From 5545109a5d8da47e9f71658a282623fb9e4e8a52 Mon Sep 17 00:00:00 2001 From: Changpeng Fang Date: Wed, 9 Jun 2010 16:54:21 -0700 Subject: [PATCH] pr44185: fix prefetch test failures *gcc.dg/tree-ssa/prefetch-7.c: take the loops that will generate non-temporal stores out of the tests to form new test cases. As a result, no non-temporal store should be generated in this case. *gcc.dg/tree-ssa/prefetch-8.c: New. Test from original prefetch-7.c that generate one non-temporal store. *gcc.dg/tree-ssa/prefetch-9.c: New. Test from original prefetch-7.c that generate one non-temporal store and one one-temporal prefetch. --- gcc/testsuite/gcc.dg/tree-ssa/prefetch-7.c | 22 ++++-------------- gcc/testsuite/gcc.dg/tree-ssa/prefetch-8.c | 28 ++++++++++++++++++++++++ gcc/testsuite/gcc.dg/tree-ssa/prefetch-9.c | 32 ++++++++++++++++++++++++++++ 3 files changed, 65 insertions(+), 17 deletions(-) create mode 100644 gcc/testsuite/gcc.dg/tree-ssa/prefetch-8.c create mode 100644 gcc/testsuite/gcc.dg/tree-ssa/prefetch-9.c diff --git a/gcc/testsuite/gcc.dg/tree-ssa/prefetch-7.c b/gcc/testsuite/gcc.dg/tree-ssa/prefetch-7.c index 3b9e19f..9e453a7 100644 --- a/gcc/testsuite/gcc.dg/tree-ssa/prefetch-7.c +++ b/gcc/testsuite/gcc.dg/tree-ssa/prefetch-7.c @@ -5,20 +5,12 @@ /* { dg-options "-O2 -fprefetch-loop-arrays -march=athlon -msse2 -mfpmath=sse --param simultaneous-prefetches=100 -fdump-tree-aprefetch-details -fdump-tree-optimized" } */ #define K 1000000 -int a[K], b[K]; +int a[K]; void test(int *p) { unsigned i; - /* Nontemporal store should be used for a. */ - for (i = 0; i < K; i++) - a[i] = 0; - - /* Nontemporal store should be used for a, nontemporal prefetch for b. */ - for (i = 0; i < K; i++) - a[i] = b[i]; - /* Nontemporal store should not be used here (only write and read temporal prefetches). */ for (i = 0; i < K - 10000; i++) @@ -44,18 +36,14 @@ void test(int *p) } /* { dg-final { scan-tree-dump-times "Issued prefetch" 5 "aprefetch" } } */ -/* { dg-final { scan-tree-dump-times "Issued nontemporal prefetch" 3 "aprefetch" } } */ -/* { dg-final { scan-tree-dump-times "a nontemporal store" 2 "aprefetch" } } */ +/* { dg-final { scan-tree-dump-times "Issued nontemporal prefetch" 2 "aprefetch" } } */ +/* { dg-final { scan-tree-dump-times "a nontemporal store" 0 "aprefetch" } } */ -/* { dg-final { scan-tree-dump-times "builtin_prefetch" 8 "optimized" } } */ -/* { dg-final { scan-tree-dump-times "=\\{nt\\}" 18 "optimized" } } */ -/* { dg-final { scan-tree-dump-times "__builtin_ia32_mfence" 2 "optimized" } } */ +/* { dg-final { scan-tree-dump-times "builtin_prefetch" 7 "optimized" } } */ /* { dg-final { scan-assembler-times "prefetchw" 5 } } */ /* { dg-final { scan-assembler-times "prefetcht" 1 } } */ -/* { dg-final { scan-assembler-times "prefetchnta" 2 } } */ -/* { dg-final { scan-assembler-times "movnti" 18 } } */ -/* { dg-final { scan-assembler-times "mfence" 2 } } */ +/* { dg-final { scan-assembler-times "prefetchnta" 1 } } */ /* { dg-final { cleanup-tree-dump "aprefetch" } } */ /* { dg-final { cleanup-tree-dump "optimized" } } */ diff --git a/gcc/testsuite/gcc.dg/tree-ssa/prefetch-8.c b/gcc/testsuite/gcc.dg/tree-ssa/prefetch-8.c new file mode 100644 index 0000000..a05d552 --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/prefetch-8.c @@ -0,0 +1,28 @@ +/* { dg-do compile { target i?86-*-* x86_64-*-* } } */ +/* { dg-require-effective-target ilp32 } */ +/* { dg-require-effective-target sse2 } */ +/* { dg-skip-if "" { i?86-*-* x86_64-*-* } { "-march=*" } { "-march=athlon" } } */ +/* { dg-options "-O2 -fprefetch-loop-arrays -march=athlon -msse2 -mfpmath=sse --param simultaneous-prefetches=100 -fdump-tree-aprefetch-details -fdump-tree-optimized" } */ + +#define K 1000000 +int a[K]; + +void test() +{ + unsigned i; + + /* Nontemporal store should be used for a. */ + for (i = 0; i < K; i++) + a[i] = 0; +} + +/* { dg-final { scan-tree-dump-times "a nontemporal store" 1 "aprefetch" } } */ + +/* { dg-final { scan-tree-dump "=\\{nt\\}" "optimized" } } */ +/* { dg-final { scan-tree-dump-times "__builtin_ia32_mfence" 1 "optimized" } } */ + +/* { dg-final { scan-assembler "movnti" } } */ +/* { dg-final { scan-assembler-times "mfence" 1 } } */ + +/* { dg-final { cleanup-tree-dump "aprefetch" } } */ +/* { dg-final { cleanup-tree-dump "optimized" } } */ diff --git a/gcc/testsuite/gcc.dg/tree-ssa/prefetch-9.c b/gcc/testsuite/gcc.dg/tree-ssa/prefetch-9.c new file mode 100644 index 0000000..eb22a66 --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/prefetch-9.c @@ -0,0 +1,32 @@ +/* { dg-do compile { target i?86-*-* x86_64-*-* } } */ +/* { dg-require-effective-target ilp32 } */ +/* { dg-require-effective-target sse2 } */ +/* { dg-skip-if "" { i?86-*-* x86_64-*-* } { "-march=*" } { "-march=athlon" } } */ +/* { dg-options "-O2 -fprefetch-loop-arrays -march=athlon -msse2 -mfpmath=sse --param simultaneous-prefetches=100 -fdump-tree-aprefetch-details -fdump-tree-optimized" } */ + +#define K 1000000 +int a[K], b[K]; + +void test() +{ + unsigned i; + + /* Nontemporal store should be used for a, nontemporal prefetch for b. */ + for (i = 0; i < K; i++) + a[i] = b[i]; + +} + +/* { dg-final { scan-tree-dump-times "Issued nontemporal prefetch" 1 "aprefetch" } } */ +/* { dg-final { scan-tree-dump-times "a nontemporal store" 1 "aprefetch" } } */ + +/* { dg-final { scan-tree-dump-times "builtin_prefetch" 1 "optimized" } } */ +/* { dg-final { scan-tree-dump "=\\{nt\\}" "optimized" } } */ +/* { dg-final { scan-tree-dump-times "__builtin_ia32_mfence" 1 "optimized" } } */ + +/* { dg-final { scan-assembler-times "prefetchnta" 1 } } */ +/* { dg-final { scan-assembler "movnti" } } */ +/* { dg-final { scan-assembler-times "mfence" 1 } } */ + +/* { dg-final { cleanup-tree-dump "aprefetch" } } */ +/* { dg-final { cleanup-tree-dump "optimized" } } */ -- 1.6.3.3