andrew.w.kaylor created this revision.
This patch updates the clang function that filters the mxcsr register name to
recognize that mxcsr is being split into two pseduo-registers that model the
control and status bits separately.
Repository:
rL LLVM
https://reviews.llvm.org/D30662
Files:
lib/Parse/ParseStmtAsm.cpp
Index: lib/Parse/ParseStmtAsm.cpp
===================================================================
--- lib/Parse/ParseStmtAsm.cpp
+++ lib/Parse/ParseStmtAsm.cpp
@@ -623,8 +623,9 @@
// Filter out "fpsw" and "mxcsr". They aren't valid GCC asm clobber
// constraints. Clang always adds fpsr to the clobber list anyway.
+ // Note that mxcsr is modeled as two separate registers.
llvm::erase_if(Clobbers, [](const std::string &C) {
- return C == "fpsw" || C == "mxcsr";
+ return C == "fpsw" || C == "mxcsr_c" || C == "mxcsr_s";
});
// Build the vector of clobber StringRefs.
Index: lib/Parse/ParseStmtAsm.cpp
===================================================================
--- lib/Parse/ParseStmtAsm.cpp
+++ lib/Parse/ParseStmtAsm.cpp
@@ -623,8 +623,9 @@
// Filter out "fpsw" and "mxcsr". They aren't valid GCC asm clobber
// constraints. Clang always adds fpsr to the clobber list anyway.
+ // Note that mxcsr is modeled as two separate registers.
llvm::erase_if(Clobbers, [](const std::string &C) {
- return C == "fpsw" || C == "mxcsr";
+ return C == "fpsw" || C == "mxcsr_c" || C == "mxcsr_s";
});
// Build the vector of clobber StringRefs.
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