From 2ff12653cd4bb6be8f92badf7fed6cae001ceb3b Mon Sep 17 00:00:00 2001 From: Jakub Jelinek Date: Wed, 23 Nov 2011 21:29:08 +0100 Subject: [PATCH] re PR target/51261 (-fcompare-debug with memset()) PR target/51261 * config/i386/i386.c (decide_alg): Initialize *dynamic_check even if !optimize. * gcc.dg/pr51261.c: New test. From-SVN: r181676 --- gcc/ChangeLog | 6 ++++++ gcc/config/i386/i386.c | 2 +- gcc/testsuite/ChangeLog | 5 +++++ gcc/testsuite/gcc.dg/pr51261.c | 9 +++++++++ 4 files changed, 21 insertions(+), 1 deletion(-) create mode 100644 gcc/testsuite/gcc.dg/pr51261.c diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 96a74f05e36..e678a7ad8ee 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2011-11-23 Jakub Jelinek + + PR target/51261 + * config/i386/i386.c (decide_alg): Initialize *dynamic_check + even if !optimize. + 2011-11-23 Vladimir Makarov PR rtl-optimization/48455 diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c index 34368203cd9..866cdd63f7a 100644 --- a/gcc/config/i386/i386.c +++ b/gcc/config/i386/i386.c @@ -22106,12 +22106,12 @@ decide_alg (HOST_WIDE_INT count, HOST_WIDE_INT expected_size, bool memset, else optimize_for_speed = true; + *dynamic_check = -1; if (!optimize) return (rep_prefix_usable ? rep_prefix_1_byte : libcall); cost = optimize_for_speed ? ix86_cost : &ix86_size_cost; - *dynamic_check = -1; if (memset) algs = &cost->memset[align_unknown][TARGET_64BIT != 0]; else diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 9b3b01f97ef..4be809d22d2 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2011-11-23 Jakub Jelinek + + PR target/51261 + * gcc.dg/pr51261.c: New test. + 2011-11-22 Dodji Seketeli PR c++/51145 diff --git a/gcc/testsuite/gcc.dg/pr51261.c b/gcc/testsuite/gcc.dg/pr51261.c new file mode 100644 index 00000000000..b599a6b7db8 --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr51261.c @@ -0,0 +1,9 @@ +/* PR target/51261 */ +/* { dg-do compile } */ +/* { dg-options "-fcompare-debug" } */ + +void +foo (void *p, int n) +{ + __builtin_memset (p, 0xff, n); +} -- 2.30.2