrind1p0 -E -dM %s \
+// RUN:   -o - | FileCheck --check-prefix=CHECK-SMCSRIND-EXT %s
+// CHECK-SMCSRIND-EXT: __riscv_smcsrind  1000000{{$}}
+
+// RUN: %clang --target=riscv32 \
+// RUN:   -march=rv32isscsrind1p0 -E -dM %s \
+// RUN:   -o - | FileCheck --check-prefix=CHECK-SSCSRIND-EXT %s
+// RUN: %clang --target=riscv64 \
+// RUN:   -march=rv64isscsrind1p0 -E -dM %s \
+// RUN:   -o - | FileCheck --check-prefix=CHECK-SSCSRIND-EXT %s
+// CHECK-SSCSRIND-EXT: __riscv_sscsrind  1000000{{$}}
+
 // RUN: %clang --target=riscv32 \
 // RUN:   -march=rv32ismepmp1p0 -E -dM %s \
 // RUN:   -o - | FileCheck --check-prefix=CHECK-SMEPMP-EXT %s
diff --git a/llvm/docs/RISCVUsage.rst b/llvm/docs/RISCVUsage.rst
index 5ecee2a480f7d..9411f1176836c 100644
--- a/llvm/docs/RISCVUsage.rst
+++ b/llvm/docs/RISCVUsage.rst
@@ -98,12 +98,14 @@ on support follow.
      ``Shvstvala``     Assembly Support (`See note <#riscv-profiles-extensions-note>`__)
      ``Shvstvecd``     Assembly Support (`See note <#riscv-profiles-extensions-note>`__)
      ``Smaia``         Supported
+     ``Smcsrind``      Supported
      ``Smepmp``        Supported
      ``Smstateen``     Assembly Support
      ``Ssaia``         Supported
      ``Ssccptr``       Assembly Support (`See note <#riscv-profiles-extensions-note>`__)
      ``Sscofpmf``      Assembly Support
      ``Sscounterenw``  Assembly Support (`See note <#riscv-profiles-extensions-note>`__)
+     ``Sscsrind``      Supported
      ``Ssstateen``     Assembly Support (`See note <#riscv-profiles-extensions-note>`__)
      ``Ssstrict``      Assembly Support (`See note <#riscv-profiles-extensions-note>`__)
      ``Sstc``          Assembly Support
diff --git a/llvm/lib/Target/RISCV/RISCVFeatures.td b/llvm/lib/Target/RISCV/RISCVFeatures.td
index a78d78946be31..898e46f0e2004 100644
--- a/llvm/lib/Target/RISCV/RISCVFeatures.td
+++ b/llvm/lib/Target/RISCV/RISCVFeatures.td
@@ -847,6 +847,13 @@ def FeatureStdExtSsaia
                      "'Ssaia' (Advanced Interrupt Architecture Supervisor "
                      "Level)">;
 
+def FeatureStdExtSmcsrind
+    : RISCVExtension<"smcsrind", 1, 0,
+                     "'Smcsrind' (Indirect CSR Access Machine Level)">;
+def FeatureStdExtSscsrind
+    : RISCVExtension<"sscsrind", 1, 0,
+                     "'Sscsrind' (Indirect CSR Access Supervisor Level)">;
+
 def FeatureStdExtSmepmp
     : RISCVExtension<"smepmp", 1, 0,
                      "'Smepmp' (Enhanced Physical Memory Protection)">;
diff --git a/llvm/test/CodeGen/RISCV/attributes.ll b/llvm/test/CodeGen/RISCV/attributes.ll
index c90bb031e082f..ebb3166ced04e 100644
--- a/llvm/test/CodeGen/RISCV/attributes.ll
+++ b/llvm/test/CodeGen/RISCV/attributes.ll
@@ -110,6 +110,8 @@
 ; RUN: llc -mtriple=riscv32 -mattr=+zcmop %s -o - | FileCheck --check-prefix=RV32ZCMOP %s
 ; RUN: llc -mtriple=riscv32 -mattr=+smaia %s -o - | FileCheck --check-prefixes=CHECK,RV32SMAIA %s
 ; RUN: llc -mtriple=riscv32 -mattr=+ssaia %s -o - | FileCheck --check-prefixes=CHECK,RV32SSAIA %s
+; RUN: llc -mtriple=riscv32 -mattr=+smcsrind %s -o - | FileCheck --check-prefixes=CHECK,RV32SMCSRIND %s
+; RUN: llc -mtriple=riscv32 -mattr=+sscsrind %s -o - | FileCheck --check-prefixes=CHECK,RV32SSCSRIND %s
 ; RUN: llc -mtriple=riscv32 -mattr=+smepmp %s -o - | FileCheck --check-prefixes=CHECK,RV32SMEPMP %s
 ; RUN: llc -mtriple=riscv32 -mattr=+experimental-zfbfmin %s -o - | FileCheck --check-prefixes=CHECK,RV32ZFBFMIN %s
 ; RUN: llc -mtriple=riscv32 -mattr=+experimental-zvfbfmin %s -o - | FileCheck --check-prefixes=CHECK,RV32ZVFBFMIN %s
@@ -243,6 +245,8 @@
 ; RUN: llc -mtriple=riscv64 -mattr=+zcmop %s -o - | FileCheck --check-prefix=RV64ZCMOP %s
 ; RUN: llc -mtriple=riscv64 -mattr=+smaia %s -o - | FileCheck --check-prefixes=CHECK,RV64SMAIA %s
 ; RUN: llc -mtriple=riscv64 -mattr=+ssaia %s -o - | FileCheck --check-prefixes=CHECK,RV64SSAIA %s
+; RUN: llc -mtriple=riscv64 -mattr=+smcsrind %s -o - | FileCheck --check-prefixes=CHECK,RV64SMCSRIND %s
+; RUN: llc -mtriple=riscv64 -mattr=+sscsrind %s -o - | FileCheck --check-prefixes=CHECK,RV64SSCSRIND %s
 ; RUN: llc -mtriple=riscv64 -mattr=+smepmp %s -o - | FileCheck --check-prefixes=CHECK,RV64SMEPMP %s
 ; RUN: llc -mtriple=riscv64 -mattr=+experimental-zfbfmin %s -o - | FileCheck --check-prefixes=CHECK,RV64ZFBFMIN %s
 ; RUN: llc -mtriple=riscv64 -mattr=+experimental-zvfbfmin %s -o - | FileCheck --check-prefixes=CHECK,RV64ZVFBFMIN %s
@@ -382,6 +386,8 @@
 ; RV32ZCMOP: .attribute 5, "rv32i2p1_zca1p0_zcmop1p0"
 ; RV32SMAIA: .attribute 5, "rv32i2p1_smaia1p0"
 ; RV32SSAIA: .attribute 5, "rv32i2p1_ssaia1p0"
+; RV32SMCSRIND: .attribute 5, "rv32i2p1_smcsrind1p0"
+; RV32SSCSRIND: .attribute 5, "rv32i2p1_sscsrind1p0"
 ; RV32SMEPMP: .attribute 5, "rv32i2p1_smepmp1p0"
 ; RV32ZFBFMIN: .attribute 5, "rv32i2p1_f2p2_zicsr2p0_zfbfmin1p0"
 ; RV32ZVFBFMIN: .attribute 5, "rv32i2p1_f2p2_zicsr2p0_zve32f1p0_zve32x1p0_zvfbfmin1p0_zvl32b1p0"
@@ -514,6 +520,8 @@
 ; RV64ZCMOP: .attribute 5, "rv64i2p1_zca1p0_zcmop1p0"
 ; RV64SMAIA: .attribute 5, "rv64i2p1_smaia1p0"
 ; RV64SSAIA: .attribute 5, "rv64i2p1_ssaia1p0"
+; RV64SMCSRIND: .attribute 5, "rv64i2p1_smcsrind1p0"
+; RV64SSCSRIND: .attribute 5, "rv64i2p1_sscsrind1p0"
 ; RV64SMEPMP: .attribute 5, "rv64i2p1_smepmp1p0"
 ; RV64ZFBFMIN: .attribute 5, "rv64i2p1_f2p2_zicsr2p0_zfbfmin1p0"
 ; RV64ZVFBFMIN: .attribute 5, "rv64i2p1_f2p2_zicsr2p0_zve32f1p0_zve32x1p0_zvfbfmin1p0_zvl32b1p0"
diff --git a/llvm/test/MC/RISCV/attribute-arch.s b/llvm/test/MC/RISCV/attribute-arch.s
index 0e5eddd83e408..702bb2df4cc4b 100644
--- a/llvm/test/MC/RISCV/attribute-arch.s
+++ b/llvm/test/MC/RISCV/attribute-arch.s
@@ -315,6 +315,12 @@
 .attribute arch, "rv32i_ssaia1p0"
 # CHECK: attribute      5, "rv32i2p1_ssaia1p0"
 
+.attribute arch, "rv32i_smcsrind1p0"
+# CHECK: attribute      5, "rv32i2p1_smcsrind1p0"
+
+.attribute arch, "rv32i_sscsrind1p0"
+# CHECK: attribute      5, "rv32i2p1_sscsrind1p0"
+
 .attribute arch, "rv32i_smepmp1p0"
 # CHECK: attribute      5, "rv32i2p1_smepmp1p0"
 
diff --git a/llvm/unittests/TargetParser/RISCVISAInfoTest.cpp b/llvm/unittests/TargetParser/RISCVISAInfoTest.cpp
index df40669800934..9641c99648ba0 100644
--- a/llvm/unittests/TargetParser/RISCVISAInfoTest.cpp
+++ b/llvm/unittests/TargetParser/RISCVISAInfoTest.cpp
@@ -1013,12 +1013,14 @@ R"(All available -march extensions for RISC-V
     shvstvala            1.0
     shvstvecd            1.0
     smaia                1.0
+    smcsrind             1.0
     smepmp               1.0
     smstateen            1.0
     ssaia                1.0
     ssccptr              1.0
     sscofpmf             1.0
     sscounterenw         1.0
+    sscsrind             1.0
     ssstateen            1.0
     ssstrict             1.0
     sstc                 1.0

>From 06cce4f67c540e5e2237260110618a1ad2ca552f Mon Sep 17 00:00:00 2001
From: YanWQ-monad <YanWQmonad at gmail.com>
Date: Fri, 31 May 2024 20:28:57 +0800
Subject: [PATCH 2/3] [RISCV] Update release notes

---
 llvm/docs/ReleaseNotes.rst | 1 +
 1 file changed, 1 insertion(+)

diff --git a/llvm/docs/ReleaseNotes.rst b/llvm/docs/ReleaseNotes.rst
index c7c2c2825f58b..dbea7042dc841 100644
--- a/llvm/docs/ReleaseNotes.rst
+++ b/llvm/docs/ReleaseNotes.rst
@@ -136,6 +136,7 @@ Changes to the RISC-V Backend
 * Added smstateen extension to -march. CSR names for smstateen were already supported.
 * Zaamo and Zalrsc are no longer experimental.
 * Processors that enable post reg-alloc scheduling (PostMachineScheduler) by default should use the `UsePostRAScheduler` subtarget feature. Setting `PostRAScheduler = 1` in the scheduler model will have no effect on the enabling of the PostMachineScheduler.
+* Added smcsrind and sscsrind extensions to -march. CSR names for them were already supported.
 
 Changes to the WebAssembly Backend
 ----------------------------------

>From f601aa3ce2db52349ce5735d8e489fa5fd3cb558 Mon Sep 17 00:00:00 2001
From: YanWQ-monad <YanWQmonad at gmail.com>
Date: Wed, 12 Jun 2024 03:04:44 +0800
Subject: [PATCH 3/3] [RISCV] Add CSRs

---
 llvm/lib/Target/RISCV/RISCVSystemOperands.td | 18 +++++
 llvm/test/MC/RISCV/hypervisor-csr-names.s    | 70 ++++++++++++++++++++
 llvm/test/MC/RISCV/machine-csr-names.s       | 70 ++++++++++++++++++++
 llvm/test/MC/RISCV/supervisor-csr-names.s    | 70 ++++++++++++++++++++
 4 files changed, 228 insertions(+)

diff --git a/llvm/lib/Target/RISCV/RISCVSystemOperands.td b/llvm/lib/Target/RISCV/RISCVSystemOperands.td
index 01c2767119502..c5bb2290c1b94 100644
--- a/llvm/lib/Target/RISCV/RISCVSystemOperands.td
+++ b/llvm/lib/Target/RISCV/RISCVSystemOperands.td
@@ -377,6 +377,12 @@ def SEED : SysReg<"seed", 0x015>;
 // Machine-level CSRs
 def : SysReg<"miselect", 0x350>;
 def : SysReg<"mireg", 0x351>;
+foreach i = 2...3 in {
+  def : SysReg<"mireg"#i, !add(0x350, i)>;
+}
+foreach i = 4...6 in {
+  def : SysReg<"mireg"#i, !add(0x351, i)>;
+}
 def : SysReg<"mtopei", 0x35C>;
 def : SysReg<"mtopi", 0xFB0>;
 def : SysReg<"mvien", 0x308>;
@@ -392,6 +398,12 @@ def : SysReg<"miph", 0x354>;
 // Supervisor-level CSRs
 def : SysReg<"siselect", 0x150>;
 def : SysReg<"sireg", 0x151>;
+foreach i = 2...3 in {
+  def : SysReg<"sireg"#i, !add(0x150, i)>;
+}
+foreach i = 4...6 in {
+  def : SysReg<"sireg"#i, !add(0x151, i)>;
+}
 def : SysReg<"stopei", 0x15C>;
 def : SysReg<"stopi", 0xDB0>;
 let isRV32Only = 1 in {
@@ -406,6 +418,12 @@ def : SysReg<"hviprio1", 0x646>;
 def : SysReg<"hviprio2", 0x647>;
 def : SysReg<"vsiselect", 0x250>;
 def : SysReg<"vsireg", 0x251>;
+foreach i = 2...3 in {
+  def : SysReg<"vsireg"#i, !add(0x250, i)>;
+}
+foreach i = 4...6 in {
+  def : SysReg<"vsireg"#i, !add(0x251, i)>;
+}
 def : SysReg<"vstopei", 0x25C>;
 def : SysReg<"vstopi", 0xEB0>;
 let isRV32Only = 1 in {
diff --git a/llvm/test/MC/RISCV/hypervisor-csr-names.s b/llvm/test/MC/RISCV/hypervisor-csr-names.s
index fed803c39e00d..950570c74746a 100644
--- a/llvm/test/MC/RISCV/hypervisor-csr-names.s
+++ b/llvm/test/MC/RISCV/hypervisor-csr-names.s
@@ -536,6 +536,76 @@ csrrs t1, vsireg, zero
 # uimm12
 csrrs t2, 0x251, zero
 
+# vsireg2
+# name
+# CHECK-INST: csrrs t1, vsireg2, zero
+# CHECK-ENC: encoding: [0x73,0x23,0x20,0x25]
+# CHECK-INST-ALIAS: csrr t1, vsireg2
+# uimm12
+# CHECK-INST: csrrs t2, vsireg2, zero
+# CHECK-ENC: encoding: [0xf3,0x23,0x20,0x25]
+# CHECK-INST-ALIAS: csrr t2, vsireg2
+# name
+csrrs t1, vsireg2, zero
+# uimm12
+csrrs t2, 0x252, zero
+
+# vsireg3
+# name
+# CHECK-INST: csrrs t1, vsireg3, zero
+# CHECK-ENC: encoding: [0x73,0x23,0x30,0x25]
+# CHECK-INST-ALIAS: csrr t1, vsireg3
+# uimm12
+# CHECK-INST: csrrs t2, vsireg3, zero
+# CHECK-ENC: encoding: [0xf3,0x23,0x30,0x25]
+# CHECK-INST-ALIAS: csrr t2, vsireg3
+# name
+csrrs t1, vsireg3, zero
+# uimm12
+csrrs t2, 0x253, zero
+
+# vsireg4
+# name
+# CHECK-INST: csrrs t1, vsireg4, zero
+# CHECK-ENC: encoding: [0x73,0x23,0x50,0x25]
+# CHECK-INST-ALIAS: csrr t1, vsireg4
+# uimm12
+# CHECK-INST: csrrs t2, vsireg4, zero
+# CHECK-ENC: encoding: [0xf3,0x23,0x50,0x25]
+# CHECK-INST-ALIAS: csrr t2, vsireg4
+# name
+csrrs t1, vsireg4, zero
+# uimm12
+csrrs t2, 0x255, zero
+
+# vsireg5
+# name
+# CHECK-INST: csrrs t1, vsireg5, zero
+# CHECK-ENC: encoding: [0x73,0x23,0x60,0x25]
+# CHECK-INST-ALIAS: csrr t1, vsireg5
+# uimm12
+# CHECK-INST: csrrs t2, vsireg5, zero
+# CHECK-ENC: encoding: [0xf3,0x23,0x60,0x25]
+# CHECK-INST-ALIAS: csrr t2, vsireg5
+# name
+csrrs t1, vsireg5, zero
+# uimm12
+csrrs t2, 0x256, zero
+
+# vsireg6
+# name
+# CHECK-INST: csrrs t1, vsireg6, zero
+# CHECK-ENC: encoding: [0x73,0x23,0x70,0x25]
+# CHECK-INST-ALIAS: csrr t1, vsireg6
+# uimm12
+# CHECK-INST: csrrs t2, vsireg6, zero
+# CHECK-ENC: encoding: [0xf3,0x23,0x70,0x25]
+# CHECK-INST-ALIAS: csrr t2, vsireg6
+# name
+csrrs t1, vsireg6, zero
+# uimm12
+csrrs t2, 0x257, zero
+
 # vstopei
 # name
 # CHECK-INST: csrrs t1, vstopei, zero
diff --git a/llvm/test/MC/RISCV/machine-csr-names.s b/llvm/test/MC/RISCV/machine-csr-names.s
index 3b6d73b5118be..5f668aea00485 100644
--- a/llvm/test/MC/RISCV/machine-csr-names.s
+++ b/llvm/test/MC/RISCV/machine-csr-names.s
@@ -2443,6 +2443,76 @@ csrrs t1, mireg, zero
 # uimm12
 csrrs t2, 0x351, zero
 
+# mireg2
+# name
+# CHECK-INST: csrrs t1, mireg2, zero
+# CHECK-ENC: encoding: [0x73,0x23,0x20,0x35]
+# CHECK-INST-ALIAS: csrr t1, mireg2
+# uimm12
+# CHECK-INST: csrrs t2, mireg2, zero
+# CHECK-ENC: encoding: [0xf3,0x23,0x20,0x35]
+# CHECK-INST-ALIAS: csrr t2, mireg2
+# name
+csrrs t1, mireg2, zero
+# uimm12
+csrrs t2, 0x352, zero
+
+# mireg3
+# name
+# CHECK-INST: csrrs t1, mireg3, zero
+# CHECK-ENC: encoding: [0x73,0x23,0x30,0x35]
+# CHECK-INST-ALIAS: csrr t1, mireg3
+# uimm12
+# CHECK-INST: csrrs t2, mireg3, zero
+# CHECK-ENC: encoding: [0xf3,0x23,0x30,0x35]
+# CHECK-INST-ALIAS: csrr t2, mireg3
+# name
+csrrs t1, mireg3, zero
+# uimm12
+csrrs t2, 0x353, zero
+
+# mireg4
+# name
+# CHECK-INST: csrrs t1, mireg4, zero
+# CHECK-ENC: encoding: [0x73,0x23,0x50,0x35]
+# CHECK-INST-ALIAS: csrr t1, mireg4
+# uimm12
+# CHECK-INST: csrrs t2, mireg4, zero
+# CHECK-ENC: encoding: [0xf3,0x23,0x50,0x35]
+# CHECK-INST-ALIAS: csrr t2, mireg4
+# name
+csrrs t1, mireg4, zero
+# uimm12
+csrrs t2, 0x355, zero
+
+# mireg5
+# name
+# CHECK-INST: csrrs t1, mireg5, zero
+# CHECK-ENC: encoding: [0x73,0x23,0x60,0x35]
+# CHECK-INST-ALIAS: csrr t1, mireg5
+# uimm12
+# CHECK-INST: csrrs t2, mireg5, zero
+# CHECK-ENC: encoding: [0xf3,0x23,0x60,0x35]
+# CHECK-INST-ALIAS: csrr t2, mireg5
+# name
+csrrs t1, mireg5, zero
+# uimm12
+csrrs t2, 0x356, zero
+
+# mireg6
+# name
+# CHECK-INST: csrrs t1, mireg6, zero
+# CHECK-ENC: encoding: [0x73,0x23,0x70,0x35]
+# CHECK-INST-ALIAS: csrr t1, mireg6
+# uimm12
+# CHECK-INST: csrrs t2, mireg6, zero
+# CHECK-ENC: encoding: [0xf3,0x23,0x70,0x35]
+# CHECK-INST-ALIAS: csrr t2, mireg6
+# name
+csrrs t1, mireg6, zero
+# uimm12
+csrrs t2, 0x357, zero
+
 # mtopei
 # name
 # CHECK-INST: csrrs t1, mtopei, zero
diff --git a/llvm/test/MC/RISCV/supervisor-csr-names.s b/llvm/test/MC/RISCV/supervisor-csr-names.s
index 127812de4bdc9..e14c108353016 100644
--- a/llvm/test/MC/RISCV/supervisor-csr-names.s
+++ b/llvm/test/MC/RISCV/supervisor-csr-names.s
@@ -342,6 +342,76 @@ csrrs t1, sireg, zero
 # uimm12
 csrrs t2, 0x151, zero
 
+# sireg2
+# name
+# CHECK-INST: csrrs t1, sireg2, zero
+# CHECK-ENC: encoding: [0x73,0x23,0x20,0x15]
+# CHECK-INST-ALIAS: csrr t1, sireg2
+# uimm12
+# CHECK-INST: csrrs t2, sireg2, zero
+# CHECK-ENC: encoding: [0xf3,0x23,0x20,0x15]
+# CHECK-INST-ALIAS: csrr t2, sireg2
+# name
+csrrs t1, sireg2, zero
+# uimm12
+csrrs t2, 0x152, zero
+
+# sireg3
+# name
+# CHECK-INST: csrrs t1, sireg3, zero
+# CHECK-ENC: encoding: [0x73,0x23,0x30,0x15]
+# CHECK-INST-ALIAS: csrr t1, sireg3
+# uimm12
+# CHECK-INST: csrrs t2, sireg3, zero
+# CHECK-ENC: encoding: [0xf3,0x23,0x30,0x15]
+# CHECK-INST-ALIAS: csrr t2, sireg3
+# name
+csrrs t1, sireg3, zero
+# uimm12
+csrrs t2, 0x153, zero
+
+# sireg4
+# name
+# CHECK-INST: csrrs t1, sireg4, zero
+# CHECK-ENC: encoding: [0x73,0x23,0x50,0x15]
+# CHECK-INST-ALIAS: csrr t1, sireg4
+# uimm12
+# CHECK-INST: csrrs t2, sireg4, zero
+# CHECK-ENC: encoding: [0xf3,0x23,0x50,0x15]
+# CHECK-INST-ALIAS: csrr t2, sireg4
+# name
+csrrs t1, sireg4, zero
+# uimm12
+csrrs t2, 0x155, zero
+
+# sireg5
+# name
+# CHECK-INST: csrrs t1, sireg5, zero
+# CHECK-ENC: encoding: [0x73,0x23,0x60,0x15]
+# CHECK-INST-ALIAS: csrr t1, sireg5
+# uimm12
+# CHECK-INST: csrrs t2, sireg5, zero
+# CHECK-ENC: encoding: [0xf3,0x23,0x60,0x15]
+# CHECK-INST-ALIAS: csrr t2, sireg5
+# name
+csrrs t1, sireg5, zero
+# uimm12
+csrrs t2, 0x156, zero
+
+# sireg6
+# name
+# CHECK-INST: csrrs t1, sireg6, zero
+# CHECK-ENC: encoding: [0x73,0x23,0x70,0x15]
+# CHECK-INST-ALIAS: csrr t1, sireg6
+# uimm12
+# CHECK-INST: csrrs t2, sireg6, zero
+# CHECK-ENC: encoding: [0xf3,0x23,0x70,0x15]
+# CHECK-INST-ALIAS: csrr t2, sireg6
+# name
+csrrs t1, sireg6, zero
+# uimm12
+csrrs t2, 0x157, zero
+
 # stopei
 # name
 # CHECK-INST: csrrs t1, stopei, zero



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