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[X86] Make __builtin_ia32_vec_ext_v2si require ICE for its index argument. Add warnings for out of range indices for __builtin_ia32_vec_ext_v2si, __builtin_ia32_vec_ext_v4hi, and __builtin_ia32_vec_set_v4hi. 

These should take a constant value for an index and that constant should be a valid element number.

llvm-svn: 334051
This commit is contained in:
Craig Topper 2018-06-05 21:54:35 +00:00
parent c4c6b548c5
commit 11899b04a4
2 changed files with 8 additions and 1 deletions
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2
clang/include/clang/Basic/BuiltinsX86.def
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@ -142,7 +142,7 @@ TARGET_BUILTIN(__builtin_ia32_movntq, "vV1LLi*V1LLi", "n", "mmx")
TARGET_BUILTIN(__builtin_ia32_vec_init_v2si, "V2iii", "nc", "mmx")
TARGET_BUILTIN(__builtin_ia32_vec_init_v4hi, "V4sssss", "nc", "mmx")
TARGET_BUILTIN(__builtin_ia32_vec_init_v8qi, "V8ccccccccc", "nc", "mmx")
TARGET_BUILTIN(__builtin_ia32_vec_ext_v2si, "iV2ii", "nc", "mmx")
TARGET_BUILTIN(__builtin_ia32_vec_ext_v2si, "iV2iIi", "nc", "mmx")
// MMX2 (MMX+SSE) intrinsics
TARGET_BUILTIN(__builtin_ia32_cvtpi2ps, "V4fV4fV2i", "nc", "mmx,sse")

7
clang/lib/Sema/SemaChecking.cpp
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@ -2555,7 +2555,14 @@ bool Sema::CheckX86BuiltinFunctionCall(unsigned BuiltinID, CallExpr *TheCall) {
case X86::BI_mm_prefetch:
i = 1; l = 0; u = 7;
break;
case X86::BI__builtin_ia32_vec_ext_v2si:
i = 1; l = 0; u = 1;
break;
case X86::BI__builtin_ia32_vec_ext_v4hi:
i = 1; l = 0; u = 3;
break;
case X86::BI__builtin_ia32_sha1rnds4:
case X86::BI__builtin_ia32_vec_set_v4hi:
i = 2; l = 0; u = 3;
break;
case X86::BI__builtin_ia32_vpermil2pd: