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backport: re PR target/52775 (Change default for using FCFID instruction) 

[gcc]
2012-04-12  Michael Meissner  <meissner@linux.vnet.ibm.com>

	Backport from mainline
	2012-04-12  Michael Meissner  <meissner@linux.vnet.ibm.com>

	PR target/52775
	* config/rs6000/rs6000.h (TARGET_FCFID): Add TARGET_PPC_GPOPT to
	the list of options to enable the FCFID instruction.
	(TARGET_EXTRA_BUILTINS): Adjust comment.

[gcc/testsuite]
012-04-12  Michael Meissner  <meissner@linux.vnet.ibm.com>

	Backport from mainline
	2012-04-12  Michael Meissner  <meissner@linux.vnet.ibm.com>

	PR target/52775
	* gcc.target/powerpc/pr52775.c: New file.

From-SVN: r186392
This commit is contained in:
Michael Meissner 2012-04-12 21:00:07 +00:00 committed by Michael Meissner
parent 1d64ea88d1
commit a3807e4f1f
4 changed files with 41 additions and 6 deletions
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12
gcc/ChangeLog
View File

@ -1,3 +1,13 @@
2012-04-12 Michael Meissner <meissner@linux.vnet.ibm.com>
Backport from mainline
2012-04-12 Michael Meissner <meissner@linux.vnet.ibm.com>
PR target/52775
* config/rs6000/rs6000.h (TARGET_FCFID): Add TARGET_PPC_GPOPT to
the list of options to enable the FCFID instruction.
(TARGET_EXTRA_BUILTINS): Adjust comment.
2012-04-12 Richard Guenther <rguenther@suse.de>
PR tree-optimization/52943
@ -35,7 +45,7 @@
generate REG_CFA_* notes for the stack pointer.
(tilepro_expand_epilogue): Restore stack pointer by adjusting it
by EH_RETURN_STACKADJ_RTX.
2012-04-06 Matt Turner <mattst88@gmail.com>
* doc/install.texi: Correct typo "-mno-lsc" -> "-mno-llsc".

11
gcc/config/rs6000/rs6000.h
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@ -467,10 +467,11 @@ extern int rs6000_vector_align[];
/* ISA 2.01 allowed FCFID to be done in 32-bit, previously it was 64-bit only.
Enable 32-bit fcfid's on any of the switches for newer ISA machines or
XILINX. */
#define TARGET_FCFID (TARGET_POWERPC64 \
|| TARGET_POPCNTB /* ISA 2.02 */ \
|| TARGET_CMPB /* ISA 2.05 */ \
|| TARGET_POPCNTD /* ISA 2.06 */ \
#define TARGET_FCFID (TARGET_POWERPC64 \
|| TARGET_PPC_GPOPT /* 970/power4 */ \
|| TARGET_POPCNTB /* ISA 2.02 */ \
|| TARGET_CMPB /* ISA 2.05 */ \
|| TARGET_POPCNTD /* ISA 2.06 */ \
|| TARGET_XILINX_FPU)
#define TARGET_FCTIDZ TARGET_FCFID
@ -492,7 +493,7 @@ extern int rs6000_vector_align[];
#define TARGET_EXTRA_BUILTINS (!TARGET_SPE && !TARGET_PAIRED_FLOAT \
&& ((TARGET_POWERPC64 \
|| TARGET_PPC_GPOPT /* 970 */ \
|| TARGET_PPC_GPOPT /* 970/power4 */ \
|| TARGET_POPCNTB /* ISA 2.02 */ \
|| TARGET_CMPB /* ISA 2.05 */ \
|| TARGET_POPCNTD /* ISA 2.06 */ \

8
gcc/testsuite/ChangeLog
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@ -1,3 +1,11 @@
2012-04-12 Michael Meissner <meissner@linux.vnet.ibm.com>
Backport from mainline
2012-04-12 Michael Meissner <meissner@linux.vnet.ibm.com>
PR target/52775
* gcc.target/powerpc/pr52775.c: New file.
2012-04-12 Richard Guenther <rguenther@suse.de>
PR tree-optimization/52943

16
gcc/testsuite/gcc.target/powerpc/pr52775.c Normal file
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@ -0,0 +1,16 @@
/* { dg-do compile { target { powerpc*-*-* && ilp32 } } } */
/* { dg-skip-if "" { powerpc*-*-darwin* } { "*" } { "" } } */
/* { dg-options "-O1 -mcpu=power4" } */
/* { dg-final { scan-assembler-times "fcfid" 2 } } */
double
int_to_double (int *p)
{
return (double)*p;
}
double
long_long_to_double (long long *p)
{
return (double)*p;
}