| Eric Christopher | 3883e66 | 2011-07-26 22:17:02 +0000 | [diff] [blame] | 1 | // RUN: %clang_cc1 -O2 -emit-llvm %s -o - | not grep alloca |
| 2 | // RUN: %clang_cc1 -m32 -O2 -emit-llvm %s -o - | not grep {store } |
| 3 | |
| 4 | enum { |
| 5 | PP_C, |
| 6 | PP_D, |
| 7 | PP_R, |
| 8 | PP_2D, |
| 9 | PP_1D, |
| 10 | PP_SR, |
| 11 | PP_S2D, |
| 12 | PP_S1D, |
| 13 | PP_SC |
| 14 | }; |
| 15 | |
| 16 | enum { |
| 17 | G_VP, |
| 18 | G_FP, |
| 19 | G_VS, |
| 20 | G_GS, |
| 21 | G_FS |
| 22 | }; |
| 23 | |
| 24 | enum { |
| 25 | G_NONE, |
| 26 | G_B, |
| 27 | G_R |
| 28 | }; |
| 29 | |
| 30 | typedef union _Key { |
| 31 | struct { |
| 32 | unsigned int count : 2; |
| 33 | unsigned int Aconst : 1; |
| 34 | unsigned int Bconst : 1; |
| 35 | unsigned int Cconst : 1; |
| 36 | unsigned int Xused : 1; |
| 37 | unsigned int Yused : 1; |
| 38 | unsigned int Zused : 1; |
| 39 | unsigned int Wused : 1; |
| 40 | unsigned int ttype : 3; |
| 41 | unsigned int scalar : 1; |
| 42 | unsigned int AType : 4; |
| 43 | unsigned int BType : 4; |
| 44 | unsigned int CType : 4; |
| 45 | unsigned int RType : 4; |
| 46 | unsigned int Size : 2; |
| 47 | unsigned int prec : 1; |
| 48 | |
| 49 | unsigned int ASize : 2; |
| 50 | unsigned int BSize : 2; |
| 51 | unsigned int CSize : 2; |
| 52 | unsigned int tTex : 4; |
| 53 | unsigned int proj : 1; |
| 54 | unsigned int lod : 2; |
| 55 | unsigned int dvts : 1; |
| 56 | unsigned int uipad : 18; |
| 57 | } key_io; |
| 58 | struct { |
| 59 | unsigned int key0; |
| 60 | unsigned int key1; |
| 61 | } key; |
| 62 | unsigned long long lkey; |
| 63 | } Key; |
| 64 | |
| 65 | static void foo(const Key iospec, int* ret) |
| 66 | { |
| 67 | *ret=0; |
| 68 | if(((iospec.key_io.lod == G_B) && |
| 69 | (iospec.key_io.ttype != G_VS) && |
| 70 | (iospec.key_io.ttype != G_GS) && |
| 71 | (iospec.key_io.ttype != G_FS)) || |
| 72 | |
| 73 | (((iospec.key_io.tTex == PP_C) || |
| 74 | (iospec.key_io.tTex == PP_SC)) && |
| 75 | ((iospec.key_io.tTex == PP_SR) || |
| 76 | (iospec.key_io.tTex == PP_S2D) || |
| 77 | (iospec.key_io.tTex == PP_S1D) || |
| 78 | (iospec.key_io.tTex == PP_SC)))) |
| 79 | *ret=1; |
| 80 | } |
| 81 | |
| 82 | |
| 83 | extern int bar(unsigned long long key_token2) |
| 84 | { |
| 85 | int ret; |
| 86 | __attribute__ ((unused)) Key iospec = (Key) key_token2; |
| 87 | foo(iospec, &ret); |
| 88 | return ret; |
| 89 | } |