From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; 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. --- gcc/testsuite/gcc.dg/tree-ssa/pr38699.c | 76 +++++++++++++++++++++++++++++++++ 1 file changed, 76 insertions(+) create mode 100644 gcc/testsuite/gcc.dg/tree-ssa/pr38699.c (limited to 'gcc/testsuite/gcc.dg/tree-ssa/pr38699.c') diff --git a/gcc/testsuite/gcc.dg/tree-ssa/pr38699.c b/gcc/testsuite/gcc.dg/tree-ssa/pr38699.c new file mode 100644 index 000000000..6845324e4 --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/pr38699.c @@ -0,0 +1,76 @@ +/* { dg-do compile } */ +/* { dg-options "-Os -fdump-tree-optimized" } */ +/* + * License: GPL + * Copyright: (c) 2007 by Till Harbaum + * Copyright: (c) 2008 Wolfgang Moser, http://d81.de + */ + +/* #include */ +/* some declarations from the include above for ATMega8 */ +#define _SFR_IO8(io_addr) (*(volatile unsigned char *)((io_addr) + 0x20)) +#define TOV0 0 +#define TCNT0 _SFR_IO8(0x32) +#define TIFR _SFR_IO8(0x38) +#define DDRC _SFR_IO8(0x14) +#define DDRD _SFR_IO8(0x11) +#define PORTC _SFR_IO8(0x15) +#define PORTD _SFR_IO8(0x12) + +static void delay_wait_us( unsigned char timeout ) { + __asm__ __volatile__ ("wdr"); + + TCNT0 = timeout; + TIFR |= (1 << (TOV0)); + + /* wait until counter overflows */ + while(!(TIFR & (1 << (TOV0)))); +} + +static void delay_wait_us_ms( unsigned char timeout ) { + delay_wait_us( timeout * 1000 ); +} + + +void makeUseOfTimerWait( unsigned char val ) { + delay_wait_us( 10 ); + DDRC |= 0x10; + delay_wait_us( 10 ); + DDRD |= 0x20; + + delay_wait_us( 20 ); + PORTC &= ~0x10; + delay_wait_us( 10 ); + PORTD &= ~0x20; + + delay_wait_us_ms( 5 ); + delay_wait_us_ms( 5 ); + delay_wait_us_ms( 5 ); + delay_wait_us_ms( 5 ); + delay_wait_us_ms( 5 ); + delay_wait_us_ms( 5 ); + delay_wait_us_ms( 5 ); + delay_wait_us_ms( 5 ); + delay_wait_us_ms( 5 ); + delay_wait_us_ms( 5 ); + delay_wait_us_ms( 5 ); + delay_wait_us_ms( 5 ); + delay_wait_us_ms( 5 ); + delay_wait_us_ms( 5 ); + delay_wait_us_ms( 5 ); + delay_wait_us_ms( 5 ); + delay_wait_us_ms( 5 ); + delay_wait_us_ms( 5 ); + delay_wait_us_ms( 5 ); + delay_wait_us_ms( 5 ); + + PORTC |= val & 0x10; + delay_wait_us( 10 ); + PORTD |= val & 0x20; + + delay_wait_us( 10 ); +} +/* We should not inline the delay loops. */ +/* { dg-final { scan-tree-dump "delay_wait_us" "optimized"} } */ +/* { dg-final { scan-tree-dump "delay_wait_us_ms" "optimized"} } */ +/* { dg-final { cleanup-tree-dump "optimized" } } */ -- cgit v1.2.3