[clang] [llvm] [RISCV] Use Sha extension in RVA23S64 profile (PR #113823)

via cfe-commits cfe-commits at lists.llvm.org
Sun Oct 27 09:34:18 PDT 2024


llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang

Author: Alex Bradbury (asb)

<details>
<summary>Changes</summary>

Stacks on top of #<!-- -->113820

In the ratified version of the RVA23S64 definition, the Sha extension is
now used to group together the set of hypervisor related extensions.

<https://github.com/riscv/riscv-profiles/blob/main/src/rva23-profile.adoc>


---
Full diff: https://github.com/llvm/llvm-project/pull/113823.diff


8 Files Affected:

- (modified) clang/test/Driver/print-supported-extensions-riscv.c (+1) 
- (modified) clang/test/Preprocessor/riscv-target-features.c (+9) 
- (modified) llvm/docs/RISCVUsage.rst (+1) 
- (modified) llvm/docs/ReleaseNotes.md (+1) 
- (modified) llvm/lib/Target/RISCV/RISCVFeatures.td (+7) 
- (modified) llvm/lib/Target/RISCV/RISCVProfiles.td (+1-8) 
- (modified) llvm/test/CodeGen/RISCV/attributes.ll (+5-1) 
- (modified) llvm/unittests/TargetParser/RISCVISAInfoTest.cpp (+1) 


``````````diff
diff --git a/clang/test/Driver/print-supported-extensions-riscv.c b/clang/test/Driver/print-supported-extensions-riscv.c
index 342d6e921a5a83..fc8a9c04667b6b 100644
--- a/clang/test/Driver/print-supported-extensions-riscv.c
+++ b/clang/test/Driver/print-supported-extensions-riscv.c
@@ -110,6 +110,7 @@
 // CHECK-NEXT:     zvl8192b             1.0       'Zvl' (Minimum Vector Length) 8192
 // CHECK-NEXT:     zhinx                1.0       'Zhinx' (Half Float in Integer)
 // CHECK-NEXT:     zhinxmin             1.0       'Zhinxmin' (Half Float in Integer Minimal)
+// CHECK-NEXT:     sha                  1.0       'Sha' (Augmented Hypervisor)
 // CHECK-NEXT:     shcounterenw         1.0       'Shcounterenw' (Support writeable hcounteren enable bit for any hpmcounter that is not read-only zero)
 // CHECK-NEXT:     shgatpa              1.0       'Sgatpa' (SvNNx4 mode supported for all modes supported by satp, as well as Bare)
 // CHECK-NEXT:     shtvala              1.0       'Shtvala' (htval provides all needed values)
diff --git a/clang/test/Preprocessor/riscv-target-features.c b/clang/test/Preprocessor/riscv-target-features.c
index 98ad564d2b8408..6e586714af84d3 100644
--- a/clang/test/Preprocessor/riscv-target-features.c
+++ b/clang/test/Preprocessor/riscv-target-features.c
@@ -20,6 +20,7 @@
 // CHECK-NOT: __riscv_m {{.*$}}
 // CHECK-NOT: __riscv_mul {{.*$}}
 // CHECK-NOT: __riscv_muldiv {{.*$}}
+// CHECK-NOT: __riscv_sha {{.*$}}
 // CHECK-NOT: __riscv_shcounterenw {{.*$}}
 // CHECK-NOT: __riscv_shgatpa {{.*$}}
 // CHECK-NOT: __riscv_shtvala {{.*$}}
@@ -323,6 +324,14 @@
 // CHECK-M-EXT: __riscv_mul 1
 // CHECK-M-EXT: __riscv_muldiv 1
 
+// RUN: %clang --target=riscv32-unknown-linux-gnu \
+// RUN:   -march=rv32isha -E -dM %s \
+// RUN:   -o - | FileCheck --check-prefix=CHECK-SHCOUNTERENW-EXT %s
+// RUN: %clang --target=riscv64-unknown-linux-gnu \
+// RUN:   -march=rv64isha -E -dM %s \
+// RUN:   -o - | FileCheck --check-prefix=CHECK-SHCOUNTERENW-EXT %s
+// CHECK-SHA-EXT: __riscv_sha 1000000{{$}}
+
 // RUN: %clang --target=riscv32-unknown-linux-gnu \
 // RUN:   -march=rv32ishcounterenw -E -dM %s \
 // RUN:   -o - | FileCheck --check-prefix=CHECK-SHCOUNTERENW-EXT %s
diff --git a/llvm/docs/RISCVUsage.rst b/llvm/docs/RISCVUsage.rst
index ab58cdaa1b2f95..6075a2289d473d 100644
--- a/llvm/docs/RISCVUsage.rst
+++ b/llvm/docs/RISCVUsage.rst
@@ -119,6 +119,7 @@ on support follow.
      ``E``             Supported (`See note <#riscv-rve-note>`__)
      ``H``             Assembly Support
      ``M``             Supported
+     ``Sha``           Supported
      ``Shcounterenw``  Assembly Support (`See note <#riscv-profiles-extensions-note>`__)
      ``Shgatpa``       Assembly Support (`See note <#riscv-profiles-extensions-note>`__)
      ``Shtvala``       Assembly Support (`See note <#riscv-profiles-extensions-note>`__)
diff --git a/llvm/docs/ReleaseNotes.md b/llvm/docs/ReleaseNotes.md
index e3d93f0dfd0ec5..6ee312aee8c53c 100644
--- a/llvm/docs/ReleaseNotes.md
+++ b/llvm/docs/ReleaseNotes.md
@@ -176,6 +176,7 @@ Changes to the RISC-V Backend
 * The `Zacas` extension is no longer marked as experimental.
 * The `Smmpm`, `Smnpm`, `Ssnpm`, `Supm`, and `Sspm` pointer masking extensions
   are no longer marked as experimental.
+* The `Sha` extension is now supported.
 
 Changes to the WebAssembly Backend
 ----------------------------------
diff --git a/llvm/lib/Target/RISCV/RISCVFeatures.td b/llvm/lib/Target/RISCV/RISCVFeatures.td
index 778df542022f22..559f0e5950eddd 100644
--- a/llvm/lib/Target/RISCV/RISCVFeatures.td
+++ b/llvm/lib/Target/RISCV/RISCVFeatures.td
@@ -1029,6 +1029,13 @@ def FeatureStdExtSvpbmt
     : RISCVExtension<"svpbmt", 1, 0,
                      "'Svpbmt' (Page-Based Memory Types)">;
 
+def FeatureStdExtSha
+    : RISCVExtension<"sha", 1, 0,
+                     "'Sha' (Augmented Hypervisor)",
+                     [FeatureStdExtH, FeatureStdExtSsstateen, FeatureStdExtShcounterenw,
+                      FeatureStdExtShvstvala, FeatureStdExtShtvala, FeatureStdExtShvstvecd,
+                      FeatureStdExtShvsatpa, FeatureStdExtShgatpa]>;
+
 // Pointer Masking extensions
 
 // A supervisor-level extension that provides pointer masking for the next lower
diff --git a/llvm/lib/Target/RISCV/RISCVProfiles.td b/llvm/lib/Target/RISCV/RISCVProfiles.td
index ce7d1973989fc1..78c076fdb0b26e 100644
--- a/llvm/lib/Target/RISCV/RISCVProfiles.td
+++ b/llvm/lib/Target/RISCV/RISCVProfiles.td
@@ -82,14 +82,7 @@ defvar RVA23S64BaseFeatures = !listconcat(RVA22S64BaseFeatures,
                                            FeatureStdExtSscofpmf,
                                            FeatureStdExtSsnpm,
                                            FeatureStdExtSsu64xl,
-                                           FeatureStdExtH,
-                                           FeatureStdExtSsstateen,
-                                           FeatureStdExtShcounterenw,
-                                           FeatureStdExtShvstvala,
-                                           FeatureStdExtShtvala,
-                                           FeatureStdExtShvstvecd,
-                                           FeatureStdExtShvsatpa,
-                                           FeatureStdExtShgatpa]);
+                                           FeatureStdExtSha]);
 defvar RVA23S64Features = !listconcat(RVA23U64Features,
                                       RVA23S64BaseFeatures);
 
diff --git a/llvm/test/CodeGen/RISCV/attributes.ll b/llvm/test/CodeGen/RISCV/attributes.ll
index 9be9ddd05ee290..5c835befd6f505 100644
--- a/llvm/test/CodeGen/RISCV/attributes.ll
+++ b/llvm/test/CodeGen/RISCV/attributes.ll
@@ -39,6 +39,7 @@
 ; RUN: llc -mtriple=riscv32 -mattr=+zicbom %s -o - | FileCheck --check-prefixes=CHECK,RV32ZICBOM %s
 ; RUN: llc -mtriple=riscv32 -mattr=+zicboz %s -o - | FileCheck --check-prefixes=CHECK,RV32ZICBOZ %s
 ; RUN: llc -mtriple=riscv32 -mattr=+zicbop %s -o - | FileCheck --check-prefixes=CHECK,RV32ZICBOP %s
+; RUN: llc -mtriple=riscv32 -mattr=+sha %s -o - | FileCheck --check-prefixes=CHECK,RV32SHA %s
 ; RUN: llc -mtriple=riscv32 -mattr=+shcounterenw %s -o - | FileCheck --check-prefixes=CHECK,RV32SHCOUNTERENW %s
 ; RUN: llc -mtriple=riscv32 -mattr=+shgatpa %s -o - | FileCheck --check-prefixes=CHECK,RV32SHGATPA %s
 ; RUN: llc -mtriple=riscv32 -mattr=+shvsatpa %s -o - | FileCheck --check-prefixes=CHECK,RV32SHVSATPA %s
@@ -178,6 +179,7 @@
 ; RUN: llc -mtriple=riscv64 -mattr=+zicbom %s -o - | FileCheck --check-prefixes=CHECK,RV64ZICBOM %s
 ; RUN: llc -mtriple=riscv64 -mattr=+zicboz %s -o - | FileCheck --check-prefixes=CHECK,RV64ZICBOZ %s
 ; RUN: llc -mtriple=riscv64 -mattr=+zicbop %s -o - | FileCheck --check-prefixes=CHECK,RV64ZICBOP %s
+; RUN: llc -mtriple=riscv64 -mattr=+sha %s -o - | FileCheck --check-prefixes=CHECK,RV64SHA %s
 ; RUN: llc -mtriple=riscv64 -mattr=+shcounterenw %s -o - | FileCheck --check-prefixes=CHECK,RV64SHCOUNTERENW %s
 ; RUN: llc -mtriple=riscv64 -mattr=+shgatpa %s -o - | FileCheck --check-prefixes=CHECK,RV64SHGATPA %s
 ; RUN: llc -mtriple=riscv64 -mattr=+shvsatpa %s -o - | FileCheck --check-prefixes=CHECK,RV64SHVSATPA %s
@@ -333,6 +335,7 @@
 ; RV32ZICBOM: .attribute 5, "rv32i2p1_zicbom1p0"
 ; RV32ZICBOZ: .attribute 5, "rv32i2p1_zicboz1p0"
 ; RV32ZICBOP: .attribute 5, "rv32i2p1_zicbop1p0"
+; RV32SHA: .attribute 5, "rv32i2p1_h1p0_sha1p0_shcounterenw1p0_shgatpa1p0_shtvala1p0_shvsatpa1p0_shvstvala1p0_shvstvecd1p0_ssstateen1p0"
 ; RV32SHCOUNTERENW: .attribute 5, "rv32i2p1_shcounterenw1p0"
 ; RV32SHGATPA: .attribute 5, "rv32i2p1_shgatpa1p0"
 ; RV32SHVSATPA: .attribute 5, "rv32i2p1_shvsatpa1p0"
@@ -474,6 +477,7 @@
 ; RV64ZAMA16B: .attribute 5, "rv64i2p1_zama16b1p0"
 ; RV64ZAWRS: .attribute 5, "rv64i2p1_zawrs1p0"
 ; RV64ZICBOP: .attribute 5, "rv64i2p1_zicbop1p0"
+; RV64SHA: .attribute 5, "rv64i2p1_h1p0_sha1p0_shcounterenw1p0_shgatpa1p0_shtvala1p0_shvsatpa1p0_shvstvala1p0_shvstvecd1p0_ssstateen1p0"
 ; RV64SHCOUNTERENW: .attribute 5, "rv64i2p1_shcounterenw1p0"
 ; RV64SHGATPA: .attribute 5, "rv64i2p1_shgatpa1p0"
 ; RV64SHVSATPA: .attribute 5, "rv64i2p1_shvsatpa1p0"
@@ -579,7 +583,7 @@
 ; RVA22U64: .attribute 5, "rv64i2p1_m2p0_a2p1_f2p2_d2p2_c2p0_zic64b1p0_zicbom1p0_zicbop1p0_zicboz1p0_ziccamoa1p0_ziccif1p0_zicclsm1p0_ziccrse1p0_zicntr2p0_zicsr2p0_zihintpause2p0_zihpm2p0_zmmul1p0_za64rs1p0_zfhmin1p0_zba1p0_zbb1p0_zbs1p0_zkt1p0"
 ; RVA22S64: .attribute 5, "rv64i2p1_m2p0_a2p1_f2p2_d2p2_c2p0_zic64b1p0_zicbom1p0_zicbop1p0_zicboz1p0_ziccamoa1p0_ziccif1p0_zicclsm1p0_ziccrse1p0_zicntr2p0_zicsr2p0_zifencei2p0_zihintpause2p0_zihpm2p0_zmmul1p0_za64rs1p0_zfhmin1p0_zba1p0_zbb1p0_zbs1p0_zkt1p0_ssccptr1p0_sscounterenw1p0_sstvala1p0_sstvecd1p0_svade1p0_svbare1p0_svinval1p0_svpbmt1p0"
 ; RVA23U64: .attribute 5, "rv64i2p1_m2p0_a2p1_f2p2_d2p2_c2p0_v1p0_zic64b1p0_zicbom1p0_zicbop1p0_zicboz1p0_ziccamoa1p0_ziccif1p0_zicclsm1p0_ziccrse1p0_zicntr2p0_zicond1p0_zicsr2p0_zihintntl1p0_zihintpause2p0_zihpm2p0_zimop1p0_zmmul1p0_za64rs1p0_zawrs1p0_zfa1p0_zfhmin1p0_zca1p0_zcb1p0_zcmop1p0_zba1p0_zbb1p0_zbs1p0_zkt1p0_zvbb1p0_zve32f1p0_zve32x1p0_zve64d1p0_zve64f1p0_zve64x1p0_zvfhmin1p0_zvkb1p0_zvkt1p0_zvl128b1p0_zvl32b1p0_zvl64b1p0_supm1p0"
-; RVA23S64: .attribute 5, "rv64i2p1_m2p0_a2p1_f2p2_d2p2_c2p0_v1p0_h1p0_zic64b1p0_zicbom1p0_zicbop1p0_zicboz1p0_ziccamoa1p0_ziccif1p0_zicclsm1p0_ziccrse1p0_zicntr2p0_zicond1p0_zicsr2p0_zifencei2p0_zihintntl1p0_zihintpause2p0_zihpm2p0_zimop1p0_zmmul1p0_za64rs1p0_zawrs1p0_zfa1p0_zfhmin1p0_zca1p0_zcb1p0_zcmop1p0_zba1p0_zbb1p0_zbs1p0_zkt1p0_zvbb1p0_zve32f1p0_zve32x1p0_zve64d1p0_zve64f1p0_zve64x1p0_zvfhmin1p0_zvkb1p0_zvkt1p0_zvl128b1p0_zvl32b1p0_zvl64b1p0_shcounterenw1p0_shgatpa1p0_shtvala1p0_shvsatpa1p0_shvstvala1p0_shvstvecd1p0_ssccptr1p0_sscofpmf1p0_sscounterenw1p0_ssnpm1p0_ssstateen1p0_sstc1p0_sstvala1p0_sstvecd1p0_ssu64xl1p0_supm1p0_svade1p0_svbare1p0_svinval1p0_svnapot1p0_svpbmt1p0"
+; RVA23S64: .attribute 5, "rv64i2p1_m2p0_a2p1_f2p2_d2p2_c2p0_v1p0_h1p0_zic64b1p0_zicbom1p0_zicbop1p0_zicboz1p0_ziccamoa1p0_ziccif1p0_zicclsm1p0_ziccrse1p0_zicntr2p0_zicond1p0_zicsr2p0_zifencei2p0_zihintntl1p0_zihintpause2p0_zihpm2p0_zimop1p0_zmmul1p0_za64rs1p0_zawrs1p0_zfa1p0_zfhmin1p0_zca1p0_zcb1p0_zcmop1p0_zba1p0_zbb1p0_zbs1p0_zkt1p0_zvbb1p0_zve32f1p0_zve32x1p0_zve64d1p0_zve64f1p0_zve64x1p0_zvfhmin1p0_zvkb1p0_zvkt1p0_zvl128b1p0_zvl32b1p0_zvl64b1p0_sha1p0_shcounterenw1p0_shgatpa1p0_shtvala1p0_shvsatpa1p0_shvstvala1p0_shvstvecd1p0_ssccptr1p0_sscofpmf1p0_sscounterenw1p0_ssnpm1p0_ssstateen1p0_sstc1p0_sstvala1p0_sstvecd1p0_ssu64xl1p0_supm1p0_svade1p0_svbare1p0_svinval1p0_svnapot1p0_svpbmt1p0"
 ; RVB23U64: .attribute 5, "rv64i2p1_m2p0_a2p1_f2p2_d2p2_c2p0_zic64b1p0_zicbom1p0_zicbop1p0_zicboz1p0_ziccamoa1p0_ziccif1p0_zicclsm1p0_ziccrse1p0_zicntr2p0_zicond1p0_zicsr2p0_zihintntl1p0_zihintpause2p0_zihpm2p0_zimop1p0_zmmul1p0_za64rs1p0_zawrs1p0_zfa1p0_zca1p0_zcb1p0_zcmop1p0_zba1p0_zbb1p0_zbs1p0_zkt1p0"
 ; RVB23S64: .attribute 5, "rv64i2p1_m2p0_a2p1_f2p2_d2p2_c2p0_zic64b1p0_zicbom1p0_zicbop1p0_zicboz1p0_ziccamoa1p0_ziccif1p0_zicclsm1p0_ziccrse1p0_zicntr2p0_zicond1p0_zicsr2p0_zifencei2p0_zihintntl1p0_zihintpause2p0_zihpm2p0_zimop1p0_zmmul1p0_za64rs1p0_zawrs1p0_zfa1p0_zca1p0_zcb1p0_zcmop1p0_zba1p0_zbb1p0_zbs1p0_zkt1p0_ssccptr1p0_sscofpmf1p0_sscounterenw1p0_sstc1p0_sstvala1p0_sstvecd1p0_ssu64xl1p0_svade1p0_svbare1p0_svinval1p0_svnapot1p0_svpbmt1p0"
 ; RVM23U32: .attribute 5, "rv32i2p1_m2p0_zicbop1p0_zicond1p0_zicsr2p0_zihintntl1p0_zihintpause2p0_zimop1p0_zmmul1p0_zca1p0_zcb1p0_zce1p0_zcmop1p0_zcmp1p0_zcmt1p0_zba1p0_zbb1p0_zbs1p0"
diff --git a/llvm/unittests/TargetParser/RISCVISAInfoTest.cpp b/llvm/unittests/TargetParser/RISCVISAInfoTest.cpp
index 2e9c548ae872f3..e402b1a40de34d 100644
--- a/llvm/unittests/TargetParser/RISCVISAInfoTest.cpp
+++ b/llvm/unittests/TargetParser/RISCVISAInfoTest.cpp
@@ -1055,6 +1055,7 @@ R"(All available -march extensions for RISC-V
     zvl8192b             1.0
     zhinx                1.0
     zhinxmin             1.0
+    sha                  1.0
     shcounterenw         1.0
     shgatpa              1.0
     shtvala              1.0

``````````

</details>


https://github.com/llvm/llvm-project/pull/113823


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