106 lines
3.7 KiB
Diff
106 lines
3.7 KiB
Diff
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From 21f7a2af2805a02a144c81f12895c134f4a171a3 Mon Sep 17 00:00:00 2001
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From: Andreas Arnez <arnez@linux.ibm.com>
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Date: Mon, 22 May 2023 19:49:08 +0200
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Subject: [PATCH 2/2] Bug 470132 - s390x: Increase test coverage for VGM
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Add more tests for the VGM instruction, to verify the fix for the VGM
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wrap-around case. Also test setting unused bits in the I2 and I3 fields,
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to check that Valgrind ignores them as it should.
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---
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none/tests/s390x/vec2.c | 44 ++++++++++++++++++++++++++++++++
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none/tests/s390x/vec2.stdout.exp | 20 +++++++++++++++
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2 files changed, 64 insertions(+)
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diff --git a/none/tests/s390x/vec2.c b/none/tests/s390x/vec2.c
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index 73b04dee4..c473a2a9a 100644
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--- a/none/tests/s390x/vec2.c
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+++ b/none/tests/s390x/vec2.c
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@@ -301,6 +301,49 @@ static void test_all_fp_int_conversions()
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#undef TEST_EXEC
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#undef TEST_GENERATE
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+/* -- Vector generate mask -- */
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+
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+#define TEST_GENERATE(insn, i2, i3, m4) \
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+ static void test_vgm_##i2##_##i3##_##m4(void) \
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+ { \
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+ ulong_v out = vec_ini; \
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+ __asm__("vgm %[out]," #i2 "," #i3 "," #m4 : [out] "+v"(out) : :); \
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+ printf("\t%016lx %016lx\n", out[0], out[1]); \
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+ }
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+
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+#define TEST_EXEC(insn, i2, i3, m4) \
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+ do { \
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+ puts(#insn " " #i2 "," #i3 "," #m4); \
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+ test_vgm_##i2##_##i3##_##m4(); \
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+ } while (0)
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+
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+#define INSNS \
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+ XTEST(vgmb, 2, 1, 0); \
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+ XTEST(vgmb, 0xf7, 0x30, 0); \
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+ XTEST(vgmb, 0, 0, 0); \
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+ XTEST(vgmh, 3, 2, 1); \
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+ XTEST(vgmh, 15, 15, 1); \
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+ XTEST(vgmf, 4, 3, 2); \
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+ XTEST(vgmf, 16, 17, 2); \
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+ XTEST(vgmg, 55, 63, 3); \
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+ XTEST(vgmg, 43, 55, 3); \
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+ XTEST(vgmg, 63, 2, 3);
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+
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+#define XTEST TEST_GENERATE
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+INSNS
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+#undef XTEST
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+
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+static void test_all_generate_mask()
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+{
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+#define XTEST TEST_EXEC
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+ INSNS
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+#undef XTEST
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+}
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+
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+#undef INSNS
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+#undef TEST_EXEC
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+#undef TEST_GENERATE
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+
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int main()
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{
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@@ -310,5 +353,6 @@ int main()
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test_all_double_bitshifts();
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test_all_int_fp_conversions();
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test_all_fp_int_conversions();
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+ test_all_generate_mask();
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return 0;
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}
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diff --git a/none/tests/s390x/vec2.stdout.exp b/none/tests/s390x/vec2.stdout.exp
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index b32cbe1bc..2c9ac21c1 100644
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--- a/none/tests/s390x/vec2.stdout.exp
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+++ b/none/tests/s390x/vec2.stdout.exp
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@@ -166,3 +166,23 @@ vcsfp 0
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vcsfp 8
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00ffffff - - -
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00000004 - - -
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+vgmb 2,1,0
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+ ffffffffffffffff ffffffffffffffff
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+vgmb 0xf7,0x30,0
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+ 8181818181818181 8181818181818181
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+vgmb 0,0,0
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+ 8080808080808080 8080808080808080
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+vgmh 3,2,1
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+ ffffffffffffffff ffffffffffffffff
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+vgmh 15,15,1
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+ 0001000100010001 0001000100010001
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+vgmf 4,3,2
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+ ffffffffffffffff ffffffffffffffff
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+vgmf 16,17,2
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+ 0000c0000000c000 0000c0000000c000
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+vgmg 55,63,3
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+ 00000000000001ff 00000000000001ff
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+vgmg 43,55,3
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+ 00000000001fff00 00000000001fff00
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+vgmg 63,2,3
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+ e000000000000001 e000000000000001
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--
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2.40.1
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