From cebc182b78fd3be5396fb772f3b12a9096fc73ab Mon Sep 17 00:00:00 2001
From: Oleg Endo <oleg.endo@t-online.de>
Date: Tue, 29 Nov 2011 22:52:55 +0000
Subject: [PATCH] re PR target/51337 (SH Target: Various testsuite ICEs for
-m2a -O0)
PR target/51337
* config/sh/sh.c (sh_secondary_reload): Add case when FPUL
register is being loaded from a pseudo in memory.
From-SVN: r181823
---
gcc/ChangeLog | 6 ++++++
gcc/config/sh/sh.c | 8 ++++++++
2 files changed, 14 insertions(+)
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 6ac5db9183f8..587a627ce061 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2011-11-29 Oleg Endo <oleg.endo@t-online.de>
+
+ PR target/51337
+ * config/sh/sh.c (sh_secondary_reload): Add case when FPUL
+ register is being loaded from a pseudo in memory.
+
2011-11-29 DJ Delorie <dj@redhat.com>
* config.gcc (rl78-*-elf): New case.
diff --git a/gcc/config/sh/sh.c b/gcc/config/sh/sh.c
index 2545a63e7244..870c39f2602b 100644
--- a/gcc/config/sh/sh.c
+++ b/gcc/config/sh/sh.c
@@ -12432,6 +12432,14 @@ sh_secondary_reload (bool in_p, rtx x, reg_class_t rclass_i,
if (rclass != GENERAL_REGS && REG_P (x)
&& TARGET_REGISTER_P (REGNO (x)))
return GENERAL_REGS;
+
+ /* If here fall back to loading FPUL register through general registers.
+ This case can happen when movsi_ie insn is picked initially to
+ load/store the FPUL register from/to another register, and then the
+ other register is allocated on the stack. */
+ if (rclass == FPUL_REGS && true_regnum (x) == -1)
+ return GENERAL_REGS;
+
return NO_REGS;
}
--
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