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Subversion Repositories openrisc

[/] [openrisc/] [tags/] [gnu-src/] [gcc-4.5.1/] [gcc-4.5.1-or32-1.0rc4/] [gcc/] [testsuite/] [gcc.target/] [mips/] [branch-helper.h] - Blame information for rev 519

Line No.	Rev	Author	Line
1	321	jeremybenn	`/* DN(X) generates 2*N copies of asm instruction X. /`
2			`#define D0(X) X`
3			`#define D1(X) X "\n\t" X`
4			`#define D2(X) D1 (D1 (X))`
5			`#define D3(X) D2 (D1 (X))`
6			`#define D4(X) D2 (D2 (X))`
7			`#define D5(X) D4 (D1 (X))`
8			`#define D6(X) D4 (D2 (X))`
9			`#define D7(X) D4 (D2 (D1 (X)))`
10			`#define D8(X) D4 (D4 (X))`
11			`#define D9(X) D8 (D1 (X))`
12			`#define D10(X) D8 (D2 (X))`
13			`#define D11(X) D8 (D2 (D1 (X)))`
14			`#define D12(X) D8 (D4 (X))`
15			`#define D13(X) D8 (D4 (D1 (X)))`
16			`#define D14(X) D8 (D4 (D2 (X)))`
17
18			`/* Emit something that is 0x1fff8 bytes long, which is the largest`
19			`permissible range for non-MIPS16 forward branches. */`
20			`#define OCCUPY_0x1fff8 \`
21			`asm (D14 ("nop") "\n\t" \`
22			`D13 ("nop") "\n\t" \`
23			`D12 ("nop") "\n\t" \`
24			`D11 ("nop") "\n\t" \`
25			`D10 ("nop") "\n\t" \`
26			`D9 ("nop") "\n\t" \`
27			`D8 ("nop") "\n\t" \`
28			`D7 ("nop") "\n\t" \`
29			`D6 ("nop") "\n\t" \`
30			`D5 ("nop") "\n\t" \`
31			`D4 ("nop") "\n\t" \`
32			`D3 ("nop") "\n\t" \`
33			`D2 ("nop") "\n\t" \`
34			`D1 ("nop"))`
35
36			`/* Likewise emit something that is 0x1fffc bytes long. */`
37			`#define OCCUPY_0x1fffc do { asm ("nop"); OCCUPY_0x1fff8; } while (0)`