Add test for exp and log (gc2000)
diff --git a/src/etnaviv_verifyops.c b/src/etnaviv_verifyops.c
index e5a511c..022fc4e 100644
--- a/src/etnaviv_verifyops.c
+++ b/src/etnaviv_verifyops.c
@@ -226,6 +226,20 @@
}
}
+/* Generate values for testing logarithm.
+ (positive, integral)
+ */
+void f32_generate_values_h_log(size_t seed, void *a, size_t width)
+{
+ float base = seed * width;
+ for (size_t x=0; x<width; ++x) {
+ ((float*)a)[x*4+0] = base + x;
+ ((uint32_t*)a)[x*4+1] = 0x51515151; /* fill other vector elements with recognizable random pattern */
+ ((uint32_t*)a)[x*4+2] = 0x15151515;
+ ((uint32_t*)a)[x*4+3] = 0x36363636;
+ }
+}
+
/** CPU-side helper emulation functions */
/* Float to integer conversion emulation for GC2000. There is a significant
@@ -367,6 +381,8 @@
/* float */
CPU_COMPUTE_FUNC1_MULTI(addf32_compute_cpu, float, AI(i) + BI(i));
CPU_COMPUTE_FUNC1_MULTI(mulf32_compute_cpu, float, AI(i) * BI(i));
+CPU_COMPUTE_FUNC1_BCAST(expf32_compute_cpu, float, exp2f(A));
+CPU_COMPUTE_FUNC1_BCAST(logf32_compute_cpu, float, log2f(A));
/* conversion between float and int (GC2000) */
CPU_COMPUTE_FUNC1_CVT_BCAST(f2i_s32_compute_cpu, int32_t, float, f2i_s32_gc2000(A));
CPU_COMPUTE_FUNC1_CVT_BCAST(f2i_u32_compute_cpu, uint32_t, float, f2i_u32_gc2000(A));
@@ -573,6 +589,19 @@
0x07841001, 0x39002800, 0x00000000, 0x00390038, /* add t4, t2, void, t3 */
}))
},
+ {"exp.f32", HWT_ALL, CT_FLOAT32, i32_generate_values_h, NULL, (void*)expf32_compute_cpu,
+ GPU_CODE(((uint32_t[]){
+ 0x07841011, 0x00000000, 0x00000000, 0x00390028, /* exp t4, void, void, t2 */
+ }))
+ },
+ /* currently only testing logarithm for positive numbers,
+ TODO: check how negative/invalid values are handled.
+ */
+ {"log.f32", HWT_ALL, CT_FLOAT32, f32_generate_values_h_log, NULL, (void*)logf32_compute_cpu,
+ GPU_CODE(((uint32_t[]){
+ 0x07841012, 0x00000000, 0x00000000, 0x00390028, /* log t4, void, void, t2 */
+ }))
+ },
};
/* Compare 32-bit floating point values.
