From 6291c6fd1243d722e144466921064d47fb50428b Mon Sep 17 00:00:00 2001 From: Khem Raj Date: Tue, 15 May 2012 14:45:57 -0700 Subject: gcc-4.5: Remove Signed-off-by: Khem Raj --- .../recipes-devtools/gcc/gcc-4.5/pr30961.dpatch | 179 --------------------- 1 file changed, 179 deletions(-) delete mode 100644 toolchain-layer/recipes-devtools/gcc/gcc-4.5/pr30961.dpatch (limited to 'toolchain-layer/recipes-devtools/gcc/gcc-4.5/pr30961.dpatch') diff --git a/toolchain-layer/recipes-devtools/gcc/gcc-4.5/pr30961.dpatch b/toolchain-layer/recipes-devtools/gcc/gcc-4.5/pr30961.dpatch deleted file mode 100644 index b20fdf5bf5..0000000000 --- a/toolchain-layer/recipes-devtools/gcc/gcc-4.5/pr30961.dpatch +++ /dev/null @@ -1,179 +0,0 @@ -#! /bin/sh -e - -# DP: - -dir= -if [ $# -eq 3 -a "$2" = '-d' ]; then - pdir="-d $3" - dir="$3/" -elif [ $# -ne 1 ]; then - echo >&2 "`basename $0`: script expects -patch|-unpatch as argument" - exit 1 -fi -case "$1" in - -patch) - patch $pdir -f --no-backup-if-mismatch -p0 < $0 - ;; - -unpatch) - patch $pdir -f --no-backup-if-mismatch -R -p0 < $0 - ;; - *) - echo >&2 "`basename $0`: script expects -patch|-unpatch as argument" - exit 1 -esac -exit 0 - -From: "H.J. Lu" -Sender: gcc-patches-owner@gcc.gnu.org -To: gcc-patches@gcc.gnu.org -Subject: PATCH: PR target/30961: [4.1/4.2/4.3 regression] redundant reg/mem stores/moves -Date: Mon, 27 Aug 2007 11:34:12 -0700 - -We start with - -(note:HI 3 4 22 2 NOTE_INSN_FUNCTION_BEG) - -(insn:HI 6 3 10 2 c.c:3 (set (reg:DF 58 [ ]) - (subreg:DF (reg/v:DI 59 [ in ]) 0)) 102 {*movdf_integer_rex64} (expr_list:REG_DEAD (reg/v:DI 59 [ in ]) - (nil))) - -(insn:HI 10 6 16 2 c.c:7 (set (reg/i:DF 21 xmm0 [ ]) - (reg:DF 58 [ ])) 102 {*movdf_integer_rex64} (expr_list:REG_DEAD (reg:DF 58 [ ]) - (nil))) - -(insn:HI 16 10 0 2 c.c:7 (use (reg/i:DF 21 xmm0 [ ])) -1 (nil)) - -we are trying to allocate registers for insn 6 and we allocate -xmm0 for the return value. Reload doesn't check if xmm0 can be used for -DF 59, it allocates xmm1 for DF 59 and generates: - -Reloads for insn # 6 -Reload 0: reload_in (DF) = (reg:DF 5 di) - SSE_REGS, RELOAD_FOR_INPUT (opnum = 1), can't combine - reload_in_reg: (subreg:DF (reg/v:DI 5 di [orig:59 in ] [59]) 0) - reload_reg_rtx: (reg:DF 22 xmm1) -... - -(note:HI 4 1 3 2 [bb 2] NOTE_INSN_BASIC_BLOCK) - -(note:HI 3 4 22 2 NOTE_INSN_FUNCTION_BEG) - -(insn 22 3 23 2 c.c:3 (set (mem/c:DF (plus:DI (reg/f:DI 7 sp) - (const_int -8 [0xfffffffffffffff8])) [0 S8 A8]) - (reg:DF 5 di)) 102 {*movdf_integer_rex64} (nil)) - -(insn 23 22 6 2 c.c:3 (set (reg:DF 22 xmm1) - (mem/c:DF (plus:DI (reg/f:DI 7 sp) - (const_int -8 [0xfffffffffffffff8])) [0 S8 A8])) 102 {*movdf_integer_rex64} (nil)) - -(insn:HI 6 23 16 2 c.c:3 (set (reg:DF 21 xmm0 [orig:58 ] [58]) - (reg:DF 22 xmm1)) 102 {*movdf_integer_rex64} (nil)) - -(insn 16 6 21 2 c.c:7 (use (reg/i:DF 21 xmm0 [ ])) -1 (nil)) - -This patch tries to use the destination register when reloading for input. It -generates - -Reloads for insn # 6 -Reload 0: reload_in (DF) = (reg:DF 5 di) - SSE_REGS, RELOAD_FOR_INPUT (opnum = 1), can't combine - reload_in_reg: (subreg:DF (reg/v:DI 5 di [orig:59 in ] [59]) 0) - reload_reg_rtx: (reg:DF 21 xmm0) -... -(note:HI 4 1 3 2 [bb 2] NOTE_INSN_BASIC_BLOCK) - -(note:HI 3 4 22 2 NOTE_INSN_FUNCTION_BEG) - -(insn 22 3 23 2 c.c:3 (set (mem/c:DF (plus:DI (reg/f:DI 7 sp) - (const_int -8 [0xfffffffffffffff8])) [0 S8 A8]) - (reg:DF 5 di)) 102 {*movdf_integer_rex64} (nil)) - -(insn 23 22 6 2 c.c:3 (set (reg:DF 21 xmm0) - (mem/c:DF (plus:DI (reg/f:DI 7 sp) - (const_int -8 [0xfffffffffffffff8])) [0 S8 A8])) 102 {*movdf_integer_rex64} (nil)) - -(insn:HI 6 23 10 2 c.c:3 (set (reg:DF 22 xmm1 [orig:58 ] [58]) - (reg:DF 21 xmm0)) 102 {*movdf_integer_rex64} (nil)) - -(insn:HI 10 6 16 2 c.c:7 (set (reg/i:DF 21 xmm0 [ ]) - (reg:DF 22 xmm1 [orig:58 ] [58])) 102 {*movdf_integer_rex64} (nil)) - -(insn 16 10 21 2 c.c:7 (use (reg/i:DF 21 xmm0 [ ])) -1 (nil)) - - -H.J. ----- -gcc/ - -2007-08-27 H.J. Lu - - PR target/30961 - * reload1.c (find_reg): Favor the hard register in destination - if it is usable and a memory location is needed for reload - input. - -gcc/testsuite/ - -2007-08-27 H.J. Lu - - PR target/30961 - * gcc.target/i386/pr30961-1.c: New. - ---- gcc/reload1.c.second 2007-08-27 09:35:08.000000000 -0700 -+++ gcc/reload1.c 2007-08-27 09:36:33.000000000 -0700 -@@ -1781,6 +1781,20 @@ find_reg (struct insn_chain *chain, int - HARD_REG_SET not_usable; - HARD_REG_SET used_by_other_reload; - reg_set_iterator rsi; -+#ifdef SECONDARY_MEMORY_NEEDED -+ rtx body = PATTERN (chain->insn); -+ unsigned int dest_reg = FIRST_PSEUDO_REGISTER; -+ -+ if (GET_CODE (body) == SET) -+ { -+ rtx dest = SET_DEST (body); -+ -+ if ((REG_P (dest) -+ || (GET_CODE (dest) == SUBREG -+ && REG_P (SUBREG_REG (dest))))) -+ dest_reg = reg_or_subregno (dest); -+ } -+#endif - - COPY_HARD_REG_SET (not_usable, bad_spill_regs); - IOR_HARD_REG_SET (not_usable, bad_spill_regs_global); -@@ -1821,6 +1835,18 @@ find_reg (struct insn_chain *chain, int - this_cost--; - if (rl->out && REG_P (rl->out) && REGNO (rl->out) == regno) - this_cost--; -+#ifdef SECONDARY_MEMORY_NEEDED -+ /* If a memory location is needed for rl->in and dest_reg -+ is usable, we will favor it. */ -+ else if (dest_reg == regno -+ && rl->in -+ && REG_P (rl->in) -+ && REGNO (rl->in) < FIRST_PSEUDO_REGISTER -+ && SECONDARY_MEMORY_NEEDED (REGNO_REG_CLASS (REGNO (rl->in)), -+ rl->class, -+ rl->mode)) -+ this_cost = 0; -+#endif - if (this_cost < best_cost - /* Among registers with equal cost, prefer caller-saved ones, or - use REG_ALLOC_ORDER if it is defined. */ ---- gcc/testsuite/gcc.target/i386/pr30961-1.c.second 2007-08-27 11:01:59.000000000 -0700 -+++ gcc/testsuite/gcc.target/i386/pr30961-1.c 2007-08-27 11:02:51.000000000 -0700 -@@ -0,0 +1,13 @@ -+/* { dg-do compile } */ -+/* { dg-require-effective-target lp64 } */ -+/* { dg-options "-O2" } */ -+ -+double -+convert (long long in) -+{ -+ double f; -+ __builtin_memcpy( &f, &in, sizeof( in ) ); -+ return f; -+} -+ -+/* { dg-final { scan-assembler-not "movapd" } } */ -- cgit 1.2.3-korg