Hi!
While the documentation only mentions AES resp. PCLMUL CPUIDs for these
intrinsics, they use and return V2DImode vectors and V2DImode is
only in VALID_SSE2_REG_MODE and VALID_AVX512VL_128_REG_MODE, so without
-msse2 we can't create registers with that mode.
Fixed thusly, bootstrapped/regtested on x86_64-linux and i686-linux, ok for
trunk? This isn't really backportable to older branches, unless
r256281 is backported too.
2018-02-12 Jakub Jelinek <ja...@redhat.com>
PR target/84335
* config/i386/i386.c (ix86_init_mmx_sse_builtins): Pass
OPTION_MASK_ISA_AES | OPTION_MASK_ISA_SSE2 instead of
OPTION_MASK_ISA_AES as first argument to def_builtin_const
for AES builtins. Pass OPTION_MASK_ISA_PCLMUL | OPTION_MASK_ISA_SSE2
instead of OPTION_MASK_ISA_PCLMUL as first argument to
def_builtin_const for __builtin_ia32_pclmulqdq128 builtin.
* config/i386/wmmintrin.h: If __SSE2__ is not defined, enable it
temporarily for AES and PCLMUL builtins.
* gcc.target/i386/pr84335.c: New test.
--- gcc/config/i386/i386.c.jj 2018-02-09 06:44:38.737804246 +0100
+++ gcc/config/i386/i386.c 2018-02-12 16:29:11.731233919 +0100
@@ -31282,21 +31282,28 @@ ix86_init_mmx_sse_builtins (void)
VOID_FTYPE_UNSIGNED_UNSIGNED, IX86_BUILTIN_MWAIT);
/* AES */
- def_builtin_const (OPTION_MASK_ISA_AES, "__builtin_ia32_aesenc128",
+ def_builtin_const (OPTION_MASK_ISA_AES | OPTION_MASK_ISA_SSE2,
+ "__builtin_ia32_aesenc128",
V2DI_FTYPE_V2DI_V2DI, IX86_BUILTIN_AESENC128);
- def_builtin_const (OPTION_MASK_ISA_AES, "__builtin_ia32_aesenclast128",
+ def_builtin_const (OPTION_MASK_ISA_AES | OPTION_MASK_ISA_SSE2,
+ "__builtin_ia32_aesenclast128",
V2DI_FTYPE_V2DI_V2DI, IX86_BUILTIN_AESENCLAST128);
- def_builtin_const (OPTION_MASK_ISA_AES, "__builtin_ia32_aesdec128",
+ def_builtin_const (OPTION_MASK_ISA_AES | OPTION_MASK_ISA_SSE2,
+ "__builtin_ia32_aesdec128",
V2DI_FTYPE_V2DI_V2DI, IX86_BUILTIN_AESDEC128);
- def_builtin_const (OPTION_MASK_ISA_AES, "__builtin_ia32_aesdeclast128",
+ def_builtin_const (OPTION_MASK_ISA_AES | OPTION_MASK_ISA_SSE2,
+ "__builtin_ia32_aesdeclast128",
V2DI_FTYPE_V2DI_V2DI, IX86_BUILTIN_AESDECLAST128);
- def_builtin_const (OPTION_MASK_ISA_AES, "__builtin_ia32_aesimc128",
+ def_builtin_const (OPTION_MASK_ISA_AES | OPTION_MASK_ISA_SSE2,
+ "__builtin_ia32_aesimc128",
V2DI_FTYPE_V2DI, IX86_BUILTIN_AESIMC128);
- def_builtin_const (OPTION_MASK_ISA_AES, "__builtin_ia32_aeskeygenassist128",
+ def_builtin_const (OPTION_MASK_ISA_AES | OPTION_MASK_ISA_SSE2,
+ "__builtin_ia32_aeskeygenassist128",
V2DI_FTYPE_V2DI_INT, IX86_BUILTIN_AESKEYGENASSIST128);
/* PCLMUL */
- def_builtin_const (OPTION_MASK_ISA_PCLMUL, "__builtin_ia32_pclmulqdq128",
+ def_builtin_const (OPTION_MASK_ISA_PCLMUL | OPTION_MASK_ISA_SSE2,
+ "__builtin_ia32_pclmulqdq128",
V2DI_FTYPE_V2DI_V2DI_INT, IX86_BUILTIN_PCLMULQDQ128);
/* RDRND */
--- gcc/config/i386/wmmintrin.h.jj 2018-01-03 10:20:05.953535684 +0100
+++ gcc/config/i386/wmmintrin.h 2018-02-12 16:25:32.526060590 +0100
@@ -32,9 +32,9 @@
/* AES */
-#ifndef __AES__
+#if !defined(__AES__) || !defined(__SSE2__)
#pragma GCC push_options
-#pragma GCC target("aes")
+#pragma GCC target("aes,sse2")
#define __DISABLE_AES__
#endif /* __AES__ */
@@ -101,9 +101,9 @@ _mm_aeskeygenassist_si128 (__m128i __X,
/* PCLMUL */
-#ifndef __PCLMUL__
+#if !defined(__PCLMUL__) || !defined(__SSE2__)
#pragma GCC push_options
-#pragma GCC target("pclmul")
+#pragma GCC target("pclmul,sse2")
#define __DISABLE_PCLMUL__
#endif /* __PCLMUL__ */
--- gcc/testsuite/gcc.target/i386/pr84335.c.jj 2018-02-12 16:37:55.304353911
+0100
+++ gcc/testsuite/gcc.target/i386/pr84335.c 2018-02-12 16:37:33.230351025
+0100
@@ -0,0 +1,10 @@
+/* PR target/84335 */
+/* { dg-do compile } */
+/* { dg-options "-O2 -maes -mno-sse2" } */
+typedef long long V __attribute__ ((__vector_size__ (16)));
+
+V
+foo (V *a, V *b)
+{
+ return __builtin_ia32_aesenc128 (*a, *b); /* { dg-error "needs isa
option" } */
+}
Jakub
