diff options
author | Fredrik Noring <noring@nocrew.org> | 2018-12-27 21:23:52 +0100 |
---|---|---|
committer | Aleksandar Markovic <amarkovic@wavecomp.com> | 2019-01-03 17:52:52 +0100 |
commit | 50f299da629b4c2269c17af75a2659641a763d0d (patch) | |
tree | 878d987880640c5bc434066bc87c3c82a4e67d32 /tests/tcg | |
parent | 779bdf417db0dfa2409ede4561db11752bdfc452 (diff) |
tests/tcg: mips: Test R5900 three-operand MADD
Test R5900 three-operand MADD.
Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Fredrik Noring <noring@nocrew.org>
Diffstat (limited to 'tests/tcg')
-rw-r--r-- | tests/tcg/mips/mipsr5900/Makefile | 1 | ||||
-rw-r--r-- | tests/tcg/mips/mipsr5900/madd.c | 45 |
2 files changed, 46 insertions, 0 deletions
diff --git a/tests/tcg/mips/mipsr5900/Makefile b/tests/tcg/mips/mipsr5900/Makefile index a1c388bc3c..97ca2a671c 100644 --- a/tests/tcg/mips/mipsr5900/Makefile +++ b/tests/tcg/mips/mipsr5900/Makefile @@ -10,6 +10,7 @@ CFLAGS = -Wall -mabi=32 -march=r5900 -static TESTCASES = div1.tst TESTCASES += divu1.tst +TESTCASES += madd.tst TESTCASES += mflohi1.tst TESTCASES += mtlohi1.tst TESTCASES += mult.tst diff --git a/tests/tcg/mips/mipsr5900/madd.c b/tests/tcg/mips/mipsr5900/madd.c new file mode 100644 index 0000000000..9ad2ea6dbb --- /dev/null +++ b/tests/tcg/mips/mipsr5900/madd.c @@ -0,0 +1,45 @@ +/* + * Test R5900-specific three-operand MADD. + */ + +#include <stdio.h> +#include <inttypes.h> +#include <assert.h> + +int64_t madd(int64_t a, int32_t rs, int32_t rt) +{ + int32_t lo = a; + int32_t hi = a >> 32; + int32_t rd; + int64_t r; + + __asm__ __volatile__ ( + " mtlo %5\n" + " mthi %6\n" + " madd %0, %3, %4\n" + " mflo %1\n" + " mfhi %2\n" + : "=r" (rd), "=r" (lo), "=r" (hi) + : "r" (rs), "r" (rt), "r" (lo), "r" (hi)); + r = ((int64_t)hi << 32) | (uint32_t)lo; + + assert(a + (int64_t)rs * rt == r); + assert(rd == lo); + + return r; +} + +static void verify_madd(int64_t a, int32_t rs, int32_t rt, int64_t expected) +{ + assert(madd(a, rs, rt) == expected); + assert(madd(a, -rs, rt) == a + a - expected); + assert(madd(a, rs, -rt) == a + a - expected); + assert(madd(a, -rs, -rt) == expected); +} + +int main() +{ + verify_madd(13, 17, 19, 336); + + return 0; +} |