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Add a test case to validate code gen for typeof/builtin_types_compatible. 

This test case currently generates the following unexpected warnings (when compared with gcc).

[dylan:clang/test/Parser] admin% ../../../../Debug/bin/clang -parse-ast-check builtin_types_compatible.c
Warnings seen but not expected:
  Line 28: expression result unused
  Line 29: expression result unused
  Line 30: expression result unused
  Line 31: expression result unused
  Line 32: expression result unused
  Line 33: expression result unused

llvm-svn: 40789
This commit is contained in:
Steve Naroff 2007-08-03 18:38:22 +00:00
parent 4048005ad8
commit 7d451d614c
2 changed files with 36 additions and 1 deletions
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2
clang/clang.xcodeproj/project.pbxproj
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@ -196,7 +196,7 @@
1A869AA70BA21ABA008DA07A /* LiteralSupport.cpp */ = {isa = PBXFileReference; fileEncoding = 30; lastKnownFileType = sourcecode.cpp.cpp; path = LiteralSupport.cpp; sourceTree = "<group>"; };
84D9A8870C1A57E100AC7ABC /* AttributeList.cpp */ = {isa = PBXFileReference; fileEncoding = 30; lastKnownFileType = sourcecode.cpp.cpp; name = AttributeList.cpp; path = Parse/AttributeList.cpp; sourceTree = "<group>"; };
84D9A88B0C1A581300AC7ABC /* AttributeList.h */ = {isa = PBXFileReference; fileEncoding = 30; lastKnownFileType = sourcecode.c.h; name = AttributeList.h; path = clang/Parse/AttributeList.h; sourceTree = "<group>"; };
8DD76F6C0486A84900D96B5E /* clang */ = {isa = PBXFileReference; explicitFileType = "compiled.mach-o.executable"; includeInIndex = 0; path = clang; sourceTree = BUILT_PRODUCTS_DIR; };
8DD76F6C0486A84900D96B5E /* clang */ = {isa = PBXFileReference; includeInIndex = 0; lastKnownFileType = "compiled.mach-o.executable"; path = clang; sourceTree = BUILT_PRODUCTS_DIR; };
DE01DA480B12ADA300AC22CE /* PPCallbacks.h */ = {isa = PBXFileReference; fileEncoding = 30; lastKnownFileType = sourcecode.c.h; path = PPCallbacks.h; sourceTree = "<group>"; };
DE06756B0C051CFE00EBBFD8 /* ParseExprCXX.cpp */ = {isa = PBXFileReference; fileEncoding = 30; lastKnownFileType = sourcecode.cpp.cpp; name = ParseExprCXX.cpp; path = Parse/ParseExprCXX.cpp; sourceTree = "<group>"; };
DE06B73D0A8307640050E87E /* LangOptions.h */ = {isa = PBXFileReference; fileEncoding = 30; lastKnownFileType = sourcecode.c.h; path = LangOptions.h; sourceTree = "<group>"; };

35
clang/test/Parser/builtin_types_compatible.c Normal file
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@ -0,0 +1,35 @@
// RUN: clang -parse-ast-check
extern void funcInt(int);
extern void funcFloat(float);
extern void funcDouble(double);
// figure out why "char *" doesn't work (with gcc, nothing to do with clang)
//extern void funcCharPtr(char *);
#define func(expr) \
({ \
typeof(expr) tmp; \
if (__builtin_types_compatible_p(typeof(expr), int)) funcInt(tmp); \
else if (__builtin_types_compatible_p(typeof(expr), float)) funcFloat(tmp); \
else if (__builtin_types_compatible_p(typeof(expr), double)) funcDouble(tmp); \
})
#define func_choose(expr) \
__builtin_choose_expr(__builtin_types_compatible_p(typeof(expr), int), funcInt(expr), \
__builtin_choose_expr(__builtin_types_compatible_p(typeof(expr), float), funcFloat(expr), \
__builtin_choose_expr(__builtin_types_compatible_p(typeof(expr), double), funcDouble(expr), \
(void)0)))
static void test()
{
int a;
float b;
double d;
func(a);
func(b);
func(d);
func_choose(a);
func_choose(b);
func_choose(d);
}