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re PR target/56995 (sh4 -mfmovd: ICE in find_costs_and_classes) 

2013-04-18  Christian Bruel  <christian.bruel@st.com>

       PR target/56995
       * config/sh/sh.h (enum reg_class): Remove DF_HI_REGS.
       (REG_CLASS_NAMES): Idem.
       (REG_CLASS_CONTENTS): Idem.
       (REGCLASS_HAS_FP_REG): Idem.
       * config/sh/sh.c (sh_cannot_change_mode_class): Idem.
       (sh_conditional_register_usage): Idem.

From-SVN: r198123
This commit is contained in:
Christian Bruel 2013-04-22 09:16:21 +02:00 committed by Christian Bruel
parent 3e8a33f96b
commit 1818d01c42
5 changed files with 26 additions and 10 deletions
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10
gcc/ChangeLog
View File

@ -1,3 +1,13 @@
2013-04-18 Christian Bruel <christian.bruel@st.com>
PR target/56995
* config/sh/sh.h (enum reg_class): Remove DF_HI_REGS.
(REG_CLASS_NAMES): Idem.
(REG_CLASS_CONTENTS): Idem.
(REGCLASS_HAS_FP_REG): Idem.
* config/sh/sh.c (sh_cannot_change_mode_class): Idem.
(sh_conditional_register_usage): Idem.
2013-04-21 Jeff Law <law@redhat.com>
* tree-ssa-forwprop.c (simplify_conversion_from_bitmask): New function.

6
gcc/config/sh/sh.c
View File

@ -12163,7 +12163,7 @@ sh_cannot_change_mode_class (enum machine_mode from, enum machine_mode to,
else
{
if (GET_MODE_SIZE (from) < 8)
return reg_classes_intersect_p (DF_HI_REGS, rclass);
return reg_classes_intersect_p (DF_REGS, rclass);
}
}
return false;
@ -13210,9 +13210,7 @@ sh_conditional_register_usage (void)
call_really_used_regs[MACH_REG] = 0;
call_really_used_regs[MACL_REG] = 0;
}
for (regno = FIRST_FP_REG + (TARGET_LITTLE_ENDIAN != 0);
regno <= LAST_FP_REG; regno += 2)
SET_HARD_REG_BIT (reg_class_contents[DF_HI_REGS], regno);
if (TARGET_SHMEDIA)
{
for (regno = FIRST_TARGET_REG; regno <= LAST_TARGET_REG; regno ++)

6
gcc/config/sh/sh.h
View File

@ -984,7 +984,6 @@ enum reg_class
GENERAL_REGS,
FP0_REGS,
FP_REGS,
DF_HI_REGS,
DF_REGS,
FPSCR_REGS,
GENERAL_FP_REGS,
@ -1010,7 +1009,6 @@ enum reg_class
"GENERAL_REGS", \
"FP0_REGS", \
"FP_REGS", \
"DF_HI_REGS", \
"DF_REGS", \
"FPSCR_REGS", \
"GENERAL_FP_REGS", \
@ -1046,8 +1044,6 @@ enum reg_class
{ 0x00000000, 0x00000000, 0x00000001, 0x00000000, 0x00000000 }, \
/* FP_REGS: */ \
{ 0x00000000, 0x00000000, 0xffffffff, 0xffffffff, 0x00000000 }, \
/* DF_HI_REGS: Initialized in TARGET_CONDITIONAL_REGISTER_USAGE. */ \
{ 0x00000000, 0x00000000, 0xffffffff, 0xffffffff, 0x0000ff00 }, \
/* DF_REGS: */ \
{ 0x00000000, 0x00000000, 0xffffffff, 0xffffffff, 0x0000ff00 }, \
/* FPSCR_REGS: */ \
@ -1922,7 +1918,7 @@ struct sh_args {
#define REGCLASS_HAS_FP_REG(CLASS) \
((CLASS) == FP0_REGS || (CLASS) == FP_REGS \
|| (CLASS) == DF_REGS || (CLASS) == DF_HI_REGS)
|| (CLASS) == DF_REGS)
/* ??? Perhaps make MEMORY_MOVE_COST depend on compiler option? This
would be so that people with slow memory systems could generate

5
gcc/testsuite/ChangeLog
View File

@ -1,3 +1,8 @@
2013-04-18 Christian Bruel <christian.bruel@st.com>
PR target/56995
* gcc.target/sh/mfmovd.c: Add new function and check hard_float.
2013-04-21 Jeff Law <law@redhat.com>
* gcc.dg/tree-ssa/forwprop-26.c: New test.

9
gcc/testsuite/gcc.target/sh/mfmovd.c
View File

@ -1,8 +1,9 @@
/* Verify that we generate fmov.d instructions to move doubles when -mfmovd
option is enabled. */
/* { dg-do compile { target "sh*-*-*" } } */
/* { dg-require-effective-target hard_float } */
/* { dg-options "-mfmovd" } */
/* { dg-skip-if "" { "sh*-*-*" } { "*" } { "-m2a" "-m2a-single" "-m4" "-m4-single" "-m4-100" "-m4-100-single" "-m4-200" "-m4-200-single" "-m4-300" "-m4-300-single" "-m4a" "-m4a-single" } } */
/* { dg-skip-if "" { *-*-* } { "*-single-only" } { "" } } */
/* { dg-final { scan-assembler "fmov.d" } } */
extern double g;
@ -13,3 +14,9 @@ f (double d)
g = d;
}
extern float h;
void f2 ()
{
h = g;
}