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[X86] Disable _mm512_maskz_set1_epi64 intrinsic on 32-bit targets to prevent a backend isel failure. 

The __builtin_ia32_pbroadcastq512_mem_mask we were previously trying to use in 32-bit mode is not implemented in the x86 backend and causes isel to fail in release builds. In debug builds it fails even earlier during legalization with an llvm_unreachable.

While there add the missing test case for this intrinsic for this for 64-bit mode.

This fixes PR34631. D37668 should be able to recover this for 32-bit mode soon. But I wanted to fix the crash ahead of that.

llvm-svn: 313392
This commit is contained in:
Craig Topper 2017-09-15 20:27:59 +00:00
parent d13d61fdb4
commit 04370d3a82
3 changed files with 9 additions and 8 deletions
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1
clang/include/clang/Basic/BuiltinsX86.def
View File

@ -974,7 +974,6 @@ TARGET_BUILTIN(__builtin_ia32_pmuludq512, "V8LLiV16iV16i", "", "avx512f")
TARGET_BUILTIN(__builtin_ia32_ptestmd512, "UsV16iV16iUs", "", "avx512f")
TARGET_BUILTIN(__builtin_ia32_ptestmq512, "UcV8LLiV8LLiUc", "", "avx512f")
TARGET_BUILTIN(__builtin_ia32_pbroadcastd512_gpr_mask, "V16iiV16iUs", "", "avx512f")
TARGET_BUILTIN(__builtin_ia32_pbroadcastq512_mem_mask, "V8LLiLLiV8LLiUc", "", "avx512f")
TARGET_BUILTIN(__builtin_ia32_loaddqusi512_mask, "V16iiC*V16iUs", "", "avx512f")
TARGET_BUILTIN(__builtin_ia32_loaddqudi512_mask, "V8LLiLLiC*V8LLiUc", "", "avx512f")
TARGET_BUILTIN(__builtin_ia32_loadups512_mask, "V16ffC*V16fUs", "", "avx512f")

9
clang/lib/Headers/avx512fintrin.h
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@ -267,21 +267,16 @@ _mm512_maskz_set1_epi32(__mmask16 __M, int __A)
__M);
}
#ifdef __x86_64__
static __inline __m512i __DEFAULT_FN_ATTRS
_mm512_maskz_set1_epi64(__mmask8 __M, long long __A)
{
#ifdef __x86_64__
return (__m512i) __builtin_ia32_pbroadcastq512_gpr_mask (__A,
(__v8di)
_mm512_setzero_si512 (),
__M);
#else
return (__m512i) __builtin_ia32_pbroadcastq512_mem_mask (__A,
(__v8di)
_mm512_setzero_si512 (),
__M);
#endif
}
#endif
static __inline __m512 __DEFAULT_FN_ATTRS
_mm512_setzero_ps(void)

7
clang/test/CodeGen/avx512f-builtins.c
View File

@ -7935,6 +7935,13 @@ __m512i test_mm512_mask_set1_epi64 (__m512i __O, __mmask8 __M, long long __A)
//CHECK: @llvm.x86.avx512.mask.pbroadcast.q.gpr.512
return _mm512_mask_set1_epi64 (__O, __M, __A);
}
__m512i test_mm512_maskz_set1_epi64 (__mmask8 __M, long long __A)
{
//CHECK-LABEL: @test_mm512_maskz_set1_epi64
//CHECK: @llvm.x86.avx512.mask.pbroadcast.q.gpr.512
return _mm512_maskz_set1_epi64 (__M, __A);
}
#endif
__m512i test_mm512_set_epi64 (long long __A, long long __B, long long __C,