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re PR target/71698 (ICE related to decimal float when compiling with -mcpu=power9)

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gcc/
	PR target/71698
	* config/rs6000/rs6000.c (rs6000_secondary_reload_simple_move): Disallow
	TDmode values.

gcc/testsuite/
	PR target/71698
	* gcc.target/powerpc/pr71698.c: New test.

From-SVN: r237911
This commit is contained in:
Peter Bergner 2016-07-01 08:51:35 -05:00 • committed by Peter Bergner
parent 22e1cb39f3
commit 2c1e49643b
4 changed files with 27 additions and 2 deletions
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6
gcc/ChangeLog
View file

@ -1,3 +1,9 @@
2016-07-01 Peter Bergner <bergner@vnet.ibm.com>
PR target/71698
* config/rs6000/rs6000.c (rs6000_secondary_reload_simple_move): Disallow
TDmode values.
2016-07-01 Alan Modra <amodra@gmail.com>
PR rtl-optimization/71709

5
gcc/config/rs6000/rs6000.c
View file

@ -19194,7 +19194,8 @@ rs6000_secondary_reload_simple_move (enum rs6000_reg_type to_type,
simple move insns are issued. At present, 32-bit integers are not allowed
in FPR/VSX registers. Single precision binary floating is not a simple
move because we need to convert to the single precision memory layout.
The 4-byte SDmode can be moved. */
The 4-byte SDmode can be moved. TDmode values are disallowed since they
need special direct move handling, which we do not support yet. */
size = GET_MODE_SIZE (mode);
if (TARGET_DIRECT_MOVE
&& ((mode == SDmode) || (TARGET_POWERPC64 && size == 8))
@ -19202,7 +19203,7 @@ rs6000_secondary_reload_simple_move (enum rs6000_reg_type to_type,
|| (to_type == VSX_REG_TYPE && from_type == GPR_REG_TYPE)))
return true;
else if (TARGET_DIRECT_MOVE_128 && size == 16
else if (TARGET_DIRECT_MOVE_128 && size == 16 && mode != TDmode
&& ((to_type == VSX_REG_TYPE && from_type == GPR_REG_TYPE)
|| (to_type == GPR_REG_TYPE && from_type == VSX_REG_TYPE)))
return true;

5
gcc/testsuite/ChangeLog
View file

@ -1,3 +1,8 @@
2016-07-01 Peter Bergner <bergner@vnet.ibm.com>
PR target/71698
* gcc.target/powerpc/pr71698.c: New test.
2016-07-01 Georg-Johann Lay <avr@gjlay.de>
PR target/71151

13
gcc/testsuite/gcc.target/powerpc/pr71698.c Normal file
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@ -0,0 +1,13 @@
/* Test for a reload ICE arising from trying to direct move a TDmode value. */
/* { dg-do compile } */
/* { dg-require-effective-target powerpc_p9vector_ok } */
/* { dg-require-effective-target dfp } */
/* { dg-skip-if "do not override -mcpu" { powerpc*-*-* } { "-mcpu=*" } { "-mcpu=power9" } } */
/* { dg-options "-O1 -mcpu=power9 -mno-lra" } */
extern void testvad128 (int n, ...);
void
testitd128 (_Decimal128 g01d128)
{
testvad128 (1, g01d128);
}