commit e3892d84e0c1bf6b0e0c41e243726f3c06a1f772
author Simon Atanasyan <simon@atanasyan.com> Tue Jul 09 15:48:16 2019 +0000
committer Simon Atanasyan <simon@atanasyan.com> Tue Jul 09 15:48:16 2019 +0000
tree a574bf958d02859731f803dad771f597cd5fb99a
parent 623282f0dd7fb1dba7623f2b10294f003f92570e

[mips] Show error in case of using FP64 mode on pre MIPS32R2 CPU

llvm-svn: 365508

llvm/lib/Target/Mips/MipsSubtarget.cpp

diff --git a/llvm/lib/Target/Mips/MipsSubtarget.cpp b/llvm/lib/Target/Mips/MipsSubtarget.cpp
index 472dd72..d021b3d 100644
--- a/llvm/lib/Target/Mips/MipsSubtarget.cpp
+++ b/llvm/lib/Target/Mips/MipsSubtarget.cpp
@@ -108,6 +108,11 @@
                        "See -mattr=+fp64.",
                        false);
 
+  if (isFP64bit() && !hasMips64() && hasMips32() && !hasMips32r2())
+    report_fatal_error(
+        "FPU with 64-bit registers is not available on MIPS32 pre revision 2. "
+        "Use -mcpu=mips32r2 or greater.");
+
   if (!isABI_O32() && !useOddSPReg())
     report_fatal_error("-mattr=+nooddspreg requires the O32 ABI.", false);