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/debug/debug-1.c | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 gcc/testsuite/gcc.dg/debug/debug-1.c (limited to 'gcc/testsuite/gcc.dg/debug/debug-1.c') diff --git a/gcc/testsuite/gcc.dg/debug/debug-1.c b/gcc/testsuite/gcc.dg/debug/debug-1.c new file mode 100644 index 000000000..35b5c91b1 --- /dev/null +++ b/gcc/testsuite/gcc.dg/debug/debug-1.c @@ -0,0 +1,34 @@ +/* Verify that the scheduler does not discard the lexical block. */ +/* { dg-do compile } */ +/* { dg-options "-dA" } */ +/* On MIPS targets that support conditional moves, the optimal + implementation of this function is: + + l[wd] tmp,p + li $2,2 + jr $31 + movz $2,$0,tmp + + After if-conversion, we have a conditional move into a pseudo P + followed a copy of P into the return register ($2). P is associated + with xyzzy, so if-conversion is behaving as expected, and has not lost + the variable association. The destination of the second instruction + is associated with the function return value. Combine then combines + these two instructions, removing the last use of P and xyzzy. + + Everything is behaving as expected in this scenario, so we avoid + using conditional moves for this test. */ +/* { dg-options "-dA -fno-if-conversion" { target mips*-*-* } } */ +/* { dg-final { scan-assembler "xyzzy" } } */ + +long p; + +long foo(void) +{ + { + long xyzzy = 0; + if (p) + xyzzy = 2; + return xyzzy; + } +} -- cgit v1.2.3