[clang] e15fb06 - [RISCV] Pass target-abi via module flag metadata

[Zakk Chen via cfe-commits]

Author: Zakk Chen
Date: 2020-01-20T23:30:54-08:00
New Revision: e15fb06e2d0a068de549464d72081811e7fac612

URL: https://github.com/llvm/llvm-project/commit/e15fb06e2d0a068de549464d72081811e7fac612
DIFF: https://github.com/llvm/llvm-project/commit/e15fb06e2d0a068de549464d72081811e7fac612.diff

LOG: [RISCV] Pass target-abi via module flag metadata

Reviewers: lenary, asb

Reviewed By: lenary

Tags: #clang

Differential Revision: https://reviews.llvm.org/D72755

Added: 
    clang/test/CodeGen/riscv-metadata.c

Modified: 
    clang/lib/CodeGen/CodeGenModule.cpp

Removed: 
    


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diff  --git a/clang/lib/CodeGen/CodeGenModule.cpp b/clang/lib/CodeGen/CodeGenModule.cpp
index 9e007b35df2c..1fede3445625 100644
--- a/clang/lib/CodeGen/CodeGenModule.cpp
+++ b/clang/lib/CodeGen/CodeGenModule.cpp
@@ -537,6 +537,13 @@ void CodeGenModule::Release() {
     getModule().addModuleFlag(llvm::Module::Error, "min_enum_size", EnumWidth);
   }
 
+  if (Arch == llvm::Triple::riscv32 || Arch == llvm::Triple::riscv64) {
+    StringRef ABIStr = Target.getABI();
+    llvm::LLVMContext &Ctx = TheModule.getContext();
+    getModule().addModuleFlag(llvm::Module::Error, "target-abi",
+                              llvm::MDString::get(Ctx, ABIStr));
+  }
+
   if (CodeGenOpts.SanitizeCfiCrossDso) {
     // Indicate that we want cross-DSO control flow integrity checks.
     getModule().addModuleFlag(llvm::Module::Override, "Cross-DSO CFI", 1);

diff  --git a/clang/test/CodeGen/riscv-metadata.c b/clang/test/CodeGen/riscv-metadata.c
new file mode 100644
index 000000000000..19bde4ca73be
--- /dev/null
+++ b/clang/test/CodeGen/riscv-metadata.c
@@ -0,0 +1,14 @@
+// RUN: %clang_cc1 -triple riscv32 -target-abi ilp32 -emit-llvm -o - %s | FileCheck -check-prefix=ILP32 %s
+// RUN: %clang_cc1 -triple riscv32 -target-feature +f -target-abi ilp32f -emit-llvm -o - %s | FileCheck -check-prefix=ILP32F %s
+// RUN: %clang_cc1 -triple riscv32 -target-feature +d -target-abi ilp32d -emit-llvm -o - %s | FileCheck -check-prefix=ILP32D %s
+// RUN: %clang_cc1 -triple riscv64 -target-abi lp64 -emit-llvm -o - %s | FileCheck -check-prefix=LP64 %s
+// RUN: %clang_cc1 -triple riscv64 -target-feature +f -target-abi lp64f -emit-llvm -o - %s | FileCheck -check-prefix=LP64F %s
+// RUN: %clang_cc1 -triple riscv64 -target-feature +d -target-abi lp64d -emit-llvm -o - %s | FileCheck -check-prefix=LP64D %s
+
+// ILP32: !{{[0-9]+}} = !{i32 1, !"target-abi", !"ilp32"}
+// ILP32F: !{{[0-9]+}} = !{i32 1, !"target-abi", !"ilp32f"}
+// ILP32D: !{{[0-9]+}} = !{i32 1, !"target-abi", !"ilp32d"}
+
+// LP64: !{{[0-9]+}} = !{i32 1, !"target-abi", !"lp64"}
+// LP64F: !{{[0-9]+}} = !{i32 1, !"target-abi", !"lp64f"}
+// LP64D: !{{[0-9]+}} = !{i32 1, !"target-abi", !"lp64d"}