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# Run compatibility tests in which the "alt" compiler tries to force
# MIPS16 mode.
# We can only guarantee MIPS16 runtime support for certain targets.
if { ![istarget mipsisa*-*-elf*] && ![istarget mips64vr*-*-elf*] } {
return
}
load_lib gcc-dg.exp
# Check whether the flags are compatible with MIPS16 code generation.
if { ![check_effective_target_mips16_attribute] } {
return
}
# Save the old value of CFLAGS_FOR_TARGET, if any.
global saved_CFLAGS_FOR_TARGET
if { [info exists CFLAGS_FOR_TARGET] } {
set saved_CFLAGS_FOR_TARGET $CFLAGS_FOR_TARGET
} else {
unset -nocomplain saved_CFLAGS_FOR_TARGET
}
# The "alt" compiler is the normal compiler with an extra "-mips16" argument.
proc compat-use-alt-compiler { } {
global saved_CFLAGS_FOR_TARGET CFLAGS_FOR_TARGET
if { [info exists saved_CFLAGS_FOR_TARGET] } {
set CFLAGS_FOR_TARGET [concat $saved_CFLAGS_FOR_TARGET "-mips16"]
} else {
set CFLAGS_FOR_TARGET "-mips16"
}
}
# Make the compiler under test the default.
proc compat-use-tst-compiler { } {
global saved_CFLAGS_FOR_TARGET CFLAGS_FOR_TARGET
if { [info exists saved_CFLAGS_FOR_TARGET] } {
set CFLAGS_FOR_TARGET $saved_CFLAGS_FOR_TARGET
} else {
unset -nocomplain CFLAGS_FOR_TARGET
}
}
load_lib compat.exp
gcc_init
foreach src [lsort [find $srcdir/$subdir mips16_*_main.c]] {
if { [runtest_file_p $runtests $src] } {
compat-execute $src "mips16_inter" 1
}
}
compat-use-tst-compiler
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