Fix assertion failure in CodeGen where the input operand to an asm
instruction is tied to an output operand which is a pointer, and
the input operand is narrower than the output operand.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136438 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGStmt.cpp b/lib/CodeGen/CGStmt.cpp
index 60db07d..9987fd9 100644
--- a/lib/CodeGen/CGStmt.cpp
+++ b/lib/CodeGen/CGStmt.cpp
@@ -1533,8 +1533,12 @@
llvm::Type *OutputTy = ConvertType(OutputType);
if (isa<llvm::IntegerType>(OutputTy))
Arg = Builder.CreateZExt(Arg, OutputTy);
- else
+ else if (isa<llvm::PointerType>(OutputTy))
+ Arg = Builder.CreateZExt(Arg, IntPtrTy);
+ else {
+ assert(OutputTy->isFloatingPointTy() && "Unexpected output type");
Arg = Builder.CreateFPExt(Arg, OutputTy);
+ }
}
}
if (llvm::Type* AdjTy =
diff --git a/test/CodeGen/asm.c b/test/CodeGen/asm.c
index a2d56c8..019eb9c 100644
--- a/test/CodeGen/asm.c
+++ b/test/CodeGen/asm.c
@@ -200,6 +200,15 @@
return res;
}
+void *t24(char c) {
+ void *addr;
+ // CHECK: @t24
+ // CHECK: zext i8 {{.*}} to i32
+ // CHECK-NEXT: call i8* asm "foobar"
+ __asm__ ("foobar" : "=a" (addr) : "0" (c));
+ return addr;
+}
+
// PR10299 - fpsr, fpcr
void test(void)
