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powerpc: sstep: Add tests for addc[.] instruction

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This adds test cases for the addc[.] instruction.

Signed-off-by: Sandipan Das <sandipan@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Sandipan Das 2019-02-20 12:27:00 +05:30 committed by Michael Ellerman
parent 44dea1784b
commit 78a8da0600
2 changed files with 193 additions and 0 deletions
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1
arch/powerpc/include/asm/ppc-opcode.h
View file

@ -326,6 +326,7 @@
#define PPC_INST_ADDI 0x38000000
#define PPC_INST_ADDIS 0x3c000000
#define PPC_INST_ADD 0x7c000214
#define PPC_INST_ADDC 0x7c000014
#define PPC_INST_SUB 0x7c000050
#define PPC_INST_BLR 0x4e800020
#define PPC_INST_BLRL 0x4e800021

192
arch/powerpc/lib/test_emulate_step.c
View file

@ -53,6 +53,10 @@
___PPC_RA(a) | ___PPC_RB(b))
#define TEST_ADD_DOT(t, a, b) (PPC_INST_ADD | ___PPC_RT(t) | \
___PPC_RA(a) | ___PPC_RB(b) | 0x1)
#define TEST_ADDC(t, a, b) (PPC_INST_ADDC | ___PPC_RT(t) | \
___PPC_RA(a) | ___PPC_RB(b))
#define TEST_ADDC_DOT(t, a, b) (PPC_INST_ADDC | ___PPC_RT(t) | \
___PPC_RA(a) | ___PPC_RB(b) | 0x1)
#define MAX_SUBTESTS 16
@ -649,6 +653,194 @@ static struct compute_test compute_tests[] = {
}
}
}
},
{
.mnemonic = "addc",
.subtests = {
{
.descr = "RA = LONG_MIN, RB = LONG_MIN",
.instr = TEST_ADDC(20, 21, 22),
.regs = {
.gpr[21] = LONG_MIN,
.gpr[22] = LONG_MIN,
}
},
{
.descr = "RA = LONG_MIN, RB = LONG_MAX",
.instr = TEST_ADDC(20, 21, 22),
.regs = {
.gpr[21] = LONG_MIN,
.gpr[22] = LONG_MAX,
}
},
{
.descr = "RA = LONG_MAX, RB = LONG_MAX",
.instr = TEST_ADDC(20, 21, 22),
.regs = {
.gpr[21] = LONG_MAX,
.gpr[22] = LONG_MAX,
}
},
{
.descr = "RA = ULONG_MAX, RB = ULONG_MAX",
.instr = TEST_ADDC(20, 21, 22),
.regs = {
.gpr[21] = ULONG_MAX,
.gpr[22] = ULONG_MAX,
}
},
{
.descr = "RA = ULONG_MAX, RB = 0x1",
.instr = TEST_ADDC(20, 21, 22),
.regs = {
.gpr[21] = ULONG_MAX,
.gpr[22] = 0x1,
}
},
{
.descr = "RA = INT_MIN, RB = INT_MIN",
.instr = TEST_ADDC(20, 21, 22),
.regs = {
.gpr[21] = INT_MIN,
.gpr[22] = INT_MIN,
}
},
{
.descr = "RA = INT_MIN, RB = INT_MAX",
.instr = TEST_ADDC(20, 21, 22),
.regs = {
.gpr[21] = INT_MIN,
.gpr[22] = INT_MAX,
}
},
{
.descr = "RA = INT_MAX, RB = INT_MAX",
.instr = TEST_ADDC(20, 21, 22),
.regs = {
.gpr[21] = INT_MAX,
.gpr[22] = INT_MAX,
}
},
{
.descr = "RA = UINT_MAX, RB = UINT_MAX",
.instr = TEST_ADDC(20, 21, 22),
.regs = {
.gpr[21] = UINT_MAX,
.gpr[22] = UINT_MAX,
}
},
{
.descr = "RA = UINT_MAX, RB = 0x1",
.instr = TEST_ADDC(20, 21, 22),
.regs = {
.gpr[21] = UINT_MAX,
.gpr[22] = 0x1,
}
},
{
.descr = "RA = LONG_MIN | INT_MIN, RB = LONG_MIN | INT_MIN",
.instr = TEST_ADDC(20, 21, 22),
.regs = {
.gpr[21] = LONG_MIN | (uint)INT_MIN,
.gpr[22] = LONG_MIN | (uint)INT_MIN,
}
}
}
},
{
.mnemonic = "addc.",
.subtests = {
{
.descr = "RA = LONG_MIN, RB = LONG_MIN",
.flags = IGNORE_CCR,
.instr = TEST_ADDC_DOT(20, 21, 22),
.regs = {
.gpr[21] = LONG_MIN,
.gpr[22] = LONG_MIN,
}
},
{
.descr = "RA = LONG_MIN, RB = LONG_MAX",
.instr = TEST_ADDC_DOT(20, 21, 22),
.regs = {
.gpr[21] = LONG_MIN,
.gpr[22] = LONG_MAX,
}
},
{
.descr = "RA = LONG_MAX, RB = LONG_MAX",
.flags = IGNORE_CCR,
.instr = TEST_ADDC_DOT(20, 21, 22),
.regs = {
.gpr[21] = LONG_MAX,
.gpr[22] = LONG_MAX,
}
},
{
.descr = "RA = ULONG_MAX, RB = ULONG_MAX",
.instr = TEST_ADDC_DOT(20, 21, 22),
.regs = {
.gpr[21] = ULONG_MAX,
.gpr[22] = ULONG_MAX,
}
},
{
.descr = "RA = ULONG_MAX, RB = 0x1",
.instr = TEST_ADDC_DOT(20, 21, 22),
.regs = {
.gpr[21] = ULONG_MAX,
.gpr[22] = 0x1,
}
},
{
.descr = "RA = INT_MIN, RB = INT_MIN",
.instr = TEST_ADDC_DOT(20, 21, 22),
.regs = {
.gpr[21] = INT_MIN,
.gpr[22] = INT_MIN,
}
},
{
.descr = "RA = INT_MIN, RB = INT_MAX",
.instr = TEST_ADDC_DOT(20, 21, 22),
.regs = {
.gpr[21] = INT_MIN,
.gpr[22] = INT_MAX,
}
},
{
.descr = "RA = INT_MAX, RB = INT_MAX",
.instr = TEST_ADDC_DOT(20, 21, 22),
.regs = {
.gpr[21] = INT_MAX,
.gpr[22] = INT_MAX,
}
},
{
.descr = "RA = UINT_MAX, RB = UINT_MAX",
.instr = TEST_ADDC_DOT(20, 21, 22),
.regs = {
.gpr[21] = UINT_MAX,
.gpr[22] = UINT_MAX,
}
},
{
.descr = "RA = UINT_MAX, RB = 0x1",
.instr = TEST_ADDC_DOT(20, 21, 22),
.regs = {
.gpr[21] = UINT_MAX,
.gpr[22] = 0x1,
}
},
{
.descr = "RA = LONG_MIN | INT_MIN, RB = LONG_MIN | INT_MIN",
.instr = TEST_ADDC_DOT(20, 21, 22),
.regs = {
.gpr[21] = LONG_MIN | (uint)INT_MIN,
.gpr[22] = LONG_MIN | (uint)INT_MIN,
}
}
}
}
};