From 5ec03dc1f80e437d5660aa3e0c7db9b561603d49 Mon Sep 17 00:00:00 2001 From: Ilya Yanok Date: Tue, 19 Jul 2011 03:00:55 +0200 Subject: gcc_4.5.1: add pr44606.patch Add fix for PR44606 as proposed in http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44606 Signed-off-by: Ilya Yanok --- meta/recipes-devtools/gcc/gcc-4.5.1/pr44606.patch | 106 ++++++++++++++++++++++ 1 file changed, 106 insertions(+) create mode 100644 meta/recipes-devtools/gcc/gcc-4.5.1/pr44606.patch (limited to 'meta/recipes-devtools/gcc/gcc-4.5.1') diff --git a/meta/recipes-devtools/gcc/gcc-4.5.1/pr44606.patch b/meta/recipes-devtools/gcc/gcc-4.5.1/pr44606.patch new file mode 100644 index 000000000..dd590bbe8 --- /dev/null +++ b/meta/recipes-devtools/gcc/gcc-4.5.1/pr44606.patch @@ -0,0 +1,106 @@ +From aff0ca6587a2f0849db55eef62a85bc8721869f2 Mon Sep 17 00:00:00 2001 +From: froydnj +Date: Tue, 1 Feb 2011 02:11:54 +0000 +Subject: [PATCH 3/6] gcc/ Backport from mainline: 2010-12-30 Nathan Froyd + + PR target/44606 + * reload1.c (choose_reload_regs): Don't look for equivalences for + output reloads of constant loads. + +gcc/testsuite/ + Backport from mainline: + 2010-12-30 Nathan Froyd + + PR target/44606 + * gcc.dg/pr44606.c: New test. + +git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-4_4-branch@169465 138bc75d-0d04-0410-961f-82ee72b054a4 +--- + gcc/reload1.c | 11 -------- + gcc/testsuite/gcc.dg/pr44606.c | 52 ++++++++++++++++++++++++++++++++++++++++ + 2 files changed, 52 insertions(+), 11 deletions(-) + create mode 100644 gcc/testsuite/gcc.dg/pr44606.c + +diff --git a/gcc/reload1.c b/gcc/reload1.c +index 02fef2d..5732677 100644 +--- a/gcc/reload1.c ++++ b/gcc/reload1.c +@@ -6273,17 +6273,6 @@ choose_reload_regs (struct insn_chain *chain) + && (rld[r].nregs == max_group_size + || ! reg_classes_intersect_p (rld[r].rclass, group_class))) + search_equiv = rld[r].in; +- /* If this is an output reload from a simple move insn, look +- if an equivalence for the input is available. */ +- else if (inheritance && rld[r].in == 0 && rld[r].out != 0) +- { +- rtx set = single_set (insn); +- +- if (set +- && rtx_equal_p (rld[r].out, SET_DEST (set)) +- && CONSTANT_P (SET_SRC (set))) +- search_equiv = SET_SRC (set); +- } + + if (search_equiv) + { +diff --git a/gcc/testsuite/gcc.dg/pr44606.c b/gcc/testsuite/gcc.dg/pr44606.c +new file mode 100644 +index 0000000..3929775 +--- /dev/null ++++ b/gcc/testsuite/gcc.dg/pr44606.c +@@ -0,0 +1,52 @@ ++/* PR target/44606 */ ++/* { dg-do run } */ ++/* { dg-options "-O2" } */ ++ ++#include ++ ++extern void abort (void); ++ ++ typedef struct _PixelPacket { unsigned char r, g, b; } ++ PixelPacket; ++#define ARRAYLEN(X) (sizeof(X)/sizeof(X[0])) ++PixelPacket q[6]; ++#define COLS (ARRAYLEN(q) - 1) ++PixelPacket p[2*COLS + 22]; ++#define Minify(POS, WEIGHT) do { \ ++ total_r += (WEIGHT)*(p[POS].r); \ ++ total_g += (WEIGHT)*(p[POS].g); \ ++ total_b += (WEIGHT)*(p[POS].b); \ ++} while (0) ++unsigned long columns = COLS; ++int main(void) ++{ ++ static const unsigned char answers[COLS] = { 31, 32, 34, 35, 36 }; ++ unsigned long x; ++ for (x = 0; x < sizeof(p)/sizeof(p[0]); x++) { ++ p[x].b = (x + 34) | 1; ++ } ++ for (x = 0; x < columns; x++) { ++ double total_r = 0, total_g = 0, total_b = 0; ++ double saved_r = 0, saved_g = 0, saved_b = 0; ++ Minify(2*x + 0, 3.0); ++ Minify(2*x + 1, 7.0); ++ Minify(2*x + 2, 7.0); ++ saved_r = total_r; ++ saved_g = total_g; ++ Minify(2*x + 11, 15.0); ++ Minify(2*x + 12, 7.0); ++ Minify(2*x + 18, 7.0); ++ Minify(2*x + 19, 15.0); ++ Minify(2*x + 20, 15.0); ++ Minify(2*x + 21, 7.0); ++ q[x].r = (unsigned char)(total_r/128.0 + 0.5); ++ q[x].g = (unsigned char)(total_g/128.0 + 0.5); ++ q[x].b = (unsigned char)(total_b/128.0 + 0.5); ++ fprintf(stderr, "r:%f g:%f b:%f\n", saved_r, saved_g, saved_b); ++ } ++ for (x = 0; x < COLS; x++) { ++ if (answers[x] != q[x].b) ++ abort(); ++ } ++ return 0; ++} +-- +1.7.4 + -- cgit v1.2.3