RealView Compilation Tools Compiler Reference Guide - ARM ...

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Compiler-specific Features Syntax long __builtin_expect(long int expr, long int c) Where: expr c is an integral expression is a compile-time constant. Return value __builtin_expect returns the value of expr. Example if (__builtin_expect(i, 0)) { foo(); // we do not expect foo to be called, } // because we expect i to be zero 4.7.5 __builtin_frame_address This builtin function returns the frame address of the current function. The frame address is usually the address of the first word the function pushes on to the stack. Note This builtin function is a GNU compiler extension that is supported by the ARM compiler. Mode Supported in GNU mode only. Syntax void *__builtin_frame_address(unsigned int val) Where: val is an unsigned integer evaluating to zero. Return value __builtin_frame_address returns the address of the frame of the current function. 4-66 Copyright © 2007, 2010 ARM Limited. All rights reserved. ARM DUI 0348A Non-Confidential
Compiler-specific Features Example void *frame_address(void) { static void *frm_addr; } frm_addr = __builtin_frame_address(0); // return the sp return frm_addr; See also • __builtin_return_address • __current_sp on page 4-70. 4.7.6 __builtin_return_address This builtin function returns the return address of the current function. Note This builtin function is a GNU compiler extension that is supported by the ARM compiler. Mode Supported in GNU mode only. Syntax void *__builtin_return_address(unsigned int val) Where: val is an unsigned integer evaluating to zero. Return value __builtin_return_address returns the value of the link register that is used in returning from the current function. Example void *return_address_(void) { static void *rtn_addr; ARM DUI 0348A Copyright © 2007, 2010 ARM Limited. All rights reserved. 4-67 Non-Confidential
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® RealView Compilation Tools Versi
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Contents RealView Compilation Tools
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Preface This preface introduces the
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Preface Appendix A Via File Syntax
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Preface • ARM datasheet or techni
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Chapter 1 Introduction This chapter
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Introduction 1.2 Source language mo
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Introduction 1.3 Language extension
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Introduction • Compiling a C sour
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Chapter 2 Compiler Command-line Opt
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Compiler Command-line Options 2.1.2
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Compiler Command-line Options Defau
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Compiler Command-line Options Note
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Compiler Command-line Options Table
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Compiler Command-line Options int m
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Compiler Command-line Options See a
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Compiler Command-line Options • -
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Compiler Command-line Options • T
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Compiler Command-line Options Where
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Compiler Command-line Options Mode
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Compiler Command-line Options • #
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Compiler Command-line Options Synta
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Compiler Command-line Options When
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Compiler Command-line Options Examp
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Compiler Command-line Options A num
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Compiler Command-line Options softv
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Compiler Command-line Options If --
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Compiler Command-line Options • I
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Compiler Command-line Options N #if
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Compiler Command-line Options 1 Res
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Compiler Command-line Options Restr
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Compiler Command-line Options • #
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Compiler Command-line Options Synta
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Compiler Command-line Options Restr
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Compiler Command-line Options • S
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Compiler Command-line Options --no_
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Compiler Command-line Options --apc
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Compiler Command-line Options Selec
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Chapter 3 Language Extensions This
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Language Extensions 3.1.2 #include_
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Language Extensions 3.2 C99 languag
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Language Extensions 3.3 C99 languag
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Language Extensions Example void co
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Language Extensions static int y =
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Language Extensions 3.4.4 Dollar si
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Language Extensions 3.5 Standard C+
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Language Extensions Example 3-2 Lin
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Language Extensions 3.6 Standard C
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Language Extensions 3.6.4 Assembler
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Language Extensions 3.6.12 Structur
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Language Extensions 3.7 GNU languag
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Language Extensions 3.7.5 Character
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Language Extensions 3.7.10 Inline T
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Language Extensions Example int bar
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Chapter 4 Compiler-specific Feature
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Compiler-specific Features Usage __
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Compiler-specific Features Example
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Compiler-specific Features 4.1.6 __
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Compiler-specific Features Example
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Compiler-specific Features 4.1.11 _
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Compiler-specific Features short x;
Page 161 and 162: Compiler-specific Features Where: s
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Page 169 and 170: Compiler-specific Features 4.1.20 _
Page 171 and 172: Compiler-specific Features 4.2.2 __
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Page 183 and 184: Compiler-specific Features 4.4 Type
Page 185 and 186: Compiler-specific Features void cal
Page 187 and 188: Compiler-specific Features replaced
Page 189 and 190: Compiler-specific Features Note Thi
Page 191 and 192: Compiler-specific Features Example
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Page 199 and 200: Compiler-specific Features Syntax #
Page 201 and 202: Compiler-specific Features #pragma
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Page 209 and 210: Compiler-specific Features 4.7 Inst
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Page 217 and 218: Compiler-specific Features Return v
Page 219 and 220: Compiler-specific Features See also
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Page 223 and 224: Compiler-specific Features Where: p
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Page 229 and 230: Compiler-specific Features Note The
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Page 243 and 244: Compiler-specific Features unsigned
Page 245 and 246: Compiler-specific Features int32_t
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Page 251 and 252: Compiler-specific Features Table 4-
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C and C++ Implementation Details
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C and C++ Implementation Details st
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C and C++ Implementation Details 5.
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C and C++ Implementation Details No
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C and C++ Implementation Details na
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C and C++ Implementation Details 5.
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Appendix A Via File Syntax This app
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Via File Syntax A.2 Syntax Via file
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Appendix B Standard C Implementatio
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Standard C Implementation Definitio
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Appendix C Standard C++ Implementat
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Standard C++ Implementation Definit
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Standard C++ Implementation Definit
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Appendix D C and C++ Compiler Imple
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C and C++ Compiler Implementation L
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C and C++ Compiler Implementation L
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Appendix E Using NEON Support This
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Using NEON Support E.2 Vector data
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Using NEON Support • Vector satur
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Using NEON Support Vector add high
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Using NEON Support Vector saturatin
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Using NEON Support uint64x1_t vqsub
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Using NEON Support uint32x2_t vcle_
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Using NEON Support uint16x4_t vabd_
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Using NEON Support Long pairwise ad
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Using NEON Support int16x8_t vqshlq
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Using NEON Support uint8x8_t vrshr_
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Using NEON Support Vector signed->u
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Using NEON Support uint8x16_t vld1q
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Using NEON Support int64x1_t vld1_l
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Using NEON Support // VST1.16 {d0[0
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Using NEON Support // VLD3.32 {d0,
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Using NEON Support // VLD3.16 {d0[]
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Using NEON Support // VLD3.32 {d0[0
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Using NEON Support void vst2_u64(__
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Using NEON Support void vst2q_lane_
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Using NEON Support float32_t vget_l
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Using NEON Support uint8x16_t vdupq
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Using NEON Support uint16x4_t vget_
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Using NEON Support E.3.25 Operation
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Using NEON Support int16x8_t vmulq_
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Using NEON Support Vector widening
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Using NEON Support Absolute: Vd[i]
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Using NEON Support uint8x8_t vmvn_u
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Using NEON Support int16x8_t vornq_
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Using NEON Support uint32x4x2_t vuz
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