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2023-07-25s390x: spelling fixesMichael Tokarev1-1/+1
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru> Reviewed-by: Thomas Huth <thuth@redhat.com>
2023-07-24tests/tcg/s390x: Test VCKSMIlya Leoshkevich3-0/+34
Add a small test to prevent regressions. Tested-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Message-Id: <20230724082032.66864-15-iii@linux.ibm.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-07-24tests/tcg/s390x: Test STPQIlya Leoshkevich2-0/+21
Add a small test to prevent regressions. Tested-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Message-Id: <20230724082032.66864-14-iii@linux.ibm.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-07-24tests/tcg/s390x: Test MCIlya Leoshkevich2-0/+57
Add a small test to prevent regressions. Tested-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Message-Id: <20230724082032.66864-13-iii@linux.ibm.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-07-24tests/tcg/s390x: Test ICMIlya Leoshkevich2-0/+33
Add a small test to prevent regressions. Tested-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Message-Id: <20230724082032.66864-12-iii@linux.ibm.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-07-24tests/tcg/s390x: Test CLMIlya Leoshkevich2-0/+30
Add a small test to prevent regressions. Tested-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Message-Id: <20230724082032.66864-11-iii@linux.ibm.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-07-24tests/tcg/s390x: Test CLGEBR and CGEBRAIlya Leoshkevich3-0/+69
Add a small test to prevent regressions. Tested-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Message-Id: <20230724082032.66864-10-iii@linux.ibm.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-07-24tests/tcg/s390x: Test CKSMIlya Leoshkevich2-0/+30
Add a small test to prevent regressions. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Message-Id: <20230724082032.66864-9-iii@linux.ibm.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-07-10tests/tcg/s390x: Fix test-svc with clangIlya Leoshkevich2-2/+4
clang does not support expressions involving symbols in instructions like lghi yet, so building hello-s390x-asm.S with it fails. Move the expression to the literal pool and load it from there. Fixes: be4a4cb42961 ("tests/tcg/s390x: Test single-stepping SVC") Reported-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Message-Id: <20230707154242.457706-1-iii@linux.ibm.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-07-10tests/tcg/s390x: Test MVCRL with a large value in R0Ilya Leoshkevich1-10/+36
Add a small test to prevent regressions. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Reviewed-by: David Hildenbrand <david@redhat.com> Message-Id: <20230704081506.276055-13-iii@linux.ibm.com> [thuth: Apply fix for compiling with GCC 11] Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-07-10tests/tcg/s390x: Test MDEB and MDEBRIlya Leoshkevich2-0/+31
Add a small test to prevent regressions. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Acked-by: David Hildenbrand <david@redhat.com> Message-Id: <20230704081506.276055-12-iii@linux.ibm.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-07-10tests/tcg/s390x: Test LRAIlya Leoshkevich2-0/+20
Add a small test to prevent regressions. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Message-Id: <20230704081506.276055-11-iii@linux.ibm.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-07-10tests/tcg/s390x: Test LARL with a large offsetIlya Leoshkevich2-0/+22
Add a small test to prevent regressions. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Acked-by: David Hildenbrand <david@redhat.com> Message-Id: <20230704081506.276055-10-iii@linux.ibm.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-07-10tests/tcg/s390x: Test EPSWIlya Leoshkevich2-0/+24
Add a small test to prevent regressions. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Reviewed-by: David Hildenbrand <david@redhat.com> Message-Id: <20230704081506.276055-9-iii@linux.ibm.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-06-29pc-bios/s390-ccw: Move the stack array into start.SThomas Huth1-5/+2
The stack array is only referenced from the start-up code (which is shared between the s390-ccw.img and the s390-netboot.img), but it is currently declared twice, once in main.c and once in netmain.c. It makes more sense to declare this in start.S instead - which will also be helpful in the next patch, since we need to mention the .bss section in start.S in that patch. While we're at it, let's also drop the huge alignment of the stack, since there is no technical requirement for aligning it to page boundaries. Message-Id: <20230627074703.99608-4-thuth@redhat.com> Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com> Reviewed-by: Eric Farman <farman@linux.ibm.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-06-05tests/tcg/s390x: Test MXDB and MXDBRIlya Leoshkevich2-0/+31
Add a small test to prevent regressions. Cc: qemu-stable@nongnu.org Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Message-Id: <20230601223027.795501-3-iii@linux.ibm.com> Acked-by: David Hildenbrand <david@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-06-05tests/tcg/s390x: Test single-stepping SVCIlya Leoshkevich3-1/+94
Add a small test to prevent regressions. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Acked-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20230510230213.330134-3-iii@linux.ibm.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-06-05tests/tcg/s390x: Test LOCFHRIlya Leoshkevich2-0/+30
Add a small test to prevent regressions. Cc: qemu-stable@nongnu.org Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Message-Id: <20230526181240.1425579-5-iii@linux.ibm.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: David Hildenbrand <david@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-06-05tests/tcg/s390x: Test LCBBIlya Leoshkevich2-0/+52
Add a test to prevent regressions. Cc: qemu-stable@nongnu.org Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Message-Id: <20230526181240.1425579-3-iii@linux.ibm.com> Reviewed-by: David Hildenbrand <david@redhat.com> Acked-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-05-16tests/tcg/s390x: Test EXECUTE of relative branchesIlya Leoshkevich2-0/+159
Add a small test to prevent regressions. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Acked-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230426235813.198183-3-iii@linux.ibm.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-05-16tests/tcg/s390x: Enable the multiarch system testsIlya Leoshkevich3-14/+69
Multiarch tests are written in C and need support for printing characters. Instead of implementing the runtime from scratch, just reuse the pc-bios/s390-ccw one. Run tests with -nographic in order to enable SCLP (enable this for the existing tests as well, since it does not hurt). Use the default linker script for the new tests. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230511114651.439872-3-iii@linux.ibm.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-04-27tests/tcg: limit the scope of the plugin testsAlex Bennée1-0/+3
Running every plugin with every test is getting excessive as well as not really improving coverage that much. Restrict the plugin tests to just the MULTIARCH_TESTS which are shared between most architecture for both system and user-mode. For those that aren't we need to squash MULTIARCH_TESTS so we don't add them when they are not part of the TESTS global. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Acked-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230424092249.58552-14-alex.bennee@linaro.org>
2023-03-20tests/tcg/s390x: Test unaligned accessesIlya Leoshkevich17-3/+311
Add a number of small test that check whether accessing unaligned addresses in various ways leads to a specification exception. Run these test both in softmmu and user configurations; expect a PGM in one case and SIGILL in the other. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Message-Id: <20230316164428.275147-13-iii@linux.ibm.com> [thuth: Added -Wl,--build-id=none to LDFLAGS] Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-03-20tests/tcg/s390x: Add ex-relative-long.cIlya Leoshkevich2-0/+157
Test EXECUTE and EXECUTE RELATIVE LONG with relative long instructions as targets. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Nina Schoetterl-Glausch <nsg@linux.ibm.com> Message-Id: <20230316210751.302423-3-iii@linux.ibm.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-03-20tests/tcg/s390x: Add rxsbg.cIlya Leoshkevich2-0/+49
Add a small test for RXSBG with T=1 to prevent regressions. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Message-Id: <20230316172205.281369-3-iii@linux.ibm.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-03-20tests/tcg/s390x: Add PSW modification testsIlya Leoshkevich6-0/+204
Add several small tests that check the PSW modification instructions: * lpsw.S checks whether LPSW works correctly in the "happy" case. * lpswe-early.S checks whether early exceptions are recognized and whether the correct ILC and old PSW are stored when they happen. * ssm-early.S, stosm-early.S and exrl-ssm-early.S check the special handling of SSM and STOSM with respect to early exceptions. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Message-Id: <20230315020408.384766-4-iii@linux.ibm.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-03-13tests/tcg/s390x: Add C(G)HRL testNina Schoetterl-Glausch2-0/+81
Test COMPARE HALFWORD RELATIVE LONG instructions. Test that the bytes following the second operand do not affect the instruction. Test the sign extension performed on the second operand. Signed-off-by: Nina Schoetterl-Glausch <nsg@linux.ibm.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: David Hildenbrand <david@redhat.com> Message-Id: <20230310114157.3024170-3-nsg@linux.ibm.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-03-07testing: probe gdb for supported architectures ahead of timeAlex Bennée1-1/+1
Currently when we encounter a gdb that is old or not built with multiarch in mind we fail rather messily. Try and improve the situation by probing ahead of time and setting HOST_GDB_SUPPORTS_ARCH=y in the relevant tcg configs. We can then skip and give a more meaningful message if we don't run the test. Cc: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230302190846.2593720-24-alex.bennee@linaro.org> Message-Id: <20230303025805.625589-24-richard.henderson@linaro.org>
2023-02-27tests/tcg/s390x: Add sam.SIlya Leoshkevich2-0/+68
Add a small test to prevent regressions. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20221129015328.55439-1-iii@linux.ibm.com> Message-Id: <20230220184052.163465-7-richard.henderson@linaro.org> Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-02-27tests/tcg/s390x: Add bal.SIlya Leoshkevich2-0/+25
Add a small test to prevent regressions. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20221103130011.2670186-1-iii@linux.ibm.com> Message-Id: <20230220184052.163465-6-richard.henderson@linaro.org> Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-02-14tests/tcg/s390x: Use -nostdlib for softmmu testsIlya Leoshkevich1-1/+1
The code currently uses -nostartfiles, but this does not prevent linking with libc. On Fedora there is no cross-libc, so the linking step fails. Fix by using the more comprehensive -nostdlib (that's also what probe_target_compiler() checks for as well). Fixes: 503e549e441e ("tests/tcg/s390x: Test unaligned accesses to lowcore") Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Message-Id: <20230131182057.2261614-1-iii@linux.ibm.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-02-04target/s390x: Use a single return for helper_divs64/u64Richard Henderson1-0/+35
Pack the quotient and remainder into a single Int128. Use the divu128 primitive to remove the cpu_abort on 32-bit hosts. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Acked-by: Ilya Leoshkevich <iii@linux.ibm.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- v2: Extended div test case to cover these insns.
2023-02-04tests/tcg/s390x: Add cdsg.cIlya Leoshkevich2-0/+97
Add a simple test to prevent regressions. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Message-Id: <20230201133257.3223115-1-iii@linux.ibm.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-02-04tests/tcg/s390x: Add long-double.cRichard Henderson2-0/+25
Acked-by: Ilya Leoshkevich <iii@linux.ibm.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-02-04tests/tcg/s390x: Add clst.cIlya Leoshkevich2-0/+83
Add a basic test to prevent regressions. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Message-Id: <20221025213008.2209006-2-iii@linux.ibm.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-02-04tests/tcg/s390x: Add div.cIlya Leoshkevich2-0/+41
Add a basic test to prevent regressions. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Message-Id: <20221101111300.2539919-1-iii@linux.ibm.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-10-28tests/tcg/s390x: Add a test for the vistr instructionThomas Huth2-0/+49
This test can be used to verify that the change in the previous commit is indeed fixing the problem with the M3 vs. M4 field mixup. Message-Id: <20221012182755.1014853-4-thuth@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: David Hildenbrand <david@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-10-27tests/tcg/s390x: Test compiler flags only once, not every timeThomas Huth1-10/+17
This is common practice, see the Makefile.target in the aarch64 folder for example. Suggested-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20221012182755.1014853-2-thuth@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: David Hildenbrand <david@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-10-06tests/tcg: clean up calls to run-testPaolo Bonzini1-1/+1
Almost all invocations of run-test have either "$* on $(TARGET_NAME)" or "$< on $(TARGET_NAME)" as the last argument. So provide a default test name, while allowing an escape hatch for custom names. As an additional simplification, remove the need to do shell quoting. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20220929114231.583801-24-alex.bennee@linaro.org>
2022-09-06target/s390x: Make translator stop before the end of a pageIlya Leoshkevich2-0/+107
Right now translator stops right *after* the end of a page, which breaks reporting of fault locations when the last instruction of a multi-insn translation block crosses a page boundary. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220817150506.592862-3-iii@linux.ibm.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-07-29tests/tcg/s390x: Test unaligned accesses to lowcoreIlya Leoshkevich2-0/+28
Add a small test to avoid regressions. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Acked-by: Richard Henderson <richard.henderson@linaro.org> Acked-by: Thomas Huth <thuth@redhat.com> Message-Id: <20220725223746.227063-3-iii@linux.ibm.com> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2022-07-19tests/tcg/s390x: test signed vfmin/vfmaxIlya Leoshkevich2-0/+418
Add a test to prevent regressions. Try all floating point value sizes and all combinations of floating point value classes. Verify the results against PoP tables, which are represented as close to the original as possible - this produces a lot of checkpatch complaints, but it seems to be justified in this case. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220713182612.3780050-4-iii@linux.ibm.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-05-23tests/tcg/s390x: Test unwinding from signal handlersIlya Leoshkevich1-14/+55
Add a small test to prevent regressions. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Message-Id: <20220503225157.1696774-3-iii@linux.ibm.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-05-04tests/tcg/s390x: Use a different PCRel32 notation in branch-relative-long.cIlya Leoshkevich1-2/+2
Binutils >=2.37 and Clang do not accept (. - 0x100000000) PCRel32 constants. While this looks like a bug that needs fixing, use a different notation (-0x100000000) as a workaround. Reported-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Message-Id: <20220502164830.1622191-1-iii@linux.ibm.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-05-04tests/tcg/s390x: Tests for Vector Enhancements Facility 2David Miller5-0/+347
Signed-off-by: David Miller <dmiller423@gmail.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: David Hildenbrand <david@redhat.com> Tested-by: Thomas Huth <thuth@redhat.com> Message-Id: <20220428094708.84835-14-david@redhat.com> [thuth: Only add test if -march=z15 is supported. Fix constraints for Clang] Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-03-16tests/tcg/s390x: Test BRASL and BRCL with large negative offsetsIlya Leoshkevich2-0/+69
Add a small test in order to prevent regressions. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Message-Id: <20220314104232.675863-4-iii@linux.ibm.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: David Hildenbrand <david@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-03-16tests/tcg: drop -cpu max from s390x sha512-mvx invocationAlex Bennée1-2/+0
With -cpu max we get a warning: qemu-s390x: warning: 'msa5-base' requires 'kimd-sha-512'. But dropping the -cpu max and it still runs fine. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20220309112248.4083619-1-alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: David Hildenbrand <david@redhat.com> Tested-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-03-07tests/tcg/s390x: Cleanup of mie3 tests.David Miller2-24/+21
Adds clobbers and merges remaining separate asm statements. Signed-off-by: David Miller <dmiller423@gmail.com> Message-Id: <20220301214305.2778-1-dmiller423@gmail.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> [thuth: dropped changes to mie3-compl.c, whitespace fixes] Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-03-07tests/tcg/s390x: Fix the exrl-trt* tests with ClangThomas Huth2-10/+6
The exrl-trt* tests use two pre-initialized variables for the results of the assembly code: uint64_t r1 = 0xffffffffffffffffull; uint64_t r2 = 0xffffffffffffffffull; But then the assembly code copies over the full contents of the register into the output variable, without taking care of this pre-initialized values: " lgr %[r1],%%r1\n" " lgr %[r2],%%r2\n" The code then finally compares the register contents to a value that apparently depends on the pre-initialized values: if (r2 != 0xffffffffffffffaaull) { write(1, "bad r2\n", 7); return 1; } This all works with GCC, since the 0xffffffffffffffff got into the r2 register there by accident, but it fails completely with Clang. Let's fix this by declaring the r1 and r2 variables as proper register variables instead, so the pre-initialized values get correctly passed into the inline assembly code. Message-Id: <20220301092431.1448419-1-thuth@redhat.com> Reviewed-by: David Hildenbrand <david@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-03-07tests/tcg/s390x: Fix mvc, mvo and pack tests with ClangThomas Huth3-5/+5
These instructions use addressing with a "base address", meaning that if register r0 is used, it is always treated as zero, no matter what value is stored in the register. So we have to make sure not to use register r0 for these instructions in our tests. There was no problem with GCC so far since it seems to always pick other registers by default, but Clang likes to chose register r0, too, so we have to use the "a" constraint to make sure that it does not pick r0 here. Message-Id: <20220301093911.1450719-1-thuth@redhat.com> Reviewed-by: David Hildenbrand <david@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Thomas Huth <thuth@redhat.com>
generated by cgit v1.1 at 2025-02-02 18:05:50 +0000