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backport: re PR target/83629 (ICE: in decompose_normal_address, at rtlanal.c:6329 with -O2 -fPIC -frename-registers --param=sched-autopref-queue-depth=nnn) 

Backport from mainline
	2018-01-10  Segher Boessenkool  <segher@kernel.crashing.org>

	PR target/83629
	* config/rs6000/rs6000.md (load_toc_v4_PIC_2, load_toc_v4_PIC_3b,
	load_toc_v4_PIC_3c): Wrap const term in CONST RTL.

gcc/testsuite/
	Backport from mainline
	2018-01-10  Segher Boessenkool  <segher@kernel.crashing.org>

	PR target/83629
	* gcc.target/powerpc/pr83629.c: New testcase.

	2018-01-12  Segher Boessenkool  <segher@kernel.crashing.org>

	PR target/83629
	* gcc.target/powerpc/pr83629.c: Require ilp32.

From-SVN: r256711
This commit is contained in:
Segher Boessenkool 2018-01-15 23:08:12 +01:00 committed by Segher Boessenkool
parent 1984fccf0b
commit 8cd9e9f172
4 changed files with 48 additions and 10 deletions
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9
gcc/ChangeLog
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@ -1,3 +1,12 @@
2018-01-15 Segher Boessenkool <segher@kernel.crashing.org>
Backport from mainline
2018-01-10 Segher Boessenkool <segher@kernel.crashing.org>
PR target/83629
* config/rs6000/rs6000.md (load_toc_v4_PIC_2, load_toc_v4_PIC_3b,
load_toc_v4_PIC_3c): Wrap const term in CONST RTL.
2018-01-15 H.J. Lu <hongjiu.lu@intel.com>
Backport from mainline

26
gcc/config/rs6000/rs6000.md
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@ -10662,27 +10662,33 @@
(define_insn "load_toc_v4_PIC_2"
[(set (match_operand:SI 0 "gpc_reg_operand" "=r")
(mem:SI (plus:SI (match_operand:SI 1 "gpc_reg_operand" "b")
(minus:SI (match_operand:SI 2 "immediate_operand" "s")
(match_operand:SI 3 "immediate_operand" "s")))))]
(mem:SI (plus:SI
(match_operand:SI 1 "gpc_reg_operand" "b")
(const
(minus:SI (match_operand:SI 2 "immediate_operand" "s")
(match_operand:SI 3 "immediate_operand" "s"))))))]
"TARGET_ELF && DEFAULT_ABI == ABI_V4 && flag_pic == 2"
"lwz %0,%2-%3(%1)"
[(set_attr "type" "load")])
(define_insn "load_toc_v4_PIC_3b"
[(set (match_operand:SI 0 "gpc_reg_operand" "=r")
(plus:SI (match_operand:SI 1 "gpc_reg_operand" "b")
(high:SI
(minus:SI (match_operand:SI 2 "symbol_ref_operand" "s")
(match_operand:SI 3 "symbol_ref_operand" "s")))))]
(plus:SI
(match_operand:SI 1 "gpc_reg_operand" "b")
(high:SI
(const
(minus:SI (match_operand:SI 2 "symbol_ref_operand" "s")
(match_operand:SI 3 "symbol_ref_operand" "s"))))))]
"TARGET_ELF && TARGET_SECURE_PLT && DEFAULT_ABI == ABI_V4 && flag_pic"
"addis %0,%1,%2-%3@ha")
(define_insn "load_toc_v4_PIC_3c"
[(set (match_operand:SI 0 "gpc_reg_operand" "=r")
(lo_sum:SI (match_operand:SI 1 "gpc_reg_operand" "b")
(minus:SI (match_operand:SI 2 "symbol_ref_operand" "s")
(match_operand:SI 3 "symbol_ref_operand" "s"))))]
(lo_sum:SI
(match_operand:SI 1 "gpc_reg_operand" "b")
(const
(minus:SI (match_operand:SI 2 "symbol_ref_operand" "s")
(match_operand:SI 3 "symbol_ref_operand" "s")))))]
"TARGET_ELF && TARGET_SECURE_PLT && DEFAULT_ABI == ABI_V4 && flag_pic"
"addi %0,%1,%2-%3@l")

13
gcc/testsuite/ChangeLog
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@ -1,3 +1,16 @@
2018-01-15 Segher Boessenkool <segher@kernel.crashing.org>
Backport from mainline
2018-01-10 Segher Boessenkool <segher@kernel.crashing.org>
PR target/83629
* gcc.target/powerpc/pr83629.c: New testcase.
2018-01-12 Segher Boessenkool <segher@kernel.crashing.org>
PR target/83629
* gcc.target/powerpc/pr83629.c: Require ilp32.
2018-01-15 H.J. Lu <hongjiu.lu@intel.com>
Backport from mainline

10
gcc/testsuite/gcc.target/powerpc/pr83629.c Normal file
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@ -0,0 +1,10 @@
/* { dg-require-effective-target ilp32 } */
/* { dg-options "-O2 -fPIC -frename-registers --param=sched-autopref-queue-depth=0 -mcpu=603" } */
extern void bar (void *);
void
foo (void)
{
bar ("");
}