Hello!
Add --param min-insn-to-prefetch-ratio=0 to avoid "Not prefetching --
instruction to prefetch ratio (6) too small" aprefetch pass rejection.
2011-05-05 Uros Bizjak <ubiz...@gmail.com>
* gcc.target/i386/opt-1.c: Add --param min-insn-to-prefetch -ratio=0
to dg-options.
* gcc.target/i386/opt-1.c: Ditto.
Tested on x86_64-pc-linux-gnu {,-m32} AVX target, committed to mainline SVN.
Uros.
Index: gcc.target/i386/opt-2.c
===================================================================
--- gcc.target/i386/opt-2.c (revision 173416)
+++ gcc.target/i386/opt-2.c (working copy)
@@ -1,7 +1,7 @@
/* Test the attribute((optimize)) really works. Do this test by checking
whether we vectorize a simple loop. */
/* { dg-do compile } */
-/* { dg-options "-O1 -msse2 -mfpmath=sse -march=k8" } */
+/* { dg-options "-O1 -msse2 -mfpmath=sse -march=k8 --param
min-insn-to-prefetch-ratio=0" } */
/* { dg-final { scan-assembler "prefetcht0" } } */
/* { dg-final { scan-assembler "addps" } } */
/* { dg-final { scan-assembler "subss" } } */
Index: gcc.target/i386/opt-1.c
===================================================================
--- gcc.target/i386/opt-1.c (revision 173416)
+++ gcc.target/i386/opt-1.c (working copy)
@@ -1,7 +1,7 @@
/* Test the attribute((optimize)) really works. Do this test by checking
whether we vectorize a simple loop. */
/* { dg-do compile } */
-/* { dg-options "-O1 -msse2 -mfpmath=sse -march=k8" } */
+/* { dg-options "-O1 -msse2 -mfpmath=sse -march=k8 --param
min-insn-to-prefetch-ratio=0" } */
/* { dg-final { scan-assembler "prefetcht0" } } */
/* { dg-final { scan-assembler "addps" } } */
/* { dg-final { scan-assembler "subss" } } */
