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db01c3adc6
This diff includes the logic for setting the precision bits for each primary fixed point type in the target info and logic for initializing a fixed point literal.
Fixed point literals are declared using the suffixes
```
hr: short _Fract
uhr: unsigned short _Fract
r: _Fract
ur: unsigned _Fract
lr: long _Fract
ulr: unsigned long _Fract
hk: short _Accum
uhk: unsigned short _Accum
k: _Accum
uk: unsigned _Accum
```
Errors are also thrown for illegal literal values
```
unsigned short _Accum u_short_accum = 256.0uhk; // expected-error{{the integral part of this literal is too large for this unsigned _Accum type}}
```
Differential Revision: https://reviews.llvm.org/D46915
llvm-svn: 335148
151 lines
13 KiB
C
151 lines
13 KiB
C
// RUN: %clang_cc1 -verify -ffixed-point %s
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/* We do not yet support long long. No recommended bit widths are given for this
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* size. */
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long long _Accum longlong_accum; // expected-error{{'long long _Accum' is invalid}}
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unsigned long long _Accum u_longlong_accum; // expected-error{{'long long _Accum' is invalid}}
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long long _Fract longlong_fract; // expected-error{{'long long _Fract' is invalid}}
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unsigned long long _Fract u_longlong_fract; // expected-error{{'long long _Fract' is invalid}}
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_Sat long long _Accum sat_longlong_accum; // expected-error{{'long long _Accum' is invalid}}
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_Sat unsigned long long _Accum sat_u_longlong_accum; // expected-error{{'long long _Accum' is invalid}}
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_Sat long long _Fract sat_longlong_fract; // expected-error{{'long long _Fract' is invalid}}
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_Sat unsigned long long _Fract sat_u_longlong_fract; // expected-error{{'long long _Fract' is invalid}}
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/* Although _Complex types work with floating point numbers, the extension
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* provides no info for complex fixed point types. */
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_Complex signed short _Accum cmplx_s_short_accum; // expected-error{{'_Complex _Accum' is invalid}}
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_Complex signed _Accum cmplx_s_accum; // expected-error{{'_Complex _Accum' is invalid}}
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_Complex signed long _Accum cmplx_s_long_accum; // expected-error{{'_Complex _Accum' is invalid}}
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_Complex unsigned short _Accum cmplx_u_short_accum; // expected-error{{'_Complex _Accum' is invalid}}
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_Complex unsigned _Accum cmplx_u_accum; // expected-error{{'_Complex _Accum' is invalid}}
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_Complex unsigned long _Accum cmplx_u_long_accum; // expected-error{{'_Complex _Accum' is invalid}}
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_Complex short _Accum cmplx_s_short_accum; // expected-error{{'_Complex _Accum' is invalid}}
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_Complex _Accum cmplx_s_accum; // expected-error{{'_Complex _Accum' is invalid}}
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_Complex long _Accum cmplx_s_long_accum; // expected-error{{'_Complex _Accum' is invalid}}
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_Complex signed short _Fract cmplx_s_short_fract; // expected-error{{'_Complex _Fract' is invalid}}
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_Complex signed _Fract cmplx_s_fract; // expected-error{{'_Complex _Fract' is invalid}}
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_Complex signed long _Fract cmplx_s_long_fract; // expected-error{{'_Complex _Fract' is invalid}}
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_Complex unsigned short _Fract cmplx_u_short_fract; // expected-error{{'_Complex _Fract' is invalid}}
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_Complex unsigned _Fract cmplx_u_fract; // expected-error{{'_Complex _Fract' is invalid}}
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_Complex unsigned long _Fract cmplx_u_long_fract; // expected-error{{'_Complex _Fract' is invalid}}
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_Complex short _Fract cmplx_s_short_fract; // expected-error{{'_Complex _Fract' is invalid}}
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_Complex _Fract cmplx_s_fract; // expected-error{{'_Complex _Fract' is invalid}}
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_Complex long _Fract cmplx_s_long_fract; // expected-error{{'_Complex _Fract' is invalid}}
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_Complex _Sat signed short _Accum cmplx_sat_s_short_accum; // expected-error{{'_Complex _Accum' is invalid}}
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_Complex _Sat signed _Accum cmplx_sat_s_accum; // expected-error{{'_Complex _Accum' is invalid}}
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_Complex _Sat signed long _Accum cmplx_sat_s_long_accum; // expected-error{{'_Complex _Accum' is invalid}}
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_Complex _Sat unsigned short _Accum cmplx_sat_u_short_accum; // expected-error{{'_Complex _Accum' is invalid}}
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_Complex _Sat unsigned _Accum cmplx_sat_u_accum; // expected-error{{'_Complex _Accum' is invalid}}
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_Complex _Sat unsigned long _Accum cmplx_sat_u_long_accum; // expected-error{{'_Complex _Accum' is invalid}}
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_Complex _Sat short _Accum cmplx_sat_s_short_accum; // expected-error{{'_Complex _Accum' is invalid}}
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_Complex _Sat _Accum cmplx_sat_s_accum; // expected-error{{'_Complex _Accum' is invalid}}
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_Complex _Sat long _Accum cmplx_sat_s_long_accum; // expected-error{{'_Complex _Accum' is invalid}}
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_Complex signed short _Fract cmplx_sat_s_short_fract; // expected-error{{'_Complex _Fract' is invalid}}
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_Complex signed _Fract cmplx_sat_s_fract; // expected-error{{'_Complex _Fract' is invalid}}
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_Complex signed long _Fract cmplx_sat_s_long_fract; // expected-error{{'_Complex _Fract' is invalid}}
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_Complex unsigned short _Fract cmplx_sat_u_short_fract; // expected-error{{'_Complex _Fract' is invalid}}
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_Complex unsigned _Fract cmplx_sat_u_fract; // expected-error{{'_Complex _Fract' is invalid}}
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_Complex unsigned long _Fract cmplx_sat_u_long_fract; // expected-error{{'_Complex _Fract' is invalid}}
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_Complex short _Fract cmplx_sat_s_short_fract; // expected-error{{'_Complex _Fract' is invalid}}
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_Complex _Fract cmplx_sat_s_fract; // expected-error{{'_Complex _Fract' is invalid}}
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_Complex long _Fract cmplx_sat_s_long_fract; // expected-error{{'_Complex _Fract' is invalid}}
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/* Bad combinations */
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float _Accum f_accum; // expected-error{{cannot combine with previous 'float' declaration specifier}}
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double _Accum d_accum; // expected-error{{cannot combine with previous 'double' declaration specifier}}
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_Bool _Accum b_accum; // expected-error{{cannot combine with previous '_Bool' declaration specifier}}
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char _Accum c_accum; // expected-error{{cannot combine with previous 'char' declaration specifier}}
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int _Accum i_accum; // expected-error{{cannot combine with previous 'int' declaration specifier}}
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float _Fract f_fract; // expected-error{{cannot combine with previous 'float' declaration specifier}}
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double _Fract d_fract; // expected-error{{cannot combine with previous 'double' declaration specifier}}
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_Bool _Fract b_fract; // expected-error{{cannot combine with previous '_Bool' declaration specifier}}
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char _Fract c_fract; // expected-error{{cannot combine with previous 'char' declaration specifier}}
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int _Fract i_fract; // expected-error{{cannot combine with previous 'int' declaration specifier}}
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/* Bad saturated combinations */
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_Sat float f; // expected-error{{'_Sat' specifier is only valid on '_Fract' or '_Accum', not 'float'}}
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_Sat double d; // expected-error{{'_Sat' specifier is only valid on '_Fract' or '_Accum', not 'double'}}
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_Sat _Bool b; // expected-error{{'_Sat' specifier is only valid on '_Fract' or '_Accum', not '_Bool'}}
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_Sat char c; // expected-error{{'_Sat' specifier is only valid on '_Fract' or '_Accum', not 'char'}}
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_Sat int i; // expected-error{{'_Sat' specifier is only valid on '_Fract' or '_Accum', not 'int'}}
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_Sat _Sat _Fract fract; // expected-warning{{duplicate '_Sat' declaration specifier}}
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/* Literals that cannot fit into types */
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signed short _Accum s_short_accum = 256.0hk; // expected-error{{this value is too large for this fixed point type}}
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unsigned short _Accum u_short_accum = 256.0uhk; // expected-error{{this value is too large for this fixed point type}}
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signed _Accum s_accum = 65536.0k; // expected-error{{this value is too large for this fixed point type}}
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unsigned _Accum u_accum = 65536.0uk; // expected-error{{this value is too large for this fixed point type}}
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signed long _Accum s_long_accum = 4294967296.0lk; // expected-error{{this value is too large for this fixed point type}}
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unsigned long _Accum u_long_accum = 4294967296.0ulk; // expected-error{{this value is too large for this fixed point type}}
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// Large values from decimal exponents
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short _Accum short_accum_exp = 2.56e2hk; // expected-error{{this value is too large for this fixed point type}}
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_Accum accum_exp = 6.5536e4k; // expected-error{{this value is too large for this fixed point type}}
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long _Accum long_accum_exp = 4.294967296e9lk; // expected-error{{this value is too large for this fixed point type}}
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unsigned short _Accum u_short_accum_exp = 2.56e2uhk; // expected-error{{this value is too large for this fixed point type}}
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unsigned _Accum u_accum_exp = 6.5536e4uk; // expected-error{{this value is too large for this fixed point type}}
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unsigned long _Accum u_long_accum_exp = 4.294967296e9ulk; // expected-error{{this value is too large for this fixed point type}}
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// Large value from hexidecimal exponents
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short _Accum short_accum_hex_exp = 0x1p8hk; // expected-error{{this value is too large for this fixed point type}}
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_Accum accum_hex_exp = 0x1p16k; // expected-error{{this value is too large for this fixed point type}}
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long _Accum long_accum_hex_exp = 0x1p32lk; // expected-error{{this value is too large for this fixed point type}}
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unsigned short _Accum u_short_accum_hex_exp = 0x1p8uhk; // expected-error{{this value is too large for this fixed point type}}
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unsigned _Accum u_accum_hex_exp = 0x1p16uk; // expected-error{{this value is too large for this fixed point type}}
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unsigned long _Accum u_long_accum_hex_exp = 0x1p32ulk; // expected-error{{this value is too large for this fixed point type}}
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// Very large exponent
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_Accum x = 1e1000000000000000000000000000000000k; // expected-error{{this value is too large for this fixed point type}}
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/* Although _Fract's cannot equal 1, _Fract literals written as 1 are allowed
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* and the underlying value represents the max value for that _Fract type. */
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short _Fract short_fract_above_1 = 1.1hr; // expected-error{{this value is too large for this fixed point type}}
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_Fract fract_above_1 = 1.1r; // expected-error{{this value is too large for this fixed point type}}
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long _Fract long_fract_above_1 = 1.1lr; // expected-error{{this value is too large for this fixed point type}}
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unsigned short _Fract u_short_fract_above_1 = 1.1uhr; // expected-error{{this value is too large for this fixed point type}}
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unsigned _Fract u_fract_above_1 = 1.1ur; // expected-error{{this value is too large for this fixed point type}}
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unsigned long _Fract u_long_fract_above_1 = 1.1ulr; // expected-error{{this value is too large for this fixed point type}}
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short _Fract short_fract_hex_exp = 0x0.fp1hr; // expected-error{{this value is too large for this fixed point type}}
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_Fract fract_hex_exp = 0x0.fp1r; // expected-error{{this value is too large for this fixed point type}}
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long _Fract long_fract_hex_exp = 0x0.fp1lr; // expected-error{{this value is too large for this fixed point type}}
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unsigned short _Fract u_short_fract_hex_exp = 0x0.fp1uhr; // expected-error{{this value is too large for this fixed point type}}
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unsigned _Fract u_fract_hex_exp = 0x0.fp1ur; // expected-error{{this value is too large for this fixed point type}}
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unsigned long _Fract u_long_fract_hex_exp = 0x0.fp1ulr; // expected-error{{this value is too large for this fixed point type}}
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/* Do not allow typedef to be used with typedef'd types */
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typedef short _Fract shortfract_t;
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typedef short _Accum shortaccum_t;
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typedef _Fract fract_t;
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typedef _Accum accum_t;
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typedef long _Fract longfract_t;
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typedef long _Accum longaccum_t;
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_Sat shortfract_t td_sat_short_fract; // expected-error{{'_Sat' specifier is only valid on '_Fract' or '_Accum', not 'type-name'}}
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_Sat shortaccum_t td_sat_short_accum; // expected-error{{'_Sat' specifier is only valid on '_Fract' or '_Accum', not 'type-name'}}
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_Sat fract_t td_sat_fract; // expected-error{{'_Sat' specifier is only valid on '_Fract' or '_Accum', not 'type-name'}}
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_Sat accum_t td_sat_accum; // expected-error{{'_Sat' specifier is only valid on '_Fract' or '_Accum', not 'type-name'}}
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_Sat longfract_t td_sat_long_fract; // expected-error{{'_Sat' specifier is only valid on '_Fract' or '_Accum', not 'type-name'}}
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_Sat longaccum_t td_sat_long_accum; // expected-error{{'_Sat' specifier is only valid on '_Fract' or '_Accum', not 'type-name'}}
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/* Bad suffixes */
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_Accum fk = 1.0fk; // expected-error{{invalid suffix 'fk' on integer constant}}
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_Accum kk = 1.0kk; // expected-error{{invalid suffix 'kk' on integer constant}}
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_Accum rk = 1.0rk; // expected-error{{invalid suffix 'rk' on integer constant}}
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_Accum rk = 1.0rr; // expected-error{{invalid suffix 'rr' on integer constant}}
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_Accum qk = 1.0qr; // expected-error{{invalid suffix 'qr' on integer constant}}
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/* Using wrong exponent notation */
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_Accum dec_with_hex_exp1 = 0.1p10k; // expected-error{{invalid suffix 'p10k' on integer constant}}
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_Accum dec_with_hex_exp2 = 0.1P10k; // expected-error{{invalid suffix 'P10k' on integer constant}}
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_Accum hex_with_dex_exp1 = 0x0.1e10k; // expected-error{{hexadecimal floating constant requires an exponent}}
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_Accum hex_with_dex_exp2 = 0x0.1E10k; // expected-error{{hexadecimal floating constant requires an exponent}}
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