From: Mehdi Amini <mehdi.amini@apple.com>
Date: Mon, 19 Sep 2016 21:27:04 +0000 (+0000)
Subject: BitcodeWriter: fix emission of invoke when calling a var-arg function with operand... 
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=a2d3e0354cab12e48c410ba163dd340ceb5131d7;p=llvm

BitcodeWriter: fix emission of invoke when calling a var-arg function with operand bundles

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@281940 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Bitcode/Writer/BitcodeWriter.cpp b/lib/Bitcode/Writer/BitcodeWriter.cpp
index 0fd239f71cc..df700a8aba1 100644
--- a/lib/Bitcode/Writer/BitcodeWriter.cpp
+++ b/lib/Bitcode/Writer/BitcodeWriter.cpp
@@ -2500,7 +2500,7 @@ void ModuleBitcodeWriter::writeInstruction(const Instruction &I,
 
     // Emit type/value pairs for varargs params.
     if (FTy->isVarArg()) {
-      for (unsigned i = FTy->getNumParams(), e = I.getNumOperands()-3;
+      for (unsigned i = FTy->getNumParams(), e = II->getNumArgOperands();
            i != e; ++i)
         pushValueAndType(I.getOperand(i), InstID, Vals); // vararg
     }
diff --git a/test/Bitcode/compatibility.ll b/test/Bitcode/compatibility.ll
index 18270607c3c..7edaa16c748 100644
--- a/test/Bitcode/compatibility.ll
+++ b/test/Bitcode/compatibility.ll
@@ -1590,6 +1590,24 @@ normal:
   ret void
 }
 
+declare void @vaargs_func(...)
+define void @invoke_with_operand_bundle_vaarg(i32* %ptr) personality i8 3 {
+; CHECK-LABEL: @invoke_with_operand_bundle_vaarg(
+ entry:
+  %l = load i32, i32* %ptr
+  %x = add i32 42, 1
+  invoke void (...) @vaargs_func(i32 10, i32 %x) [ "foo"(i32 42, i64 100, i32 %x), "foo"(i32 42, float  0.000000e+00, i32 %l) ]
+        to label %normal unwind label %exception
+; CHECK: invoke void (...) @vaargs_func(i32 10, i32 %x) [ "foo"(i32 42, i64 100, i32 %x), "foo"(i32 42, float  0.000000e+00, i32 %l) ]
+
+exception:
+  %cleanup = landingpad i8 cleanup
+  br label %normal
+normal:
+  ret void
+}
+
+
 declare void @f.writeonly() writeonly
 ; CHECK: declare void @f.writeonly() #39