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authorRichard Sandiford <rsandifo@nildram.co.uk>2007-09-23 19:20:01 +0000
committerRichard Sandiford <rsandifo@gcc.gnu.org>2007-09-23 19:20:01 +0000
commit50b73fcde42694209997f01f9985dc5928a86fca (patch)
treea8648e832edade747b376a4adc7c7e6d63a494aa /gcc
parente9276c30128632a6578dcf011caddedda6acf48e (diff)
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mips.c (build_mips16_call_stub): On 64-bit targets, combine an SC return value into a single register.
gcc/ * config/mips/mips.c (build_mips16_call_stub): On 64-bit targets, combine an SC return value into a single register. From-SVN: r128700
Diffstat (limited to 'gcc')
-rw-r--r--gcc/ChangeLog5
-rw-r--r--gcc/config/mips/mips.c13
2 files changed, 18 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 639dc8e..2837ede 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,10 @@
2007-09-23 Richard Sandiford <rsandifo@nildram.co.uk>
+ * config/mips/mips.c (build_mips16_call_stub): On 64-bit targets,
+ combine an SC return value into a single register.
+
+2007-09-23 Richard Sandiford <rsandifo@nildram.co.uk>
+
* opth-gen.awk (target_flags_explicit): Declare.
* toplev.h (target_flags_explicit): Delete declaration.
* toplev.c (target_flags): Likewise.
diff --git a/gcc/config/mips/mips.c b/gcc/config/mips/mips.c
index e6b17a5..39d5e37 100644
--- a/gcc/config/mips/mips.c
+++ b/gcc/config/mips/mips.c
@@ -10055,6 +10055,19 @@ build_mips16_call_stub (rtx retval, rtx fn, rtx arg_size, int fp_code)
fprintf (asm_out_file, "\tmfc1\t%s,%s\n",
reg_names[GP_REG_FIRST + 2],
reg_names[FP_REG_FIRST + 0]);
+ if (GET_MODE (retval) == SCmode && TARGET_64BIT)
+ {
+ /* On 64-bit targets, complex floats are returned in
+ a single GPR, such that "sd" on a suitably-aligned
+ target would store the value correctly. */
+ fprintf (asm_out_file, "\tdsll\t%s,%s,32\n",
+ reg_names[GP_REG_FIRST + 2 + TARGET_LITTLE_ENDIAN],
+ reg_names[GP_REG_FIRST + 2 + TARGET_LITTLE_ENDIAN]);
+ fprintf (asm_out_file, "\tor\t%s,%s,%s\n",
+ reg_names[GP_REG_FIRST + 2],
+ reg_names[GP_REG_FIRST + 2],
+ reg_names[GP_REG_FIRST + 3]);
+ }
break;
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