From: Andrey Belevantsev Date: Tue, 9 Sep 2008 14:19:31 +0000 (+0400) Subject: re PR rtl-optimization/37360 (ICE in haifa-sched.c when compiling __popcountsi2 from... X-Git-Tag: releases/gcc-4.4.0~2547 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=bff5a22dc49b3f4fcac70a4e936c5b6db3808883;p=thirdparty%2Fgcc.git re PR rtl-optimization/37360 (ICE in haifa-sched.c when compiling __popcountsi2 from libgcc) PR rtl-optimization/37360 * haifa-sched.c (max_issue): Do not assert that we never issue more insns than issue_rate. Add comment. From-SVN: r140151 --- diff --git a/gcc/ChangeLog b/gcc/ChangeLog index edde7b70cc1f..2c907942d747 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2008-09-09 Andrey Belevantsev + + PR rtl-optimization/37360 + * haifa-sched.c (max_issue): Do not assert that we never issue more + insns than issue_rate. Add comment. + 2008-09-09 Richard Guenther * tree-cfg.c (verify_types_in_gimple_op): Remove. diff --git a/gcc/haifa-sched.c b/gcc/haifa-sched.c index 833e1552b316..db9b54a9d878 100644 --- a/gcc/haifa-sched.c +++ b/gcc/haifa-sched.c @@ -2071,7 +2071,14 @@ max_issue (struct ready_list *ready, int privileged_n, state_t state, /* Init max_points. */ max_points = 0; more_issue = issue_rate - cycle_issued_insns; - gcc_assert (more_issue >= 0); + + /* ??? We used to assert here that we never issue more insns than issue_rate. + However, some targets (e.g. MIPS/SB1) claim lower issue rate than can be + achieved to get better performance. Until these targets are fixed to use + scheduler hooks to manipulate insns priority instead, the assert should + be disabled. + + gcc_assert (more_issue >= 0); */ for (i = 0; i < n_ready; i++) if (!ready_try [i])