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Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo 100-0004, Japan RenesasTechnology Corp. Product Category
User Development Environment
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TN-CSX-061A/EA
Rev.
Title
SuperH RISC engine C/C++ Compiler Ver.8 information
Usage Limitation
Applicable Product
P0700CAS8-MWR P0700CAS8-SLR P0700CAS8-H7R
Ver.8.0.00
Reference Document
SuperH RISC engine C/C++ Compiler Assembler Optimizing Linkage Editor User's Manual REJ10B0047-0100H
Attached description detected information Ver. series SuperH RISC engine C/C++ Compiler. will affect this package version.
Attached: P0700CAS8-040120E SuperH RISC engine C/C++ Compiler Ver. 8.0.00 details detected information
2004. Renesas Technology Corp., rights reserved.
Page
P0700CAS8-040120E
SuperH RISC engine C/C++ Compiler Ver. 8.0.00 details detected information
detected ver. 8.0.00 SuperH RISC engine C/C++ Compiler shown below. Illegal field member comparison [Description] compared 1-bit field member volatile-qualified structure referenced pointer with constant, compared result incorrect. [Example]
typedef volatile struct type structure volatile-qualified unsigned a:19, b:1; member volatile-qualified f(ST (p->b) return return MOV.L MOVT @R4,R0 #16,R0 R2,R0 #1,R0
Expression p->b used indirect reference pointer
Illegal mask value
[Conditions] This problem occur when following conditions fulfilled. optimize=1 specified. conditional expression statement includes expression compare field constant. field referred expression(2) indirection reference pointer. Comparison between constant unsigned-type 1-bit field member "==" "!=" expression, comparison between constant unsigned-type 1-bit field member "==" expression. type structure volatile-qualified member not. type pointer volatile-qualified. pointer scalar variable. address pointer referred type field (unsigned) (short long). [Solutions] This problem prevented taking following ways. volatile-qualify type field member. Place expression refer address pointer within same file. expression (*&p)->b, p->b, indirection reference pointer. Specify optimize=0.
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