diff options
Diffstat (limited to 'meta/recipes-devtools/gcc/gcc/0025-gcc-testsuite-tweaks-for-mips-OE.patch')
| -rw-r--r-- | meta/recipes-devtools/gcc/gcc/0025-gcc-testsuite-tweaks-for-mips-OE.patch | 233 |
1 files changed, 233 insertions, 0 deletions
diff --git a/meta/recipes-devtools/gcc/gcc/0025-gcc-testsuite-tweaks-for-mips-OE.patch b/meta/recipes-devtools/gcc/gcc/0025-gcc-testsuite-tweaks-for-mips-OE.patch new file mode 100644 index 0000000000..e4d57c27ef --- /dev/null +++ b/meta/recipes-devtools/gcc/gcc/0025-gcc-testsuite-tweaks-for-mips-OE.patch @@ -0,0 +1,233 @@ +From f12acc6a383546d48da3bdfb2f25ca2adb7976d7 Mon Sep 17 00:00:00 2001 +From: Richard Purdie <richard.purdie@linuxfoundation.org> +Date: Sun, 13 Aug 2023 10:24:05 +0100 +Subject: [PATCH] gcc testsuite tweaks for mips/OE + +Disable loongson-mmi runtine, qemu doesn't appear to fully support them even if some +of the instruction decoding is there. + +Also disable MSA mips runtime extensions. For some reason qemu appears to accept the test +code when it shouldn't. Our selected MIPS cpu for QEMU doesn't support them. + +MIPS is unusual in the gcc testsuite as it uses EFFECTIVE_TARGETS and loops +multiple times through the vector testsuite. In the case of the two above, we can +compile/link them but not run them. Even with the runtime disabled, if the code +marks it as a runtime test, it will elevate itself to that. Setting the default +target to compile therefore isn't enough. + +Therefore add code to downgrade runtime tests to link tests if the hardware +support isn't there to run them. This avoids thousands of test failures. To do +this we have to hook downgrade code into the main test runner. + +Enable that downgrading for other cases where hardware to run vector extensions is +unavailable to remove test failures on other architectures too. + +Also, for gcc.target tests, add checks on wheter loongson or msa code can +be run before trying that, allowing downgrading of tests there to work too. + +Upstream-Status: Pending +[Parts of the patch may be able to be split off and acceptable to upstream with +discussion. Need to investigate why qemu-user passes the 'bad' instructions'] + +Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org> +--- + gcc/testsuite/gcc.target/mips/mips.exp | 16 +++++++++ + gcc/testsuite/lib/gcc-dg.exp | 11 +++++++ + gcc/testsuite/lib/target-supports.exp | 45 ++++++++------------------ + 3 files changed, 41 insertions(+), 31 deletions(-) + +diff --git a/gcc/testsuite/gcc.target/mips/mips.exp b/gcc/testsuite/gcc.target/mips/mips.exp +index 15d574202d3..2cef9709774 100644 +--- a/gcc/testsuite/gcc.target/mips/mips.exp ++++ b/gcc/testsuite/gcc.target/mips/mips.exp +@@ -709,7 +709,23 @@ proc mips_first_unsupported_option { upstatus } { + global mips_option_tests + upvar $upstatus status + ++ if { [mips_have_test_option_p status "-mmsa"] } { ++ verbose -log "Found -mmsa" ++ if { ![check_mips_msa_hw_available] } { ++ verbose -log "No MSA avail" ++ return "-mmsa" ++ } ++ } ++ if { [mips_have_test_option_p status "-mloongson-mmi"] } { ++ verbose -log "Found -mloonson-mmi" ++ if { ![check_mips_loongson_mmi_hw_available] } { ++ verbose -log "No MMI avail" ++ return "-mloonson-mmi" ++ } ++ } ++ + foreach { option code } [array get mips_option_tests] { ++ + if { [mips_have_test_option_p status $option] } { + regsub -all "\n" $code "\\n\\\n" asm + # Use check_runtime from target-supports.exp, which caches +diff --git a/gcc/testsuite/lib/gcc-dg.exp b/gcc/testsuite/lib/gcc-dg.exp +index 9d79b9402e9..e0e5cbb1af8 100644 +--- a/gcc/testsuite/lib/gcc-dg.exp ++++ b/gcc/testsuite/lib/gcc-dg.exp +@@ -240,9 +240,20 @@ proc schedule-cleanups { opts } { + + proc gcc-dg-test-1 { target_compile prog do_what extra_tool_flags } { + # Set up the compiler flags, based on what we're going to do. ++ global do-what-limit + + set options [list] + ++ if [info exists do-what-limit] then { ++ # Demote run tests to $do-what-limit if set ++ switch $do_what { ++ run { ++ set do_what ${do-what-limit} ++ set dg-do-what ${do-what-limit} ++ } ++ } ++ } ++ + switch $do_what { + "preprocess" { + set compile_type "preprocess" +diff --git a/gcc/testsuite/lib/target-supports.exp b/gcc/testsuite/lib/target-supports.exp +index 40f71e9ed8b..10e267fa16d 100644 +--- a/gcc/testsuite/lib/target-supports.exp ++++ b/gcc/testsuite/lib/target-supports.exp +@@ -2155,14 +2155,7 @@ proc check_mips_loongson_mmi_hw_available { } { + if { !([istarget mips*-*-*]) } { + expr 0 + } else { +- check_runtime_nocache mips_loongson_mmi_hw_available { +- #include <loongson-mmiintrin.h> +- int main() +- { +- asm volatile ("paddw $f2,$f4,$f6"); +- return 0; +- } +- } "-mloongson-mmi" ++ expr 0 + } + }] + } +@@ -2176,29 +2169,7 @@ proc check_mips_msa_hw_available { } { + if { !([istarget mips*-*-*]) } { + expr 0 + } else { +- check_runtime_nocache mips_msa_hw_available { +- #if !defined(__mips_msa) +- #error "MSA NOT AVAIL" +- #else +- #if !(((__mips == 64) || (__mips == 32)) && (__mips_isa_rev >= 2)) +- #error "MSA NOT AVAIL FOR ISA REV < 2" +- #endif +- #if !defined(__mips_hard_float) +- #error "MSA HARD_FLOAT REQUIRED" +- #endif +- #if __mips_fpr != 64 +- #error "MSA 64-bit FPR REQUIRED" +- #endif +- #include <msa.h> +- +- int main() +- { +- v8i16 v = __builtin_msa_ldi_h (0); +- v[0] = 0; +- return v[0]; +- } +- #endif +- } "-mmsa" ++ expr 0 + } + }] + } +@@ -9187,6 +9158,7 @@ proc is-effective-target-keyword { arg } { + + proc et-dg-runtest { runtest testcases flags default-extra-flags } { + global dg-do-what-default ++ global do-what-limit + global EFFECTIVE_TARGETS + global et_index + +@@ -9194,6 +9166,7 @@ proc et-dg-runtest { runtest testcases flags default-extra-flags } { + foreach target $EFFECTIVE_TARGETS { + set target_flags $flags + set dg-do-what-default compile ++ set do-what-limit link + set et_index [lsearch -exact $EFFECTIVE_TARGETS $target] + if { [info procs add_options_for_${target}] != [list] } { + set target_flags [add_options_for_${target} "$flags"] +@@ -9201,8 +9174,10 @@ proc et-dg-runtest { runtest testcases flags default-extra-flags } { + if { [info procs check_effective_target_${target}_runtime] + != [list] && [check_effective_target_${target}_runtime] } { + set dg-do-what-default run ++ set do-what-limit run + } + $runtest $testcases $target_flags ${default-extra-flags} ++ unset do-what-limit + } + } else { + set et_index 0 +@@ -10789,6 +10764,7 @@ proc check_effective_target_sigsetjmp {} { + proc check_vect_support_and_set_flags { } { + global DEFAULT_VECTCFLAGS + global dg-do-what-default ++ global do-what-limit + global EFFECTIVE_TARGETS + + if [istarget powerpc-*paired*] { +@@ -10797,6 +10773,7 @@ proc check_vect_support_and_set_flags { } { + set dg-do-what-default run + } else { + set dg-do-what-default compile ++ set do-what-limit link + } + } elseif [istarget powerpc*-*-*] { + # Skip targets not supporting -maltivec. +@@ -10821,6 +10798,7 @@ proc check_vect_support_and_set_flags { } { + lappend DEFAULT_VECTCFLAGS "-mcpu=970" + } + set dg-do-what-default compile ++ set do-what-limit link + } + } elseif { [istarget i?86-*-*] || [istarget x86_64-*-*] } { + lappend DEFAULT_VECTCFLAGS "-msse2" +@@ -10828,6 +10806,7 @@ proc check_vect_support_and_set_flags { } { + set dg-do-what-default run + } else { + set dg-do-what-default compile ++ set do-what-limit link + } + } elseif { [istarget mips*-*-*] + && [check_effective_target_nomips16] } { +@@ -10847,6 +10826,7 @@ proc check_vect_support_and_set_flags { } { + set dg-do-what-default run + } else { + set dg-do-what-default compile ++ set do-what-limit link + } + } elseif [istarget alpha*-*-*] { + # Alpha's vectorization capabilities are extremely limited. +@@ -10860,6 +10840,7 @@ proc check_vect_support_and_set_flags { } { + set dg-do-what-default run + } else { + set dg-do-what-default compile ++ set do-what-limit link + } + } elseif [istarget ia64-*-*] { + set dg-do-what-default run +@@ -10873,6 +10854,7 @@ proc check_vect_support_and_set_flags { } { + set dg-do-what-default run + } else { + set dg-do-what-default compile ++ set do-what-limit link + } + } elseif [istarget aarch64*-*-*] { + set dg-do-what-default run +@@ -10897,6 +10879,7 @@ proc check_vect_support_and_set_flags { } { + } else { + lappend DEFAULT_VECTCFLAGS "-march=z14" "-mzarch" + set dg-do-what-default compile ++ set do-what-limit link + } + } elseif [istarget amdgcn-*-*] { + set dg-do-what-default run |