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* [gcc(refs/users/meissner/heads/work119)] Allow vec_extract support functions to be called before reload.
@ 2023-04-21 18:12 Michael Meissner
0 siblings, 0 replies; 4+ messages in thread
From: Michael Meissner @ 2023-04-21 18:12 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:ae522b41d78ccd6977fd280b87ffbdb2e5b5df9a
commit ae522b41d78ccd6977fd280b87ffbdb2e5b5df9a
Author: Michael Meissner <meissner@linux.ibm.com>
Date: Fri Apr 21 14:11:59 2023 -0400
Allow vec_extract support functions to be called before reload.
2023-04-21 Michael Meissner <meissner@linux.ibm.com>
gcc/
* config/rs6000/rs6000.cc (get_vector_offset): Allow being called before
register allocation.
(adjust_vec_address_pcrel): Likewise.
(rs6000_adjust_vec_address): Likewise.
Diff:
---
gcc/config/rs6000/rs6000.cc | 56 +++++++++++++++++++++++++++++++--------------
1 file changed, 39 insertions(+), 17 deletions(-)
diff --git a/gcc/config/rs6000/rs6000.cc b/gcc/config/rs6000/rs6000.cc
index 3be5860dd9b..65295dbaf81 100644
--- a/gcc/config/rs6000/rs6000.cc
+++ b/gcc/config/rs6000/rs6000.cc
@@ -7686,9 +7686,13 @@ get_vector_offset (rtx mem, rtx element, rtx base_tmp, unsigned scalar_size)
if (CONST_INT_P (element))
return GEN_INT (INTVAL (element) * scalar_size);
- /* All insns should use the 'Q' constraint (address is a single register) if
- the element number is not a constant. */
- gcc_assert (satisfies_constraint_Q (mem));
+ if (GET_CODE (base_tmp) == SCRATCH)
+ base_tmp = gen_reg_rtx (Pmode);
+
+ /* After register allocation, all insns should use the 'Q' constraint
+ (address is a single register) if the element number is not a
+ constant. */
+ gcc_assert (can_create_pseudo_p () || satisfies_constraint_Q (mem));
/* Mask the element to make sure the element number is between 0 and the
maximum number of elements - 1 so that we don't generate an address
@@ -7704,6 +7708,9 @@ get_vector_offset (rtx mem, rtx element, rtx base_tmp, unsigned scalar_size)
if (shift > 0)
{
rtx shift_op = gen_rtx_ASHIFT (Pmode, base_tmp, GEN_INT (shift));
+ if (can_create_pseudo_p ())
+ base_tmp = gen_reg_rtx (Pmode);
+
emit_insn (gen_rtx_SET (base_tmp, shift_op));
}
@@ -7747,6 +7754,9 @@ adjust_vec_address_pcrel (rtx addr, rtx element_offset, rtx base_tmp)
else
{
+ if (GET_CODE (base_tmp) == SCRATCH)
+ base_tmp = gen_reg_rtx (Pmode);
+
emit_move_insn (base_tmp, addr);
new_addr = gen_rtx_PLUS (Pmode, base_tmp, element_offset);
}
@@ -7769,9 +7779,8 @@ adjust_vec_address_pcrel (rtx addr, rtx element_offset, rtx base_tmp)
temporary (BASE_TMP) to fixup the address. Return the new memory address
that is valid for reads or writes to a given register (SCALAR_REG).
- This function is expected to be called after reload is completed when we are
- splitting insns. The temporary BASE_TMP might be set multiple times with
- this code. */
+ The temporary BASE_TMP might be set multiple times with this code if this is
+ called after register allocation. */
rtx
rs6000_adjust_vec_address (rtx scalar_reg,
@@ -7784,8 +7793,11 @@ rs6000_adjust_vec_address (rtx scalar_reg,
rtx addr = XEXP (mem, 0);
rtx new_addr;
- gcc_assert (!reg_mentioned_p (base_tmp, addr));
- gcc_assert (!reg_mentioned_p (base_tmp, element));
+ if (GET_CODE (base_tmp) != SCRATCH)
+ {
+ gcc_assert (!reg_mentioned_p (base_tmp, addr));
+ gcc_assert (!reg_mentioned_p (base_tmp, element));
+ }
/* Vector addresses should not have PRE_INC, PRE_DEC, or PRE_MODIFY. */
gcc_assert (GET_RTX_CLASS (GET_CODE (addr)) != RTX_AUTOINC);
@@ -7841,6 +7853,9 @@ rs6000_adjust_vec_address (rtx scalar_reg,
offset, it has the benefit that if D-FORM instructions are
allowed, the offset is part of the memory access to the vector
element. */
+ if (GET_CODE (base_tmp) == SCRATCH)
+ base_tmp = gen_reg_rtx (Pmode);
+
emit_insn (gen_rtx_SET (base_tmp, gen_rtx_PLUS (Pmode, op0, op1)));
new_addr = gen_rtx_PLUS (Pmode, base_tmp, element_offset);
}
@@ -7848,26 +7863,33 @@ rs6000_adjust_vec_address (rtx scalar_reg,
else
{
+ if (GET_CODE (base_tmp) == SCRATCH)
+ base_tmp = gen_reg_rtx (Pmode);
+
emit_move_insn (base_tmp, addr);
new_addr = gen_rtx_PLUS (Pmode, base_tmp, element_offset);
}
- /* If the address isn't valid, move the address into the temporary base
- register. Some reasons it could not be valid include:
+ /* If register allocation has been done and the address isn't valid, move
+ the address into the temporary base register. Some reasons it could not
+ be valid include:
The address offset overflowed the 16 or 34 bit offset size;
We need to use a DS-FORM load, and the bottom 2 bits are non-zero;
We need to use a DQ-FORM load, and the bottom 4 bits are non-zero;
Only X_FORM loads can be done, and the address is D_FORM. */
- enum insn_form iform
- = address_to_insn_form (new_addr, scalar_mode,
- reg_to_non_prefixed (scalar_reg, scalar_mode));
-
- if (iform == INSN_FORM_BAD)
+ if (!can_create_pseudo_p ())
{
- emit_move_insn (base_tmp, new_addr);
- new_addr = base_tmp;
+ enum insn_form iform
+ = address_to_insn_form (new_addr, scalar_mode,
+ reg_to_non_prefixed (scalar_reg, scalar_mode));
+
+ if (iform == INSN_FORM_BAD)
+ {
+ emit_move_insn (base_tmp, new_addr);
+ new_addr = base_tmp;
+ }
}
return change_address (mem, scalar_mode, new_addr);
^ permalink raw reply [flat|nested] 4+ messages in thread
* [gcc(refs/users/meissner/heads/work119)] Allow vec_extract support functions to be called before reload.
@ 2023-04-19 19:29 Michael Meissner
0 siblings, 0 replies; 4+ messages in thread
From: Michael Meissner @ 2023-04-19 19:29 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:113f76a81ff56d0ed3ec318dc088b31ac34c8934
commit 113f76a81ff56d0ed3ec318dc088b31ac34c8934
Author: Michael Meissner <meissner@linux.ibm.com>
Date: Wed Apr 19 15:28:51 2023 -0400
Allow vec_extract support functions to be called before reload.
2023-04-19 Michael Meissner <meissner@linux.ibm.com>
gcc/
* config/rs6000/rs6000.cc (get_vector_offset): Allow being called before
register allocation.
(adjust_vec_address_pcrel): Likewise.
(rs6000_adjust_vec_address): Likewise.
Diff:
---
gcc/config/rs6000/rs6000.cc | 56 +++++++++++++++++++++++++++++++--------------
1 file changed, 39 insertions(+), 17 deletions(-)
diff --git a/gcc/config/rs6000/rs6000.cc b/gcc/config/rs6000/rs6000.cc
index 3be5860dd9b..65295dbaf81 100644
--- a/gcc/config/rs6000/rs6000.cc
+++ b/gcc/config/rs6000/rs6000.cc
@@ -7686,9 +7686,13 @@ get_vector_offset (rtx mem, rtx element, rtx base_tmp, unsigned scalar_size)
if (CONST_INT_P (element))
return GEN_INT (INTVAL (element) * scalar_size);
- /* All insns should use the 'Q' constraint (address is a single register) if
- the element number is not a constant. */
- gcc_assert (satisfies_constraint_Q (mem));
+ if (GET_CODE (base_tmp) == SCRATCH)
+ base_tmp = gen_reg_rtx (Pmode);
+
+ /* After register allocation, all insns should use the 'Q' constraint
+ (address is a single register) if the element number is not a
+ constant. */
+ gcc_assert (can_create_pseudo_p () || satisfies_constraint_Q (mem));
/* Mask the element to make sure the element number is between 0 and the
maximum number of elements - 1 so that we don't generate an address
@@ -7704,6 +7708,9 @@ get_vector_offset (rtx mem, rtx element, rtx base_tmp, unsigned scalar_size)
if (shift > 0)
{
rtx shift_op = gen_rtx_ASHIFT (Pmode, base_tmp, GEN_INT (shift));
+ if (can_create_pseudo_p ())
+ base_tmp = gen_reg_rtx (Pmode);
+
emit_insn (gen_rtx_SET (base_tmp, shift_op));
}
@@ -7747,6 +7754,9 @@ adjust_vec_address_pcrel (rtx addr, rtx element_offset, rtx base_tmp)
else
{
+ if (GET_CODE (base_tmp) == SCRATCH)
+ base_tmp = gen_reg_rtx (Pmode);
+
emit_move_insn (base_tmp, addr);
new_addr = gen_rtx_PLUS (Pmode, base_tmp, element_offset);
}
@@ -7769,9 +7779,8 @@ adjust_vec_address_pcrel (rtx addr, rtx element_offset, rtx base_tmp)
temporary (BASE_TMP) to fixup the address. Return the new memory address
that is valid for reads or writes to a given register (SCALAR_REG).
- This function is expected to be called after reload is completed when we are
- splitting insns. The temporary BASE_TMP might be set multiple times with
- this code. */
+ The temporary BASE_TMP might be set multiple times with this code if this is
+ called after register allocation. */
rtx
rs6000_adjust_vec_address (rtx scalar_reg,
@@ -7784,8 +7793,11 @@ rs6000_adjust_vec_address (rtx scalar_reg,
rtx addr = XEXP (mem, 0);
rtx new_addr;
- gcc_assert (!reg_mentioned_p (base_tmp, addr));
- gcc_assert (!reg_mentioned_p (base_tmp, element));
+ if (GET_CODE (base_tmp) != SCRATCH)
+ {
+ gcc_assert (!reg_mentioned_p (base_tmp, addr));
+ gcc_assert (!reg_mentioned_p (base_tmp, element));
+ }
/* Vector addresses should not have PRE_INC, PRE_DEC, or PRE_MODIFY. */
gcc_assert (GET_RTX_CLASS (GET_CODE (addr)) != RTX_AUTOINC);
@@ -7841,6 +7853,9 @@ rs6000_adjust_vec_address (rtx scalar_reg,
offset, it has the benefit that if D-FORM instructions are
allowed, the offset is part of the memory access to the vector
element. */
+ if (GET_CODE (base_tmp) == SCRATCH)
+ base_tmp = gen_reg_rtx (Pmode);
+
emit_insn (gen_rtx_SET (base_tmp, gen_rtx_PLUS (Pmode, op0, op1)));
new_addr = gen_rtx_PLUS (Pmode, base_tmp, element_offset);
}
@@ -7848,26 +7863,33 @@ rs6000_adjust_vec_address (rtx scalar_reg,
else
{
+ if (GET_CODE (base_tmp) == SCRATCH)
+ base_tmp = gen_reg_rtx (Pmode);
+
emit_move_insn (base_tmp, addr);
new_addr = gen_rtx_PLUS (Pmode, base_tmp, element_offset);
}
- /* If the address isn't valid, move the address into the temporary base
- register. Some reasons it could not be valid include:
+ /* If register allocation has been done and the address isn't valid, move
+ the address into the temporary base register. Some reasons it could not
+ be valid include:
The address offset overflowed the 16 or 34 bit offset size;
We need to use a DS-FORM load, and the bottom 2 bits are non-zero;
We need to use a DQ-FORM load, and the bottom 4 bits are non-zero;
Only X_FORM loads can be done, and the address is D_FORM. */
- enum insn_form iform
- = address_to_insn_form (new_addr, scalar_mode,
- reg_to_non_prefixed (scalar_reg, scalar_mode));
-
- if (iform == INSN_FORM_BAD)
+ if (!can_create_pseudo_p ())
{
- emit_move_insn (base_tmp, new_addr);
- new_addr = base_tmp;
+ enum insn_form iform
+ = address_to_insn_form (new_addr, scalar_mode,
+ reg_to_non_prefixed (scalar_reg, scalar_mode));
+
+ if (iform == INSN_FORM_BAD)
+ {
+ emit_move_insn (base_tmp, new_addr);
+ new_addr = base_tmp;
+ }
}
return change_address (mem, scalar_mode, new_addr);
^ permalink raw reply [flat|nested] 4+ messages in thread
* [gcc(refs/users/meissner/heads/work119)] Allow vec_extract support functions to be called before reload.
@ 2023-04-19 19:22 Michael Meissner
0 siblings, 0 replies; 4+ messages in thread
From: Michael Meissner @ 2023-04-19 19:22 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:0d104dff7078a08820da5f8de190cc95dd0db88b
commit 0d104dff7078a08820da5f8de190cc95dd0db88b
Author: Michael Meissner <meissner@linux.ibm.com>
Date: Wed Apr 19 15:21:53 2023 -0400
Allow vec_extract support functions to be called before reload.
2023-04-19 Michael Meissner <meissner@linux.ibm.com>
gcc/
* config/rs6000/rs6000.cc (get_vector_offset): Allow being called before
register allocation.
(adjust_vec_address_pcrel): Likewise.
(rs6000_adjust_vec_address): Likewise.
Diff:
---
gcc/config/rs6000/rs6000.cc | 56 +++++++++++++++++++++++++++++++--------------
1 file changed, 39 insertions(+), 17 deletions(-)
diff --git a/gcc/config/rs6000/rs6000.cc b/gcc/config/rs6000/rs6000.cc
index 3be5860dd9b..65295dbaf81 100644
--- a/gcc/config/rs6000/rs6000.cc
+++ b/gcc/config/rs6000/rs6000.cc
@@ -7686,9 +7686,13 @@ get_vector_offset (rtx mem, rtx element, rtx base_tmp, unsigned scalar_size)
if (CONST_INT_P (element))
return GEN_INT (INTVAL (element) * scalar_size);
- /* All insns should use the 'Q' constraint (address is a single register) if
- the element number is not a constant. */
- gcc_assert (satisfies_constraint_Q (mem));
+ if (GET_CODE (base_tmp) == SCRATCH)
+ base_tmp = gen_reg_rtx (Pmode);
+
+ /* After register allocation, all insns should use the 'Q' constraint
+ (address is a single register) if the element number is not a
+ constant. */
+ gcc_assert (can_create_pseudo_p () || satisfies_constraint_Q (mem));
/* Mask the element to make sure the element number is between 0 and the
maximum number of elements - 1 so that we don't generate an address
@@ -7704,6 +7708,9 @@ get_vector_offset (rtx mem, rtx element, rtx base_tmp, unsigned scalar_size)
if (shift > 0)
{
rtx shift_op = gen_rtx_ASHIFT (Pmode, base_tmp, GEN_INT (shift));
+ if (can_create_pseudo_p ())
+ base_tmp = gen_reg_rtx (Pmode);
+
emit_insn (gen_rtx_SET (base_tmp, shift_op));
}
@@ -7747,6 +7754,9 @@ adjust_vec_address_pcrel (rtx addr, rtx element_offset, rtx base_tmp)
else
{
+ if (GET_CODE (base_tmp) == SCRATCH)
+ base_tmp = gen_reg_rtx (Pmode);
+
emit_move_insn (base_tmp, addr);
new_addr = gen_rtx_PLUS (Pmode, base_tmp, element_offset);
}
@@ -7769,9 +7779,8 @@ adjust_vec_address_pcrel (rtx addr, rtx element_offset, rtx base_tmp)
temporary (BASE_TMP) to fixup the address. Return the new memory address
that is valid for reads or writes to a given register (SCALAR_REG).
- This function is expected to be called after reload is completed when we are
- splitting insns. The temporary BASE_TMP might be set multiple times with
- this code. */
+ The temporary BASE_TMP might be set multiple times with this code if this is
+ called after register allocation. */
rtx
rs6000_adjust_vec_address (rtx scalar_reg,
@@ -7784,8 +7793,11 @@ rs6000_adjust_vec_address (rtx scalar_reg,
rtx addr = XEXP (mem, 0);
rtx new_addr;
- gcc_assert (!reg_mentioned_p (base_tmp, addr));
- gcc_assert (!reg_mentioned_p (base_tmp, element));
+ if (GET_CODE (base_tmp) != SCRATCH)
+ {
+ gcc_assert (!reg_mentioned_p (base_tmp, addr));
+ gcc_assert (!reg_mentioned_p (base_tmp, element));
+ }
/* Vector addresses should not have PRE_INC, PRE_DEC, or PRE_MODIFY. */
gcc_assert (GET_RTX_CLASS (GET_CODE (addr)) != RTX_AUTOINC);
@@ -7841,6 +7853,9 @@ rs6000_adjust_vec_address (rtx scalar_reg,
offset, it has the benefit that if D-FORM instructions are
allowed, the offset is part of the memory access to the vector
element. */
+ if (GET_CODE (base_tmp) == SCRATCH)
+ base_tmp = gen_reg_rtx (Pmode);
+
emit_insn (gen_rtx_SET (base_tmp, gen_rtx_PLUS (Pmode, op0, op1)));
new_addr = gen_rtx_PLUS (Pmode, base_tmp, element_offset);
}
@@ -7848,26 +7863,33 @@ rs6000_adjust_vec_address (rtx scalar_reg,
else
{
+ if (GET_CODE (base_tmp) == SCRATCH)
+ base_tmp = gen_reg_rtx (Pmode);
+
emit_move_insn (base_tmp, addr);
new_addr = gen_rtx_PLUS (Pmode, base_tmp, element_offset);
}
- /* If the address isn't valid, move the address into the temporary base
- register. Some reasons it could not be valid include:
+ /* If register allocation has been done and the address isn't valid, move
+ the address into the temporary base register. Some reasons it could not
+ be valid include:
The address offset overflowed the 16 or 34 bit offset size;
We need to use a DS-FORM load, and the bottom 2 bits are non-zero;
We need to use a DQ-FORM load, and the bottom 4 bits are non-zero;
Only X_FORM loads can be done, and the address is D_FORM. */
- enum insn_form iform
- = address_to_insn_form (new_addr, scalar_mode,
- reg_to_non_prefixed (scalar_reg, scalar_mode));
-
- if (iform == INSN_FORM_BAD)
+ if (!can_create_pseudo_p ())
{
- emit_move_insn (base_tmp, new_addr);
- new_addr = base_tmp;
+ enum insn_form iform
+ = address_to_insn_form (new_addr, scalar_mode,
+ reg_to_non_prefixed (scalar_reg, scalar_mode));
+
+ if (iform == INSN_FORM_BAD)
+ {
+ emit_move_insn (base_tmp, new_addr);
+ new_addr = base_tmp;
+ }
}
return change_address (mem, scalar_mode, new_addr);
^ permalink raw reply [flat|nested] 4+ messages in thread
* [gcc(refs/users/meissner/heads/work119)] Allow vec_extract support functions to be called before reload.
@ 2023-04-19 16:27 Michael Meissner
0 siblings, 0 replies; 4+ messages in thread
From: Michael Meissner @ 2023-04-19 16:27 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:423607e8b0d7b963e76ddb191892f3b55848fad5
commit 423607e8b0d7b963e76ddb191892f3b55848fad5
Author: Michael Meissner <meissner@linux.ibm.com>
Date: Wed Apr 19 12:26:02 2023 -0400
Allow vec_extract support functions to be called before reload.
2023-04-19 Michael Meissner <meissner@linux.ibm.com>
gcc/
* config/rs6000/rs6000.cc (get_vector_offset): Allow being called before
register allocation.
(adjust_vec_address_pcrel): Likewise.
(rs6000_adjust_vec_address): Likewise.
Diff:
---
gcc/config/rs6000/rs6000.cc | 56 +++++++++++++++++++++++++++++++--------------
1 file changed, 39 insertions(+), 17 deletions(-)
diff --git a/gcc/config/rs6000/rs6000.cc b/gcc/config/rs6000/rs6000.cc
index 3be5860dd9b..65295dbaf81 100644
--- a/gcc/config/rs6000/rs6000.cc
+++ b/gcc/config/rs6000/rs6000.cc
@@ -7686,9 +7686,13 @@ get_vector_offset (rtx mem, rtx element, rtx base_tmp, unsigned scalar_size)
if (CONST_INT_P (element))
return GEN_INT (INTVAL (element) * scalar_size);
- /* All insns should use the 'Q' constraint (address is a single register) if
- the element number is not a constant. */
- gcc_assert (satisfies_constraint_Q (mem));
+ if (GET_CODE (base_tmp) == SCRATCH)
+ base_tmp = gen_reg_rtx (Pmode);
+
+ /* After register allocation, all insns should use the 'Q' constraint
+ (address is a single register) if the element number is not a
+ constant. */
+ gcc_assert (can_create_pseudo_p () || satisfies_constraint_Q (mem));
/* Mask the element to make sure the element number is between 0 and the
maximum number of elements - 1 so that we don't generate an address
@@ -7704,6 +7708,9 @@ get_vector_offset (rtx mem, rtx element, rtx base_tmp, unsigned scalar_size)
if (shift > 0)
{
rtx shift_op = gen_rtx_ASHIFT (Pmode, base_tmp, GEN_INT (shift));
+ if (can_create_pseudo_p ())
+ base_tmp = gen_reg_rtx (Pmode);
+
emit_insn (gen_rtx_SET (base_tmp, shift_op));
}
@@ -7747,6 +7754,9 @@ adjust_vec_address_pcrel (rtx addr, rtx element_offset, rtx base_tmp)
else
{
+ if (GET_CODE (base_tmp) == SCRATCH)
+ base_tmp = gen_reg_rtx (Pmode);
+
emit_move_insn (base_tmp, addr);
new_addr = gen_rtx_PLUS (Pmode, base_tmp, element_offset);
}
@@ -7769,9 +7779,8 @@ adjust_vec_address_pcrel (rtx addr, rtx element_offset, rtx base_tmp)
temporary (BASE_TMP) to fixup the address. Return the new memory address
that is valid for reads or writes to a given register (SCALAR_REG).
- This function is expected to be called after reload is completed when we are
- splitting insns. The temporary BASE_TMP might be set multiple times with
- this code. */
+ The temporary BASE_TMP might be set multiple times with this code if this is
+ called after register allocation. */
rtx
rs6000_adjust_vec_address (rtx scalar_reg,
@@ -7784,8 +7793,11 @@ rs6000_adjust_vec_address (rtx scalar_reg,
rtx addr = XEXP (mem, 0);
rtx new_addr;
- gcc_assert (!reg_mentioned_p (base_tmp, addr));
- gcc_assert (!reg_mentioned_p (base_tmp, element));
+ if (GET_CODE (base_tmp) != SCRATCH)
+ {
+ gcc_assert (!reg_mentioned_p (base_tmp, addr));
+ gcc_assert (!reg_mentioned_p (base_tmp, element));
+ }
/* Vector addresses should not have PRE_INC, PRE_DEC, or PRE_MODIFY. */
gcc_assert (GET_RTX_CLASS (GET_CODE (addr)) != RTX_AUTOINC);
@@ -7841,6 +7853,9 @@ rs6000_adjust_vec_address (rtx scalar_reg,
offset, it has the benefit that if D-FORM instructions are
allowed, the offset is part of the memory access to the vector
element. */
+ if (GET_CODE (base_tmp) == SCRATCH)
+ base_tmp = gen_reg_rtx (Pmode);
+
emit_insn (gen_rtx_SET (base_tmp, gen_rtx_PLUS (Pmode, op0, op1)));
new_addr = gen_rtx_PLUS (Pmode, base_tmp, element_offset);
}
@@ -7848,26 +7863,33 @@ rs6000_adjust_vec_address (rtx scalar_reg,
else
{
+ if (GET_CODE (base_tmp) == SCRATCH)
+ base_tmp = gen_reg_rtx (Pmode);
+
emit_move_insn (base_tmp, addr);
new_addr = gen_rtx_PLUS (Pmode, base_tmp, element_offset);
}
- /* If the address isn't valid, move the address into the temporary base
- register. Some reasons it could not be valid include:
+ /* If register allocation has been done and the address isn't valid, move
+ the address into the temporary base register. Some reasons it could not
+ be valid include:
The address offset overflowed the 16 or 34 bit offset size;
We need to use a DS-FORM load, and the bottom 2 bits are non-zero;
We need to use a DQ-FORM load, and the bottom 4 bits are non-zero;
Only X_FORM loads can be done, and the address is D_FORM. */
- enum insn_form iform
- = address_to_insn_form (new_addr, scalar_mode,
- reg_to_non_prefixed (scalar_reg, scalar_mode));
-
- if (iform == INSN_FORM_BAD)
+ if (!can_create_pseudo_p ())
{
- emit_move_insn (base_tmp, new_addr);
- new_addr = base_tmp;
+ enum insn_form iform
+ = address_to_insn_form (new_addr, scalar_mode,
+ reg_to_non_prefixed (scalar_reg, scalar_mode));
+
+ if (iform == INSN_FORM_BAD)
+ {
+ emit_move_insn (base_tmp, new_addr);
+ new_addr = base_tmp;
+ }
}
return change_address (mem, scalar_mode, new_addr);
^ permalink raw reply [flat|nested] 4+ messages in thread
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2023-04-19 19:29 Michael Meissner
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