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| author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
|---|---|---|
| committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
| commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
| tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/gcc.target/mips/branch-helper.h | |
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Diffstat (limited to 'gcc/testsuite/gcc.target/mips/branch-helper.h')
| -rw-r--r-- | gcc/testsuite/gcc.target/mips/branch-helper.h | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/mips/branch-helper.h b/gcc/testsuite/gcc.target/mips/branch-helper.h new file mode 100644 index 000000000..85399be4c --- /dev/null +++ b/gcc/testsuite/gcc.target/mips/branch-helper.h @@ -0,0 +1,37 @@ +/* DN(X) generates 2**N copies of asm instruction X. */ +#define D0(X) X +#define D1(X) X "\n\t" X +#define D2(X) D1 (D1 (X)) +#define D3(X) D2 (D1 (X)) +#define D4(X) D2 (D2 (X)) +#define D5(X) D4 (D1 (X)) +#define D6(X) D4 (D2 (X)) +#define D7(X) D4 (D2 (D1 (X))) +#define D8(X) D4 (D4 (X)) +#define D9(X) D8 (D1 (X)) +#define D10(X) D8 (D2 (X)) +#define D11(X) D8 (D2 (D1 (X))) +#define D12(X) D8 (D4 (X)) +#define D13(X) D8 (D4 (D1 (X))) +#define D14(X) D8 (D4 (D2 (X))) + +/* Emit something that is 0x1fff8 bytes long, which is the largest + permissible range for non-MIPS16 forward branches. */ +#define OCCUPY_0x1fff8 \ + asm (D14 ("nop") "\n\t" \ + D13 ("nop") "\n\t" \ + D12 ("nop") "\n\t" \ + D11 ("nop") "\n\t" \ + D10 ("nop") "\n\t" \ + D9 ("nop") "\n\t" \ + D8 ("nop") "\n\t" \ + D7 ("nop") "\n\t" \ + D6 ("nop") "\n\t" \ + D5 ("nop") "\n\t" \ + D4 ("nop") "\n\t" \ + D3 ("nop") "\n\t" \ + D2 ("nop") "\n\t" \ + D1 ("nop")) + +/* Likewise emit something that is 0x1fffc bytes long. */ +#define OCCUPY_0x1fffc do { asm ("nop"); OCCUPY_0x1fff8; } while (0) |