From 03f941bd586d6a380ea989e57986b6de6d1b96e9 Mon Sep 17 00:00:00 2001 From: Oleg Endo Date: Thu, 11 Feb 2016 09:12:18 +0000 Subject: gcc/ PR target/69713 * config/sh/sh.md (casesi_worker_0): Add T_REG use. git-svn-id: https://gcc.gnu.org/svn/gcc/trunk@233324 138bc75d-0d04-0410-961f-82ee72b054a4 --- gcc/ChangeLog | 5 +++++ gcc/config/sh/sh.md | 12 +++++++++--- 2 files changed, 14 insertions(+), 3 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 6037782465c..7ca86d621b4 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2016-02-11 Oleg Endo + + PR target/69713 + * config/sh/sh.md (casesi_worker_0): Add T_REG use. + 2016-02-11 Richard Biener PR rtl-optimization/69291 diff --git a/gcc/config/sh/sh.md b/gcc/config/sh/sh.md index 1b2523e3511..203215a1787 100644 --- a/gcc/config/sh/sh.md +++ b/gcc/config/sh/sh.md @@ -11707,12 +11707,16 @@ label: ;; ??? reload might clobber r0 if we use it explicitly in the RTL before ;; reload; using a R0_REGS pseudo reg is likely to give poor code. ;; So we keep the use of r0 hidden in a R0_REGS clobber until after reload. +;; +;; The use on the T_REG in the casesi_worker* patterns links the bounds +;; checking insns and the table memory access. See also PR 69713. (define_insn "casesi_worker_0" [(set (match_operand:SI 0 "register_operand" "=r,r") (unspec:SI [(match_operand:SI 1 "register_operand" "0,r") (label_ref (match_operand 2 "" ""))] UNSPEC_CASESI)) (clobber (match_scratch:SI 3 "=X,1")) - (clobber (match_scratch:SI 4 "=&z,z"))] + (clobber (match_scratch:SI 4 "=&z,z")) + (use (reg:SI T_REG))] "TARGET_SH1" "#") @@ -11721,7 +11725,8 @@ label: (unspec:SI [(match_operand:SI 1 "register_operand" "") (label_ref (match_operand 2 "" ""))] UNSPEC_CASESI)) (clobber (match_scratch:SI 3 "")) - (clobber (match_scratch:SI 4 ""))] + (clobber (match_scratch:SI 4)) + (use (reg:SI T_REG))] "TARGET_SH1 && ! TARGET_SH2 && reload_completed" [(set (reg:SI R0_REG) (unspec:SI [(label_ref (match_dup 2))] UNSPEC_MOVA)) (parallel [(set (match_dup 0) @@ -11739,7 +11744,8 @@ label: (unspec:SI [(match_operand:SI 1 "register_operand" "") (label_ref (match_operand 2 "" ""))] UNSPEC_CASESI)) (clobber (match_scratch:SI 3 "")) - (clobber (match_scratch:SI 4 ""))] + (clobber (match_scratch:SI 4)) + (use (reg:SI T_REG))] "TARGET_SH2 && reload_completed" [(set (reg:SI R0_REG) (unspec:SI [(label_ref (match_dup 2))] UNSPEC_MOVA)) (parallel [(set (match_dup 0) -- cgit v1.2.3