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Unified Diff: src/assembler.h

Issue 178223011: Reset trunk to 3.24.35.4 (Closed) Base URL: https://v8.googlecode.com/svn/trunk
Patch Set: Created 6 years, 10 months ago
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Index: src/assembler.h
diff --git a/src/assembler.h b/src/assembler.h
index 89b0e5a6223d2549196e4d1e9b52e24576e61a59..ce7d9f5b7da3d09488aa8d460139cdc900665133 100644
--- a/src/assembler.h
+++ b/src/assembler.h
@@ -1002,6 +1002,32 @@ class PreservePositionScope BASE_EMBEDDED {
// -----------------------------------------------------------------------------
// Utility functions
+inline bool is_intn(int x, int n) {
+ return -(1 << (n-1)) <= x && x < (1 << (n-1));
+}
+
+inline bool is_int8(int x) { return is_intn(x, 8); }
+inline bool is_int16(int x) { return is_intn(x, 16); }
+inline bool is_int18(int x) { return is_intn(x, 18); }
+inline bool is_int24(int x) { return is_intn(x, 24); }
+
+inline bool is_uintn(int x, int n) {
+ return (x & -(1 << n)) == 0;
+}
+
+inline bool is_uint2(int x) { return is_uintn(x, 2); }
+inline bool is_uint3(int x) { return is_uintn(x, 3); }
+inline bool is_uint4(int x) { return is_uintn(x, 4); }
+inline bool is_uint5(int x) { return is_uintn(x, 5); }
+inline bool is_uint6(int x) { return is_uintn(x, 6); }
+inline bool is_uint8(int x) { return is_uintn(x, 8); }
+inline bool is_uint10(int x) { return is_uintn(x, 10); }
+inline bool is_uint12(int x) { return is_uintn(x, 12); }
+inline bool is_uint16(int x) { return is_uintn(x, 16); }
+inline bool is_uint24(int x) { return is_uintn(x, 24); }
+inline bool is_uint26(int x) { return is_uintn(x, 26); }
+inline bool is_uint28(int x) { return is_uintn(x, 28); }
+
inline int NumberOfBitsSet(uint32_t x) {
unsigned int num_bits_set;
for (num_bits_set = 0; x; x >>= 1) {
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