From: Fredrik Noring <nor...@nocrew.org>
Test R5900 three-operand MADDU1.
Reviewed-by: Aleksandar Markovic <amarko...@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarko...@wavecomp.com>
Signed-off-by: Fredrik Noring <nor...@nocrew.org>
---
tests/tcg/mips/mipsr5900/maddu.c | 37 +++++++++++++++++++++++++++++++++++--
1 file changed, 35 insertions(+), 2 deletions(-)
diff --git a/tests/tcg/mips/mipsr5900/maddu.c b/tests/tcg/mips/mipsr5900/maddu.c
index e4e5521..30936fb 100644
--- a/tests/tcg/mips/mipsr5900/maddu.c
+++ b/tests/tcg/mips/mipsr5900/maddu.c
@@ -1,5 +1,5 @@
/*
- * Test R5900-specific three-operand MADDU.
+ * Test R5900-specific three-operand MADDU and MADDU1.
*/
#include <stdio.h>
@@ -29,9 +29,42 @@ uint64_t maddu(uint64_t a, uint32_t rs, uint32_t rt)
return r;
}
+uint64_t maddu1(uint64_t a, uint32_t rs, uint32_t rt)
+{
+ uint32_t lo = a;
+ uint32_t hi = a >> 32;
+ uint32_t rd;
+ uint64_t r;
+
+ __asm__ __volatile__ (
+ " mtlo1 %5\n"
+ " mthi1 %6\n"
+ " maddu1 %0, %3, %4\n"
+ " mflo1 %1\n"
+ " mfhi1 %2\n"
+ : "=r" (rd), "=r" (lo), "=r" (hi)
+ : "r" (rs), "r" (rt), "r" (lo), "r" (hi));
+ r = ((uint64_t)hi << 32) | (uint32_t)lo;
+
+ assert(a + (uint64_t)rs * rt == r);
+ assert(rd == lo);
+
+ return r;
+}
+
+static int64_t maddu_variants(int64_t a, int32_t rs, int32_t rt)
+{
+ int64_t rd = maddu(a, rs, rt);
+ int64_t rd1 = maddu1(a, rs, rt);
+
+ assert(rd == rd1);
+
+ return rd;
+}
+
int main()
{
- assert(maddu(13, 17, 19) == 336);
+ assert(maddu_variants(13, 17, 19) == 336);
return 0;
}
--
2.7.4
