From e1aeeae90eceed7dff8fb37292df258456f6fdd7 Mon Sep 17 00:00:00 2001
From: Richard Sandiford <rsandifo@redhat.com>
Date: Wed, 22 Sep 2004 07:27:51 +0000
Subject: [PATCH] mips.c (mips_function_value): For o32, o64, n32 and n64, use
FPRs for scalar, complex and vector types only.
* config/mips/mips.c (mips_function_value): For o32, o64, n32 and n64,
use FPRs for scalar, complex and vector types only.
From-SVN: r87848
---
gcc/ChangeLog | 5 +++++
gcc/config/mips/mips.c | 7 +++++++
2 files changed, 12 insertions(+)
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 0902a1dff3ba..dce40399ab27 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2004-09-22 Richard Sandiford <rsandifo@redhat.com>
+
+ * config/mips/mips.c (mips_function_value): For o32, o64, n32 and n64,
+ use FPRs for scalar, complex and vector types only.
+
2004-09-21 Jeff Law <law@redhat.com>
* tree-ssa-dom.c (opt_stats): Move so that it lives just after
diff --git a/gcc/config/mips/mips.c b/gcc/config/mips/mips.c
index c564f4e7f186..a1de622dbbf6 100644
--- a/gcc/config/mips/mips.c
+++ b/gcc/config/mips/mips.c
@@ -6764,6 +6764,13 @@ mips_function_value (tree valtype, tree func ATTRIBUTE_UNUSED,
mode = mode_for_size (size * BITS_PER_UNIT, MODE_INT, 0);
}
}
+
+ /* For EABI, the class of return register depends entirely on MODE.
+ For example, "struct { some_type x; }" and "union { some_type x; }"
+ are returned in the same way as a bare "some_type" would be.
+ Other ABIs only use FPRs for scalar, complex or vector types. */
+ if (mips_abi != ABI_EABI && !FLOAT_TYPE_P (valtype))
+ return gen_rtx_REG (mode, GP_RETURN);
}
if ((GET_MODE_CLASS (mode) == MODE_FLOAT
--
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