commit fae1475823cd77fc51c75b0237a19636b36a6179
author Bill Wendling <isanbard@gmail.com> Fri Aug 12 20:24:12 2011 +0000
committer Bill Wendling <isanbard@gmail.com> Fri Aug 12 20:24:12 2011 +0000
tree eb14877a08a4fc49514a9d2098577f9c62f6544d
parent 9f4f5d94cd9a7245b8dfe36a94790beae5da7c41

Initial commit of the 'landingpad' instruction.

This implements the 'landingpad' instruction. It's used to indicate that a basic
block is a landing pad. There are several restrictions on its use (see
LangRef.html for more detail). These restrictions allow the exception handling
code to gather the information it needs in a much more sane way.

This patch has the definition, implementation, C interface, parsing, and bitcode
support in it.

llvm-svn: 137501

llvm/include/llvm-c/Core.h

diff --git a/llvm/include/llvm-c/Core.h b/llvm/include/llvm-c/Core.h
index 0acf5a2..2562757 100644
--- a/llvm/include/llvm-c/Core.h
+++ b/llvm/include/llvm-c/Core.h
@@ -191,7 +191,8 @@
   LLVMAtomicRMW      = 57,
 
   /* Exception Handling Operators */
-  LLVMResume         = 58
+  LLVMResume         = 58,
+  LLVMLandingPad     = 59
 
 } LLVMOpcode;
 
@@ -283,6 +284,11 @@
   LLVMRealPredicateTrue   /**< Always true (always folded) */
 } LLVMRealPredicate;
 
+typedef enum {
+  LLVMLandingPadCatch,    /**< A catch clause   */
+  LLVMLandingPadFilter    /**< A filter clause  */
+} LLVMLandingPadClauseTy;
+
 void LLVMInitializeCore(LLVMPassRegistryRef R);
 
 
@@ -469,6 +475,7 @@
       macro(GetElementPtrInst)              \
       macro(InsertElementInst)              \
       macro(InsertValueInst)                \
+      macro(LandingPadInst)                 \
       macro(PHINode)                        \
       macro(SelectInst)                     \
       macro(ShuffleVectorInst)              \
@@ -837,6 +844,12 @@
 /* Add a destination to the indirectbr instruction */
 void LLVMAddDestination(LLVMValueRef IndirectBr, LLVMBasicBlockRef Dest);
 
+/* Add a catch or filter clause to the landingpad instruction */
+void LLVMAddClause(LLVMValueRef LandingPad, LLVMValueRef ClauseVal);
+
+/* Set the 'cleanup' flag in the landingpad instruction */
+void LLVMSetCleanup(LLVMValueRef LandingPad, LLVMBool Val);
+
 /* Arithmetic */
 LLVMValueRef LLVMBuildAdd(LLVMBuilderRef, LLVMValueRef LHS, LLVMValueRef RHS,
                           const char *Name);