When compiling with '-mcmodel=medium', the function call is made through
'pcaddu18i+jirl' if binutils supports call36, otherwise the
native implementation 'pcalau12i+jirl' is used.
gcc/ChangeLog:
* config.in: Regenerate.
* config/loongarch/loongarch-opts.h (HAVE_AS_SUPPORT_CALL36): Define
macro.
* config/loongarch/loongarch.cc (loongarch_legitimize_call_address):
If binutils supports call36, the function call is not split over expand.
* config/loongarch/loongarch.md: Add call36 generation code.
* config/loongarch/predicates.md: Likewise.
* configure: Regenerate.
* configure.ac: Check whether binutils supports call36.
gcc/testsuite/ChangeLog:
* gcc.target/loongarch/func-call-medium-5.c: If the assembler supports
call36,
the test is abandoned.
* gcc.target/loongarch/func-call-medium-6.c: Likewise.
* gcc.target/loongarch/func-call-medium-7.c: Likewise.
* gcc.target/loongarch/func-call-medium-8.c: Likewise.
* lib/target-supports.exp: Added a function to see if the assembler
supports
the call36 relocation.
* gcc.target/loongarch/func-call-medium-call36-1.c: New test.
* gcc.target/loongarch/func-call-medium-call36.c: New test.
Co-authored-by: Xi Ruoyao <xry...@xry111.site>
---
v1 -> v2:
1. Add '(clobber (reg:P 12))' instead of '-fno-ipa-ra' in sibcall
implementation.
2. Add test cases.
---
gcc/config.in | 6 +
gcc/config/loongarch/loongarch-opts.h | 4 +
gcc/config/loongarch/loongarch.cc | 12 +-
gcc/config/loongarch/loongarch.md | 171 +++++++++++++++---
gcc/config/loongarch/predicates.md | 7 +-
gcc/configure | 32 ++++
gcc/configure.ac | 6 +
.../gcc.target/loongarch/func-call-medium-5.c | 1 +
.../gcc.target/loongarch/func-call-medium-6.c | 1 +
.../gcc.target/loongarch/func-call-medium-7.c | 1 +
.../gcc.target/loongarch/func-call-medium-8.c | 1 +
.../loongarch/func-call-medium-call36-1.c | 21 +++
.../loongarch/func-call-medium-call36.c | 32 ++++
gcc/testsuite/lib/target-supports.exp | 9 +
14 files changed, 268 insertions(+), 36 deletions(-)
create mode 100644
gcc/testsuite/gcc.target/loongarch/func-call-medium-call36-1.c
create mode 100644
gcc/testsuite/gcc.target/loongarch/func-call-medium-call36.c
diff --git a/gcc/config.in b/gcc/config.in
index 866f9fff101..e100c20dcd0 100644
--- a/gcc/config.in
+++ b/gcc/config.in
@@ -781,6 +781,12 @@
#endif
+/* Define if your assembler supports call36 relocation. */
+#ifndef USED_FOR_TARGET
+#undef HAVE_AS_SUPPORT_CALL36
+#endif
+
+
/* Define if your assembler and linker support thread-local storage. */
#ifndef USED_FOR_TARGET
#undef HAVE_AS_TLS
diff --git a/gcc/config/loongarch/loongarch-opts.h
b/gcc/config/loongarch/loongarch-opts.h
index 8de41bbc4f7..6dd309aad96 100644
--- a/gcc/config/loongarch/loongarch-opts.h
+++ b/gcc/config/loongarch/loongarch-opts.h
@@ -97,6 +97,10 @@ loongarch_update_gcc_opt_status (struct loongarch_target
*target,
#define HAVE_AS_EXPLICIT_RELOCS 0
#endif
+#ifndef HAVE_AS_SUPPORT_CALL36
+#define HAVE_AS_SUPPORT_CALL36 0
+#endif
+
#ifndef HAVE_AS_MRELAX_OPTION
#define HAVE_AS_MRELAX_OPTION 0
#endif
diff --git a/gcc/config/loongarch/loongarch.cc
b/gcc/config/loongarch/loongarch.cc
index 738911661d7..0bd416255be 100644
--- a/gcc/config/loongarch/loongarch.cc
+++ b/gcc/config/loongarch/loongarch.cc
@@ -3006,12 +3006,16 @@ loongarch_legitimize_call_address (rtx addr)
enum loongarch_symbol_type symbol_type = loongarch_classify_symbol (addr);
- /* Split function call insn 'bl sym' or 'bl %plt(sym)' to :
- pcalau12i $rd, %pc_hi20(sym)
- jr $rd, %pc_lo12(sym). */
+ /* If add the compilation option '-cmodel=medium', and the assembler does
+ not support call36. The following sequence of instructions will be
+ used for the function call:
+ pcalau12i $rd, %pc_hi20(sym)
+ jr $rd, %pc_lo12(sym)
+ */
if (TARGET_CMODEL_MEDIUM
- && TARGET_EXPLICIT_RELOCS
+ && !HAVE_AS_SUPPORT_CALL36
+ && (la_opt_explicit_relocs != EXPLICIT_RELOCS_NONE)
&& (SYMBOL_REF_P (addr) || LABEL_REF_P (addr))
&& (symbol_type == SYMBOL_PCREL
|| (symbol_type == SYMBOL_GOT_DISP && flag_plt)))
diff --git a/gcc/config/loongarch/loongarch.md
b/gcc/config/loongarch/loongarch.md
index 22814a3679c..f0b6ae3e2a2 100644
--- a/gcc/config/loongarch/loongarch.md
+++ b/gcc/config/loongarch/loongarch.md
@@ -3274,7 +3274,13 @@ (define_expand "sibcall"
XEXP (target, 1),
operands[1]));
else
- emit_call_insn (gen_sibcall_internal (target, operands[1]));
+ {
+ rtx call = emit_call_insn (gen_sibcall_internal (target, operands[1]));
+
+ if (TARGET_CMODEL_MEDIUM && !REG_P (target))
+ clobber_reg (&CALL_INSN_FUNCTION_USAGE (call),
+ gen_rtx_REG (Pmode, T0_REGNUM));
+ }
DONE;
})
@@ -3282,10 +3288,25 @@ (define_insn "sibcall_internal"
[(call (mem:SI (match_operand 0 "call_insn_operand" "j,c,b"))
(match_operand 1 "" ""))]
"SIBLING_CALL_P (insn)"
- "@
- jr\t%0
- b\t%0
- b\t%%plt(%0)"
+{
+ switch (which_alternative)
+ {
+ case 0:
+ return "jr\t%0";
+ case 1:
+ if (TARGET_CMODEL_MEDIUM)
+ return "pcaddu18i\t$r12,%%call36(%0)\n\tjirl\t$r0,$r12,0";
+ else
+ return "b\t%0";
+ case 2:
+ if (TARGET_CMODEL_MEDIUM)
+ return "pcaddu18i\t$r12,%%call36(%0)\n\tjirl\t$r0,$r12,0";
+ else
+ return "b\t%%plt(%0)";
+ default:
+ gcc_unreachable ();
+ }
+}
[(set_attr "jirl" "indirect,direct,direct")])
(define_insn "@sibcall_internal_1<mode>"
@@ -3318,9 +3339,17 @@ (define_expand "sibcall_value"
operands[2],
arg2));
else
- emit_call_insn (gen_sibcall_value_multiple_internal (arg1, target,
- operands[2],
- arg2));
+ {
+ rtx call
+ = emit_call_insn (gen_sibcall_value_multiple_internal (arg1,
+ target,
+ operands[2],
+ arg2));
+
+ if (TARGET_CMODEL_MEDIUM && !REG_P (target))
+ clobber_reg (&CALL_INSN_FUNCTION_USAGE (call),
+ gen_rtx_REG (Pmode, T0_REGNUM));
+ }
}
else
{
@@ -3334,8 +3363,15 @@ (define_expand "sibcall_value"
XEXP (target, 1),
operands[2]));
else
- emit_call_insn (gen_sibcall_value_internal (operands[0], target,
- operands[2]));
+ {
+ rtx call = emit_call_insn (gen_sibcall_value_internal (operands[0],
+ target,
+ operands[2]));
+
+ if (TARGET_CMODEL_MEDIUM && !REG_P (target))
+ clobber_reg (&CALL_INSN_FUNCTION_USAGE (call),
+ gen_rtx_REG (Pmode, T0_REGNUM));
+ }
}
DONE;
})
@@ -3345,10 +3381,25 @@ (define_insn "sibcall_value_internal"
(call (mem:SI (match_operand 1 "call_insn_operand" "j,c,b"))
(match_operand 2 "" "")))]
"SIBLING_CALL_P (insn)"
- "@
- jr\t%1
- b\t%1
- b\t%%plt(%1)"
+{
+ switch (which_alternative)
+ {
+ case 0:
+ return "jr\t%1";
+ case 1:
+ if (TARGET_CMODEL_MEDIUM)
+ return "pcaddu18i\t$r12,%%call36(%1)\n\tjirl\t$r0,$r12,0";
+ else
+ return "b\t%1";
+ case 2:
+ if (TARGET_CMODEL_MEDIUM)
+ return "pcaddu18i\t$r12,%%call36(%1)\n\tjirl\t$r0,$r12,0";
+ else
+ return "b\t%%plt(%1)";
+ default:
+ gcc_unreachable ();
+ }
+}
[(set_attr "jirl" "indirect,direct,direct")])
(define_insn "@sibcall_value_internal_1<mode>"
@@ -3368,10 +3419,25 @@ (define_insn "sibcall_value_multiple_internal"
(call (mem:SI (match_dup 1))
(match_dup 2)))]
"SIBLING_CALL_P (insn)"
- "@
- jr\t%1
- b\t%1
- b\t%%plt(%1)"
+{
+ switch (which_alternative)
+ {
+ case 0:
+ return "jr\t%1";
+ case 1:
+ if (TARGET_CMODEL_MEDIUM)
+ return "pcaddu18i\t$r12,%%call36(%1)\n\tjirl\t$r0,$r12,0";
+ else
+ return "b\t%1";
+ case 2:
+ if (TARGET_CMODEL_MEDIUM)
+ return "pcaddu18i\t$r12,%%call36(%1)\n\tjirl\t$r0,$r12,0";
+ else
+ return "b\t%%plt(%1)";
+ default:
+ gcc_unreachable ();
+ }
+}
[(set_attr "jirl" "indirect,direct,direct")])
(define_insn "@sibcall_value_multiple_internal_1<mode>"
@@ -3411,10 +3477,25 @@ (define_insn "call_internal"
(match_operand 1 "" ""))
(clobber (reg:SI RETURN_ADDR_REGNUM))]
""
- "@
- jirl\t$r1,%0,0
- bl\t%0
- bl\t%%plt(%0)"
+{
+ switch (which_alternative)
+ {
+ case 0:
+ return "jirl\t$r1,%0,0";
+ case 1:
+ if (TARGET_CMODEL_MEDIUM)
+ return "pcaddu18i\t$r1,%%call36(%0)\n\tjirl\t$r1,$r1,0";
+ else
+ return "bl\t%0";
+ case 2:
+ if (TARGET_CMODEL_MEDIUM)
+ return "pcaddu18i\t$r1,%%call36(%0)\n\tjirl\t$r1,$r1,0";
+ else
+ return "bl\t%%plt(%0)";
+ default:
+ gcc_unreachable ();
+ }
+}
[(set_attr "jirl" "indirect,direct,direct")])
(define_insn "@call_internal_1<mode>"
@@ -3473,10 +3554,25 @@ (define_insn "call_value_internal"
(match_operand 2 "" "")))
(clobber (reg:SI RETURN_ADDR_REGNUM))]
""
- "@
- jirl\t$r1,%1,0
- bl\t%1
- bl\t%%plt(%1)"
+{
+ switch (which_alternative)
+ {
+ case 0:
+ return "jirl\t$r1,%1,0";
+ case 1:
+ if (TARGET_CMODEL_MEDIUM)
+ return "pcaddu18i\t$r1,%%call36(%1)\n\tjirl\t$r1,$r1,0";
+ else
+ return "bl\t%1";
+ case 2:
+ if (TARGET_CMODEL_MEDIUM)
+ return "pcaddu18i\t$r1,%%call36(%1)\n\tjirl\t$r1,$r1,0";
+ else
+ return "bl\t%%plt(%1)";
+ default:
+ gcc_unreachable ();
+ }
+}
[(set_attr "jirl" "indirect,direct,direct")])
(define_insn "@call_value_internal_1<mode>"
@@ -3498,10 +3594,25 @@ (define_insn "call_value_multiple_internal"
(match_dup 2)))
(clobber (reg:SI RETURN_ADDR_REGNUM))]
""
- "@
- jirl\t$r1,%1,0
- bl\t%1
- bl\t%%plt(%1)"
+{
+ switch (which_alternative)
+ {
+ case 0:
+ return "jirl\t$r1,%1,0";
+ case 1:
+ if (TARGET_CMODEL_MEDIUM)
+ return "pcaddu18i\t$r1,%%call36(%1)\n\tjirl\t$r1,$r1,0";
+ else
+ return "bl\t%1";
+ case 2:
+ if (TARGET_CMODEL_MEDIUM)
+ return "pcaddu18i\t$r1,%%call36(%1)\n\tjirl\t$r1,$r1,0";
+ else
+ return "bl\t%%plt(%1)";
+ default:
+ gcc_unreachable ();
+ }
+}
[(set_attr "jirl" "indirect,direct,direct")])
(define_insn "@call_value_multiple_internal_1<mode>"
diff --git a/gcc/config/loongarch/predicates.md
b/gcc/config/loongarch/predicates.md
index 946ed0d8212..56f7c48e126 100644
--- a/gcc/config/loongarch/predicates.md
+++ b/gcc/config/loongarch/predicates.md
@@ -443,7 +443,9 @@ (define_predicate "const_call_insn_operand"
{
case SYMBOL_PCREL:
if (TARGET_CMODEL_EXTREME
- || (TARGET_CMODEL_MEDIUM && !TARGET_EXPLICIT_RELOCS))
+ || (TARGET_CMODEL_MEDIUM
+ && HAVE_AS_SUPPORT_CALL36
+ && (la_opt_explicit_relocs == EXPLICIT_RELOCS_NONE)))
return false;
else
return 1;
@@ -452,7 +454,8 @@ (define_predicate "const_call_insn_operand"
if (TARGET_CMODEL_EXTREME
|| !flag_plt
|| (flag_plt && TARGET_CMODEL_MEDIUM
- && !TARGET_EXPLICIT_RELOCS))
+ && HAVE_AS_SUPPORT_CALL36
+ && (la_opt_explicit_relocs == EXPLICIT_RELOCS_NONE)))
return false;
else
return 1;
diff --git a/gcc/configure b/gcc/configure
index ee97934ac4f..cc0c3aad67b 100755
--- a/gcc/configure
+++ b/gcc/configure
@@ -30951,6 +30951,38 @@ if test $gcc_cv_as_loongarch_explicit_relocs = yes;
then
$as_echo "#define HAVE_AS_EXPLICIT_RELOCS 1" >>confdefs.h
+fi
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for call36 relocation
support" >&5
+$as_echo_n "checking assembler for call36 relocation support... " >&6; }
+if ${gcc_cv_as_loongarch_call36+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ gcc_cv_as_loongarch_call36=no
+ if test x$gcc_cv_as != x; then
+ $as_echo 'pcaddu18i $r1, %call36(a)
+ jirl $r1, $r1, 0' > conftest.s
+ if { ac_try='$gcc_cv_as $gcc_cv_as_flags -o conftest.o conftest.s >&5'
+ { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; }
+ then
+ gcc_cv_as_loongarch_call36=yes
+ else
+ echo "configure: failed program was" >&5
+ cat conftest.s >&5
+ fi
+ rm -f conftest.o conftest.s
+ fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_as_loongarch_call36"
>&5
+$as_echo "$gcc_cv_as_loongarch_call36" >&6; }
+if test $gcc_cv_as_loongarch_call36 = yes; then
+
+$as_echo "#define HAVE_AS_SUPPORT_CALL36 1" >>confdefs.h
+
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for eh_frame pcrel encoding support" >&5
diff --git a/gcc/configure.ac b/gcc/configure.ac
index d0caf820648..d9a35069e30 100644
--- a/gcc/configure.ac
+++ b/gcc/configure.ac
@@ -5441,6 +5441,12 @@ x:
[a:pcalau12i $t0,%pc_hi20(a)],,
[AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
[Define if your assembler supports explicit relocation.])])
+ gcc_GAS_CHECK_FEATURE([call36 relocation support],
+ gcc_cv_as_loongarch_call36,,
+ [pcaddu18i $r1, %call36(a)
+ jirl $r1, $r1, 0],,
+ [AC_DEFINE(HAVE_AS_SUPPORT_CALL36, 1,
+ [Define if your assembler supports call36 relocation.])])
gcc_GAS_CHECK_FEATURE([eh_frame pcrel encoding support],
gcc_cv_as_loongarch_eh_frame_pcrel_encoding_support,,
[.cfi_startproc
diff --git a/gcc/testsuite/gcc.target/loongarch/func-call-medium-5.c
b/gcc/testsuite/gcc.target/loongarch/func-call-medium-5.c
index 8a47b5afcba..cae880bd80c 100644
--- a/gcc/testsuite/gcc.target/loongarch/func-call-medium-5.c
+++ b/gcc/testsuite/gcc.target/loongarch/func-call-medium-5.c
@@ -1,4 +1,5 @@
/* { dg-do compile } */
+/* { dg-skip-if "dg-require-effective-target loongarch_call36_support" { *-*-*
} } */
/* { dg-options "-mabi=lp64d -O0 -fpic -fplt -mexplicit-relocs
-mcmodel=medium" } */
/* { dg-final { scan-assembler
"test:.*pcalau12i.*%pc_hi20\\(g\\)\n\tjirl.*pc_lo12\\(g\\)" } } */
/* { dg-final { scan-assembler
"test1:.*pcalau12i.*%pc_hi20\\(f\\)\n\tjirl.*%pc_lo12\\(f\\)" } } */
diff --git a/gcc/testsuite/gcc.target/loongarch/func-call-medium-6.c
b/gcc/testsuite/gcc.target/loongarch/func-call-medium-6.c
index 1e75e60e01a..33819542d83 100644
--- a/gcc/testsuite/gcc.target/loongarch/func-call-medium-6.c
+++ b/gcc/testsuite/gcc.target/loongarch/func-call-medium-6.c
@@ -1,4 +1,5 @@
/* { dg-do compile } */
+/* { dg-skip-if "dg-require-effective-target loongarch_call36_support" { *-*-*
} } */
/* { dg-options "-mabi=lp64d -O0 -fno-pic -fplt -mexplicit-relocs
-mcmodel=medium" } */
/* { dg-final { scan-assembler
"test:.*pcalau12i.*%pc_hi20\\(g\\)\n\tjirl.*pc_lo12\\(g\\)" } } */
/* { dg-final { scan-assembler
"test1:.*pcalau12i.*%pc_hi20\\(f\\)\n\tjirl.*%pc_lo12\\(f\\)" } } */
diff --git a/gcc/testsuite/gcc.target/loongarch/func-call-medium-7.c
b/gcc/testsuite/gcc.target/loongarch/func-call-medium-7.c
index 9e89085ca19..969b59d043e 100644
--- a/gcc/testsuite/gcc.target/loongarch/func-call-medium-7.c
+++ b/gcc/testsuite/gcc.target/loongarch/func-call-medium-7.c
@@ -1,4 +1,5 @@
/* { dg-do compile } */
+/* { dg-skip-if "dg-require-effective-target loongarch_call36_support" { *-*-*
} } */
/* { dg-options "-mabi=lp64d -O0 -fpic -fno-plt -mexplicit-relocs
-mcmodel=medium" } */
/* { dg-final { scan-assembler
"test:.*pcalau12i\t.*%got_pc_hi20\\(g\\)\n\tld\.d\t.*%got_pc_lo12\\(g\\)\n\tjirl"
} } */
/* { dg-final { scan-assembler
"test1:.*pcalau12i\t.*%got_pc_hi20\\(f\\)\n\tld\.d\t.*%got_pc_lo12\\(f\\)\n\tjirl"
} } */
diff --git a/gcc/testsuite/gcc.target/loongarch/func-call-medium-8.c
b/gcc/testsuite/gcc.target/loongarch/func-call-medium-8.c
index fde9c6e0ef4..786ff395f0b 100644
--- a/gcc/testsuite/gcc.target/loongarch/func-call-medium-8.c
+++ b/gcc/testsuite/gcc.target/loongarch/func-call-medium-8.c
@@ -1,4 +1,5 @@
/* { dg-do compile } */
+/* { dg-skip-if "dg-require-effective-target loongarch_call36_support" { *-*-*
} } */
/* { dg-options "-mabi=lp64d -O0 -fno-pic -fno-plt -mexplicit-relocs
-mcmodel=medium" } */
/* { dg-final { scan-assembler
"test:.*pcalau12i\t.*%got_pc_hi20\\(g\\)\n\tld\.d\t.*%got_pc_lo12\\(g\\)\n\tjirl"
} } */
/* { dg-final { scan-assembler
"test1:.*pcalau12i\t.*%pc_hi20\\(f\\)\n\tjirl.*%pc_lo12\\(f\\)" } } */
diff --git a/gcc/testsuite/gcc.target/loongarch/func-call-medium-call36-1.c
b/gcc/testsuite/gcc.target/loongarch/func-call-medium-call36-1.c
new file mode 100644
index 00000000000..872ff32f825
--- /dev/null
+++ b/gcc/testsuite/gcc.target/loongarch/func-call-medium-call36-1.c
@@ -0,0 +1,21 @@
+/* { dg-do compile } */
+/* { dg-require-effective-target loongarch_call36_support } */
+/* { dg-options "-mcmodel=medium -mexplicit-relocs -fdump-rtl-final -O2" } */
+/* { dg-final { scan-assembler "test:.*pcaddu18i\t\\\$r1,%call36\\(func\\)" }
} */
+/* { dg-final { scan-assembler
"test_value:.*pcaddu18i\t\\\$r1,%call36\\(func_value\\)" } } */
+
+extern void func (void);
+int
+test (void)
+{
+ func ();
+}
+
+
+extern int func_value (void);
+float
+test_value (void)
+{
+ func_value ();
+}
+
diff --git a/gcc/testsuite/gcc.target/loongarch/func-call-medium-call36.c
b/gcc/testsuite/gcc.target/loongarch/func-call-medium-call36.c
new file mode 100644
index 00000000000..98ccd260df5
--- /dev/null
+++ b/gcc/testsuite/gcc.target/loongarch/func-call-medium-call36.c
@@ -0,0 +1,32 @@
+/* { dg-do compile } */
+/* { dg-require-effective-target loongarch_call36_support } */
+/* { dg-options "-mcmodel=medium -mexplicit-relocs -fdump-rtl-final -O2" } */
+/* { dg-final { scan-rtl-dump-times "\\(clobber \\(reg:DI 12 \\\$r12\\)\\)" 3
"final" } } */
+/* { dg-final { scan-assembler "test:.*pcaddu18i\t\\\$r12,%call36\\(func\\)" }
} */
+/* { dg-final { scan-assembler
"test_value:.*pcaddu18i\t\\\$r12,%call36\\(func_value\\)" } } */
+/* { dg-final { scan-assembler
"test_multi:.*pcaddu18i\t\\\$r12,%call36\\(func_multi\\)" } } */
+
+extern void func (void);
+void
+test (void)
+{
+ func();
+}
+
+
+extern int func_value (void);
+int
+test_value (void)
+{
+ func_value ();
+}
+
+struct t {float a; float b;};
+
+extern struct t func_multi (void);
+struct t
+test_multi (void)
+{
+ func_multi ();
+}
+
diff --git a/gcc/testsuite/lib/target-supports.exp
b/gcc/testsuite/lib/target-supports.exp
index b6a2e4fd096..8777e3b05e0 100644
--- a/gcc/testsuite/lib/target-supports.exp
+++ b/gcc/testsuite/lib/target-supports.exp
@@ -13176,6 +13176,15 @@ proc check_effective_target_loongarch_asx_hw { } {
} "-mlasx"]
}
+# Check whether LoongArch binutils supports call36 relocation.
+proc check_effective_target_loongarch_call36_support { } {
+ return [check_no_compiler_messages loongarch_call36_support object {
+/* Assembly code */
+ pcaddu18i $r1,%call36(a)
+ jirl $r1,$r1,0
+ } ""]
+}
+
# Appends necessary Python flags to extra-tool-flags if Python.h is supported.
# Otherwise, modifies dg-do-what.
proc dg-require-python-h { args } {
