Mercurial > hg > graal-compiler
comparison src/share/vm/asm/assembler.hpp @ 4114:6729bbc1fcd6
7003454: order constants in constant table by number of references in code
Reviewed-by: kvn, never, bdelsart
| author | twisti |
|---|---|
| date | Wed, 16 Nov 2011 01:39:50 -0800 |
| parents | 1d1603768966 |
| children | 40c2484c09e1 |
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| 4113:8c57262447d3 | 4114:6729bbc1fcd6 |
|---|---|
| 254 // save end pointer back to code buf. | 254 // save end pointer back to code buf. |
| 255 void sync(); | 255 void sync(); |
| 256 | 256 |
| 257 // ensure buf contains all code (call this before using/copying the code) | 257 // ensure buf contains all code (call this before using/copying the code) |
| 258 void flush(); | 258 void flush(); |
| 259 | |
| 260 // min and max values for signed immediate ranges | |
| 261 static int min_simm(int nbits) { return -(intptr_t(1) << (nbits - 1)) ; } | |
| 262 static int max_simm(int nbits) { return (intptr_t(1) << (nbits - 1)) - 1; } | |
| 263 | |
| 264 // Define some: | |
| 265 static int min_simm10() { return min_simm(10); } | |
| 266 static int min_simm13() { return min_simm(13); } | |
| 267 static int min_simm16() { return min_simm(16); } | |
| 268 | |
| 269 // Test if x is within signed immediate range for nbits | |
| 270 static bool is_simm(intptr_t x, int nbits) { return min_simm(nbits) <= x && x <= max_simm(nbits); } | |
| 271 | |
| 272 // Define some: | |
| 273 static bool is_simm5( intptr_t x) { return is_simm(x, 5 ); } | |
| 274 static bool is_simm8( intptr_t x) { return is_simm(x, 8 ); } | |
| 275 static bool is_simm10(intptr_t x) { return is_simm(x, 10); } | |
| 276 static bool is_simm11(intptr_t x) { return is_simm(x, 11); } | |
| 277 static bool is_simm12(intptr_t x) { return is_simm(x, 12); } | |
| 278 static bool is_simm13(intptr_t x) { return is_simm(x, 13); } | |
| 279 static bool is_simm16(intptr_t x) { return is_simm(x, 16); } | |
| 280 static bool is_simm26(intptr_t x) { return is_simm(x, 26); } | |
| 281 static bool is_simm32(intptr_t x) { return is_simm(x, 32); } | |
| 259 | 282 |
| 260 // Accessors | 283 // Accessors |
| 261 CodeBuffer* code() const; // _code_section->outer() | 284 CodeBuffer* code() const; // _code_section->outer() |
| 262 CodeSection* code_section() const { return _code_section; } | 285 CodeSection* code_section() const { return _code_section; } |
| 263 int sect() const; // return _code_section->index() | 286 int sect() const; // return _code_section->index() |