[PATCH] D145883: [Flang][RISCV] Emit target features for RISC-V

[Shao-Ce SUN via Phabricator via cfe-commits]

sunshaoce updated this revision to Diff 504672.
sunshaoce marked an inline comment as done.
sunshaoce added a comment.

Address @awarzynski's comment. Thanks!


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D145883/new/

https://reviews.llvm.org/D145883

Files:
  clang/lib/Driver/ToolChains/Flang.cpp
  flang/test/Driver/code-gen-rv64.f90
  flang/test/Driver/target-cpu-features.f90


Index: flang/test/Driver/target-cpu-features.f90
===================================================================
--- flang/test/Driver/target-cpu-features.f90
+++ flang/test/Driver/target-cpu-features.f90
@@ -22,6 +22,9 @@
 ! RUN: %flang --target=x86_64h-linux-gnu -c %s -### 2>&1 \
 ! RUN: | FileCheck %s -check-prefix=CHECK-X86_64H
 
+! RUN: %flang --target=riscv64-linux-gnu -c %s -### 2>&1 \
+! RUN: | FileCheck %s -check-prefix=CHECK-RV64
+
 
 ! Test that invalid cpu and features are ignored.
 
@@ -52,5 +55,9 @@
 ! CHECK-X86_64H: "-fc1" "-triple" "x86_64h-unknown-linux-gnu"
 ! CHECK-X86_64H-SAME: "-target-cpu" "x86-64" "-target-feature" "-rdrnd" "-target-feature" "-aes" "-target-feature" "-pclmul" "-target-feature" "-rtm" "-target-feature" "-fsgsbase"
 
+! CHECK-RV64: "-fc1" "-triple" "riscv64-unknown-linux-gnu"
+! CHECK-RV64-SAME: "-target-cpu" "generic-rv64" "-target-feature" "+m" "-target-feature" "+a" "-target-feature" "+f" "-target-feature" "+d" "-target-feature" "+c"
+
+
 ! CHECK-INVALID-CPU: 'supercpu' is not a recognized processor for this target (ignoring processor)
 ! CHECK-INVALID-FEATURE: '+superspeed' is not a recognized feature for this target (ignoring feature)
Index: flang/test/Driver/code-gen-rv64.f90
===================================================================
--- /dev/null
+++ flang/test/Driver/code-gen-rv64.f90
@@ -0,0 +1,14 @@
+! Test -emit-obj (RISC-V 64)
+
+! RUN: rm -f %t.o
+! RUN: %flang_fc1 -triple riscv64-unknown-linux-gnu \
+! RUN:   -target-feature +d -target-feature +c -emit-obj %s -o %t.o
+! RUN: llvm-readelf -h %t.o | FileCheck %s
+
+! RUN: rm -f %t.o
+! RUN: %flang --target=riscv64-unknown-linux-gnu -c %s -o %t.o
+! RUN: llvm-readelf -h %t.o | FileCheck %s
+
+! If Flang failed to emit target-feature info, then Flags will be 0x0.
+! CHECK: Flags: 0x5, RVC, double-float ABI
+end program
Index: clang/lib/Driver/ToolChains/Flang.cpp
===================================================================
--- clang/lib/Driver/ToolChains/Flang.cpp
+++ clang/lib/Driver/ToolChains/Flang.cpp
@@ -106,6 +106,8 @@
     break;
   case llvm::Triple::aarch64:
     [[fallthrough]];
+  case llvm::Triple::riscv64:
+    [[fallthrough]];
   case llvm::Triple::x86_64:
     getTargetFeatures(D, Triple, Args, CmdArgs, /*ForAs*/ false);
     break;


-------------- next part --------------
A non-text attachment was scrubbed...
Name: D145883.504672.patch
Type: text/x-patch
Size: 2305 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/cfe-commits/attachments/20230313/a4e00096/attachment-0001.bin>