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Set callee_pass_avx256_p before emitting call instruction 

gcc/

	PR target/56560
	* config/i386/i386.c (init_cumulative_args): Also set
	cum->callee_return_avx256_p.
	(ix86_function_arg): Set cum->callee_pass_avx256_p.  Set
	cfun->machine->callee_pass_avx256_p only when MODE == VOIDmode.

	* config/i386/i386.h (ix86_args): Add callee_pass_avx256_p and
	callee_return_avx256_p.

gcc/

	PR target/56560
	* gcc.target/i386/pr56560.c: New file.

From-SVN: r196976
This commit is contained in:
H.J. Lu 2013-03-22 16:36:22 +00:00 committed by H.J. Lu
parent fa4f26d34c
commit 29c2674945
5 changed files with 53 additions and 2 deletions
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11
gcc/ChangeLog
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@ -1,3 +1,14 @@
2013-03-22 H.J. Lu <hongjiu.lu@intel.com>
PR target/56560
* config/i386/i386.c (init_cumulative_args): Also set
cum->callee_return_avx256_p.
(ix86_function_arg): Set cum->callee_pass_avx256_p. Set
cfun->machine->callee_pass_avx256_p only when MODE == VOIDmode.
* config/i386/i386.h (ix86_args): Add callee_pass_avx256_p and
callee_return_avx256_p.
2013-03-20 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
Backport from mainline:

16
gcc/config/i386/i386.c
View File

@ -5592,7 +5592,10 @@ init_cumulative_args (CUMULATIVE_ARGS *cum, /* Argument info to initialize */
{
/* The return value of this function uses 256bit AVX modes. */
if (caller)
cfun->machine->callee_return_avx256_p = true;
{
cfun->machine->callee_return_avx256_p = true;
cum->callee_return_avx256_p = true;
}
else
cfun->machine->caller_return_avx256_p = true;
}
@ -6863,11 +6866,20 @@ ix86_function_arg (cumulative_args_t cum_v, enum machine_mode omode,
{
/* This argument uses 256bit AVX modes. */
if (cum->caller)
cfun->machine->callee_pass_avx256_p = true;
cum->callee_pass_avx256_p = true;
else
cfun->machine->caller_pass_avx256_p = true;
}
if (cum->caller && mode == VOIDmode)
{
/* This function is called with MODE == VOIDmode immediately
before the call instruction is emitted. We copy callee 256bit
AVX info from the current CUM here. */
cfun->machine->callee_return_avx256_p = cum->callee_return_avx256_p;
cfun->machine->callee_pass_avx256_p = cum->callee_pass_avx256_p;
}
return arg;
}

4
gcc/config/i386/i386.h
View File

@ -1502,6 +1502,10 @@ typedef struct ix86_args {
in SSE registers. Otherwise 0. */
enum calling_abi call_abi; /* Set to SYSV_ABI for sysv abi. Otherwise
MS_ABI for ms abi. */
/* Nonzero if it passes 256bit AVX modes. */
BOOL_BITFIELD callee_pass_avx256_p : 1;
/* Nonzero if it returns 256bit AVX modes. */
BOOL_BITFIELD callee_return_avx256_p : 1;
} CUMULATIVE_ARGS;
/* Initialize a variable CUM of type CUMULATIVE_ARGS

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2013-03-22 H.J. Lu <hongjiu.lu@intel.com>
PR target/56560
* gcc.target/i386/pr56560.c: New file.
2013-03-15 Tobias Burnus <burnus@net-b.de>
PR fortran/56615

19
gcc/testsuite/gcc.target/i386/pr56560.c Normal file
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@ -0,0 +1,19 @@
/* { dg-do compile } */
/* { dg-options "-O2 -mavx -mvzeroupper -dp" } */
extern void abort (void);
typedef double vec_t __attribute__((vector_size(32)));
struct S { int i1; int i2; int i3; };
extern int bar (vec_t, int, int, int, int, int, struct S);
void foo (vec_t v, struct S s)
{
int i = bar (v, 1, 2, 3, 4, 5, s);
if (i == 0)
abort ();
}
/* { dg-final { scan-assembler-not "avx_vzeroupper" } } */