Fix a basic bug (having to do with typedefs) in Sema::UsualArithmeticConversions().
This resuled in the following crash below.
Also modified the usual-float.c test case to capture this case.
[steve-naroffs-imac:clang/test/Sema] snaroff% ../../../../Debug/bin/clang usual-float.c
Assertion failed: (0 && "Sema::UsualArithmeticConversions(): illegal float comparison"), function UsualArithmeticConversions, file SemaExpr.cpp, line 960.
0 clang 0x001ef9b9 _ZN40_GLOBAL__N_Signals.cpp_00000000_4E6DAF8315PrintStackTraceEv + 45
1 clang 0x001efd5f _ZN40_GLOBAL__N_Signals.cpp_00000000_4E6DAF8313SignalHandlerEi + 323
2 libSystem.B.dylib 0x90c6297b _sigtramp + 43
3 ??? 0xffffffff 0x0 + 4294967295
4 libSystem.B.dylib 0x90cdb782 raise + 26
5 libSystem.B.dylib 0x90cead3f abort + 73
6 libSystem.B.dylib 0x90cdc923 __assert_rtn + 101
7 clang 0x00077316 _ZN5clang4Sema26UsualArithmeticConversionsERPNS_4ExprES3_b + 1004
8 clang 0x000803cf _ZN5clang4Sema27CheckMultiplyDivideOperandsERPNS_4ExprES3_NS_14SourceLocationEb + 181
9 clang 0x0007a8e8 _ZN5clang4Sema10ActOnBinOpENS_14SourceLocationENS_3tok9TokenKindEPvS4_ + 472
10 clang 0x000cf058 _ZN5clang6Parser26ParseRHSOfBinaryExpressionENS_6Action12ActionResultILj0EEEj + 1286
11 clang 0x000cf2de _ZN5clang6Parser25ParseAssignmentExpressionEv + 86
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43985 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Sema/usual-float.c b/test/Sema/usual-float.c
index 81e9e6d..9c1977f 100644
--- a/test/Sema/usual-float.c
+++ b/test/Sema/usual-float.c
@@ -1,6 +1,12 @@
// RUN: clang %s -fsyntax-only
+typedef float CGFloat;
+
+extern void func(CGFloat);
void foo(int dir, int n, int tindex) {
const float PI = 3.142;
-float ang = (float) tindex * (-dir*2.0f*PI/n);
+ CGFloat cgf = 3.4;
+
+ float ang = (float) tindex * (-dir*2.0f*PI/n);
+ func((CGFloat)cgf/65535.0f);
}