obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

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)