Workaround for a bug in AMD 18.6.1 driver

SChernykh · SChernykh · commit 561a7231f890 · 2019-08-11T17:19:21.000+02:00
diff --git a/RandomX_OpenCL/CL/randomx_init.cl b/RandomX_OpenCL/CL/randomx_init.cl
@@ -1329,8 +1329,11 @@ __global uint* generate_jit_code(__global uint2* e, __global uint2* p0, __global
 			{
 				if (pass == 0)
 				{
+					// Workaround for a bug in AMD 18.6.1 driver
+					volatile uint dstAvailableAt2 = dstAvailableAt;
+
 					// Mark branch target
-					e[dstAvailableAt].x |= (0x20 << 8);
+					e[dstAvailableAt2].x |= (0x20 << 8);
 
 					// Mark branch
 					e[i].x |= (0x40 << 8);

Original file line number	Diff line number	Diff line change
`@@ -1329,8 +1329,11 @@ __global uint* generate_jit_code(__global uint2* e, __global uint2* p0, __global`
`1329`	`1329`	`{`
`1330`	`1330`	`if (pass == 0)`
`1331`	`1331`	`{`
	`1332`	`+ // Workaround for a bug in AMD 18.6.1 driver`
	`1333`	`+ volatile uint dstAvailableAt2 = dstAvailableAt;`
	`1334`	`+`
`1332`	`1335`	`// Mark branch target`
`1333`		`- e[dstAvailableAt].x \|= (0x20 << 8);`
	`1336`	`+ e[dstAvailableAt2].x \|= (0x20 << 8);`
`1334`	`1337`
`1335`	`1338`	`// Mark branch`
`1336`	`1339`	`e[i].x \|= (0x40 << 8);`