From 698ef65e2fee6c848f3b6ae0bf4a099c811e0022 Mon Sep 17 00:00:00 2001 From: Richard Biener Date: Wed, 5 Dec 2012 09:59:08 +0000 Subject: [PATCH] re PR tree-optimization/50222 (ICE with -O{1,2} -funswitch-loops -ftree-loop-distribution) 2012-12-05 Richard Biener PR tree-optimization/50222 * gcc.dg/torture/pr50222.c: New testcase. From-SVN: r194188 --- gcc/testsuite/ChangeLog | 5 +++++ gcc/testsuite/gcc.dg/torture/pr50222.c | 31 ++++++++++++++++++++++++++ 2 files changed, 36 insertions(+) create mode 100644 gcc/testsuite/gcc.dg/torture/pr50222.c diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index ba114ee2b37..b04fee3909d 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2012-12-05 Richard Biener + + PR tree-optimization/50222 + * gcc.dg/torture/pr50222.c: New testcase. + 2012-12-05 Richard Biener PR lto/55525 diff --git a/gcc/testsuite/gcc.dg/torture/pr50222.c b/gcc/testsuite/gcc.dg/torture/pr50222.c new file mode 100644 index 00000000000..f534d8960be --- /dev/null +++ b/gcc/testsuite/gcc.dg/torture/pr50222.c @@ -0,0 +1,31 @@ +/* { dg-do compile } */ +/* { dg-options "-funswitch-loops -ftree-loop-distribution" } */ + +typedef struct AVProgram { + void *priv_data; + unsigned int nb_streams; +} AVFormatContext; +typedef struct { + unsigned short flags; + unsigned char stream_id; +} FrameCode; +typedef struct { + FrameCode frame_code[256]; +} NUTContext; +void build_frame_code(AVFormatContext *s, int stream_id, + int is_audio, int pred_count) +{ + NUTContext *nut = s->priv_data; + int keyframe_0_esc = s->nb_streams > 2; + int start2 = 1 + 253*stream_id / s->nb_streams; + int key_frame; + for(key_frame=0; key_frame<2; key_frame++) + { + FrameCode *ft; + if (is_audio && keyframe_0_esc && key_frame==0) + continue; + ft= &nut->frame_code[start2]; + ft->flags|= 3; + ft->stream_id= stream_id; + } +} -- 2.30.2