From e95873dd5bbab240f64c4ab8138646ead2e3bdfc Mon Sep 17 00:00:00 2001 From: Kaz Kojima Date: Wed, 1 Jun 2011 22:36:08 +0000 Subject: [PATCH] sh.c (expand_cbranchdi4): Use a scratch register if needed when original operands are used for msw_skip... * config/sh/sh.c (expand_cbranchdi4): Use a scratch register if needed when original operands are used for msw_skip comparison. * gcc.c-torture/compile/pr49238.c: New. From-SVN: r174550 --- gcc/ChangeLog | 6 ++++++ gcc/config/sh/sh.c | 7 +++++++ gcc/testsuite/ChangeLog | 5 +++++ gcc/testsuite/gcc.c-torture/compile/pr49238.c | 18 ++++++++++++++++++ 4 files changed, 36 insertions(+) create mode 100644 gcc/testsuite/gcc.c-torture/compile/pr49238.c diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 6483324ca94..9b9fc4179db 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2011-06-01 Kaz Kojima + + PR target/49238 + * config/sh/sh.c (expand_cbranchdi4): Use a scratch register if + needed when original operands are used for msw_skip comparison. + 2011-06-01 Jakub Jelinek PR debug/49250 diff --git a/gcc/config/sh/sh.c b/gcc/config/sh/sh.c index fb204c648e9..c5fbd569602 100644 --- a/gcc/config/sh/sh.c +++ b/gcc/config/sh/sh.c @@ -2199,6 +2199,13 @@ expand_cbranchdi4 (rtx *operands, enum rtx_code comparison) { operands[1] = op1h; operands[2] = op2h; + if (reload_completed + && ! arith_reg_or_0_operand (op2h, SImode) + && (true_regnum (op1h) || (comparison != EQ && comparison != NE))) + { + emit_move_insn (scratch, operands[2]); + operands[2] = scratch; + } } operands[3] = skip_label = gen_label_rtx (); diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 37a1dc64bf6..a611a29f406 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2011-06-01 Kaz Kojima + + PR target/49238 + * gcc.c-torture/compile/pr49238.c: New. + 2011-06-01 Sofiane Naci * gcc.target/arm/g2.c: Skip test in -mthumb. diff --git a/gcc/testsuite/gcc.c-torture/compile/pr49238.c b/gcc/testsuite/gcc.c-torture/compile/pr49238.c new file mode 100644 index 00000000000..fd8443a8f08 --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/compile/pr49238.c @@ -0,0 +1,18 @@ +/* PR target/49238 */ +extern int bar (void); + +void +foo (unsigned long long a, int b) +{ + int i; + + if (b) + for (a = -12; a >= 10; a = bar ()) + break; + else + return; + + for (i = 0; i < 10; i += 10) + if ((i == bar ()) | (bar () >= a)) + bar (); +} -- 2.30.2