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re PR rtl-optimization/78547 (ICE: in loc_cmp, at var-tracking.c:3417 with -Os -g -mstringop-strategy=libcall -freorder-blocks-algorithm=simple)

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PR rtl-optimization/78547
	* emit-rtl.c (unshare_all_rtl): Make sure DECL_RTL and
	DECL_INCOMING_RTL is not shared.
	* config/i386/i386.c (convert_scalars_to_vectors): If any
	insns have been converted, adjust all parameter's DEC_RTL and
	DECL_INCOMING_RTL back from V1TImode to TImode if the parameters have
	TImode.

	* gcc.dg/pr78547.c: New test.

From-SVN: r243165
This commit is contained in:
Jakub Jelinek 2016-12-02 09:44:42 +01:00 committed by Jakub Jelinek
parent a717444986
commit 60ebe8ce1d
5 changed files with 59 additions and 0 deletions
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8
gcc/ChangeLog
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@ -1,5 +1,13 @@
2016-12-02 Jakub Jelinek <jakub@redhat.com>
PR rtl-optimization/78547
* emit-rtl.c (unshare_all_rtl): Make sure DECL_RTL and
DECL_INCOMING_RTL is not shared.
* config/i386/i386.c (convert_scalars_to_vectors): If any
insns have been converted, adjust all parameter's DEC_RTL and
DECL_INCOMING_RTL back from V1TImode to TImode if the parameters have
TImode.
PR rtl-optimization/78575
* config/i386/i386.c (timode_scalar_chain::fix_debug_reg_uses): Use
DF infrastructure to wrap all V1TImode reg uses into TImode subreg

22
gcc/config/i386/i386.c
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@ -4075,6 +4075,28 @@ convert_scalars_to_vector ()
crtl->stack_alignment_needed = 128;
if (crtl->stack_alignment_estimated < 128)
crtl->stack_alignment_estimated = 128;
/* Fix up DECL_RTL/DECL_INCOMING_RTL of arguments. */
if (TARGET_64BIT)
for (tree parm = DECL_ARGUMENTS (current_function_decl);
parm; parm = DECL_CHAIN (parm))
{
if (TYPE_MODE (TREE_TYPE (parm)) != TImode)
continue;
if (DECL_RTL_SET_P (parm)
&& GET_MODE (DECL_RTL (parm)) == V1TImode)
{
rtx r = DECL_RTL (parm);
if (REG_P (r))
SET_DECL_RTL (parm, gen_rtx_SUBREG (TImode, r, 0));
}
if (DECL_INCOMING_RTL (parm)
&& GET_MODE (DECL_INCOMING_RTL (parm)) == V1TImode)
{
rtx r = DECL_INCOMING_RTL (parm);
if (REG_P (r))
DECL_INCOMING_RTL (parm) = gen_rtx_SUBREG (TImode, r, 0);
}
}
}
return 0;

8
gcc/emit-rtl.c
View File

@ -2668,6 +2668,14 @@ unsigned int
unshare_all_rtl (void)
{
unshare_all_rtl_1 (get_insns ());
for (tree decl = DECL_ARGUMENTS (cfun->decl); decl; decl = DECL_CHAIN (decl))
{
if (DECL_RTL_SET_P (decl))
SET_DECL_RTL (decl, copy_rtx_if_shared (DECL_RTL (decl)));
DECL_INCOMING_RTL (decl) = copy_rtx_if_shared (DECL_INCOMING_RTL (decl));
}
return 0;
}

3
gcc/testsuite/ChangeLog
View File

@ -1,5 +1,8 @@
2016-12-02 Jakub Jelinek <jakub@redhat.com>
PR rtl-optimization/78547
* gcc.dg/pr78547.c: New test.
PR rtl-optimization/78575
* gcc.dg/pr78575.c: New test.

18
gcc/testsuite/gcc.dg/pr78547.c Normal file
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@ -0,0 +1,18 @@
/* PR rtl-optimization/78547 */
/* { dg-do compile { target int128 } } */
/* { dg-options "-Os -g -freorder-blocks-algorithm=simple -Wno-psabi" } */
/* { dg-additional-options "-mstringop-strategy=libcall" { target i?86-*-* x86_64-*-* } } */
typedef unsigned __int128 u128;
typedef unsigned __int128 V __attribute__ ((vector_size (64)));
V
foo (u128 a, u128 b, u128 c, V d)
{
V e = (V) {a};
V f = e & 1;
e = 0 != e;
c = c;
f = f << ((V) {c} & 7);
return f + e;
}