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| author | Jan Beulich <jbeulich@suse.com> | 2024-10-08 16:05:33 +0200 |
|---|---|---|
| committer | Jan Beulich <jbeulich@suse.com> | 2024-10-08 16:05:33 +0200 |
| commit | 0ab66f099bf0f405542944c5ce178151bea934b2 (patch) | |
| tree | a0a6c5d44c163dce97119f2375fac5ce7bba7c1e | |
| parent | c94adf02d31028a25bb7b20ec77aade9d502430b (diff) | |
| download | gcc-0ab66f099bf0f405542944c5ce178151bea934b2.zip gcc-0ab66f099bf0f405542944c5ce178151bea934b2.tar.gz gcc-0ab66f099bf0f405542944c5ce178151bea934b2.tar.bz2 | |
x86/{,V}AES: adjust when to force EVEX encoding
Commit a79d13a01f8c ("i386: Fix aes/vaes patterns [PR114576]") correctly
said "..., but we need to emit {evex} prefix in the assembly if AES ISA
is not enabled". Yet it did so only for the TARGET_AES insns. Going from
the alternative chosen in the TARGET_VAES insns isn't quite right: If
AES is (also) enabled, EVEX encoding would needlessly be forced.
gcc/
* config/i386/sse.md (vaesdec_<mode>, vaesdeclast_<mode>,
vaesenc_<mode>, vaesenclast_<mode>): Replace which_alternative
check by TARGET_AES one.
| -rw-r--r-- | gcc/config/i386/sse.md | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/gcc/config/i386/sse.md b/gcc/config/i386/sse.md index d6e2135..ccef3e0 100644 --- a/gcc/config/i386/sse.md +++ b/gcc/config/i386/sse.md @@ -30803,7 +30803,7 @@ UNSPEC_VAESDEC))] "TARGET_VAES" { - if (which_alternative == 0 && <MODE>mode == V16QImode) + if (!TARGET_AES && <MODE>mode == V16QImode) return "%{evex%} vaesdec\t{%2, %1, %0|%0, %1, %2}"; else return "vaesdec\t{%2, %1, %0|%0, %1, %2}"; @@ -30817,7 +30817,7 @@ UNSPEC_VAESDECLAST))] "TARGET_VAES" { - if (which_alternative == 0 && <MODE>mode == V16QImode) + if (!TARGET_AES && <MODE>mode == V16QImode) return "%{evex%} vaesdeclast\t{%2, %1, %0|%0, %1, %2}"; else return "vaesdeclast\t{%2, %1, %0|%0, %1, %2}"; @@ -30831,7 +30831,7 @@ UNSPEC_VAESENC))] "TARGET_VAES" { - if (which_alternative == 0 && <MODE>mode == V16QImode) + if (!TARGET_AES && <MODE>mode == V16QImode) return "%{evex%} vaesenc\t{%2, %1, %0|%0, %1, %2}"; else return "vaesenc\t{%2, %1, %0|%0, %1, %2}"; @@ -30845,7 +30845,7 @@ UNSPEC_VAESENCLAST))] "TARGET_VAES" { - if (which_alternative == 0 && <MODE>mode == V16QImode) + if (!TARGET_AES && <MODE>mode == V16QImode) return "%{evex%} vaesenclast\t{%2, %1, %0|%0, %1, %2}"; else return "vaesenclast\t{%2, %1, %0|%0, %1, %2}"; |