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| From: | Richard Henderson |
| Subject: | Re: [Qemu-devel] [PATCH v2] target/s390x: Add support for the TEST BLOCK instruction |
| Date: | Thu, 18 May 2017 08:42:27 -0700 |
| User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.1.0 |
On 05/18/2017 06:20 AM, Aurelien Jarno wrote:
+DEF_HELPER_FLAGS_2(testblock, TCG_CALL_NO_WG, i32, env, i64)As the helper does not read any values from the global, you can even use TCG_CALL_NO_RWG.
By throwing an exception, we imply a read of all values along the exception path. r~
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