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[X86] Add range checking to the immediate arguments of many of the SSE/AVX builtins. 

llvm-svn: 227674
This commit is contained in:
Craig Topper 2015-01-31 06:31:23 +00:00
parent 9fd41316ad
commit 1601525f1c
3 changed files with 35 additions and 15 deletions
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32
clang/lib/Sema/SemaChecking.cpp
View File

@ -878,12 +878,18 @@ bool Sema::CheckX86BuiltinFunctionCall(unsigned BuiltinID, CallExpr *TheCall) {
switch (BuiltinID) {
default: return false;
case X86::BI_mm_prefetch: i = 1; l = 0; u = 3; break;
case X86::BI__builtin_ia32_cmpps:
case X86::BI__builtin_ia32_cmpss:
case X86::BI__builtin_ia32_cmppd:
case X86::BI__builtin_ia32_cmpsd:
case X86::BI__builtin_ia32_cmpps512_mask:
case X86::BI__builtin_ia32_cmppd512_mask: i = 2; l = 0; u = 31; break;
case X86::BI__builtin_ia32_vextractf128_pd256:
case X86::BI__builtin_ia32_vextractf128_ps256:
case X86::BI__builtin_ia32_vextractf128_si256:
case X86::BI__builtin_ia32_extract128i256: i = 1, l = 0, u = 1; break;
case X86::BI__builtin_ia32_vinsertf128_pd256:
case X86::BI__builtin_ia32_vinsertf128_ps256:
case X86::BI__builtin_ia32_vinsertf128_si256:
case X86::BI__builtin_ia32_insert128i256:
case X86::BI__builtin_ia32_blendpd: i = 2, l = 0; u = 1; break;
case X86::BI__builtin_ia32_blendps:
case X86::BI__builtin_ia32_blendpd256:
case X86::BI__builtin_ia32_sha1rnds4: i = 2, l = 0; u = 3; break;
case X86::BI__builtin_ia32_cmpb128_mask:
case X86::BI__builtin_ia32_cmpw128_mask:
case X86::BI__builtin_ia32_cmpd128_mask:
@ -908,6 +914,20 @@ bool Sema::CheckX86BuiltinFunctionCall(unsigned BuiltinID, CallExpr *TheCall) {
case X86::BI__builtin_ia32_ucmpw512_mask:
case X86::BI__builtin_ia32_ucmpd512_mask:
case X86::BI__builtin_ia32_ucmpq512_mask: i = 2; l = 0; u = 7; break;
case X86::BI__builtin_ia32_roundps:
case X86::BI__builtin_ia32_roundpd:
case X86::BI__builtin_ia32_roundps256:
case X86::BI__builtin_ia32_roundpd256: i = 1, l = 0; u = 15; break;
case X86::BI__builtin_ia32_roundss:
case X86::BI__builtin_ia32_roundsd: i = 2, l = 0; u = 15; break;
case X86::BI__builtin_ia32_cmpps:
case X86::BI__builtin_ia32_cmpss:
case X86::BI__builtin_ia32_cmppd:
case X86::BI__builtin_ia32_cmpsd:
case X86::BI__builtin_ia32_cmpps256:
case X86::BI__builtin_ia32_cmppd256:
case X86::BI__builtin_ia32_cmpps512_mask:
case X86::BI__builtin_ia32_cmppd512_mask: i = 2; l = 0; u = 31; break;
}
return SemaBuiltinConstantArgRange(TheCall, i, l, u);
}

16
clang/test/CodeGen/builtins-x86.c
View File

@ -403,16 +403,16 @@ void f0() {
tmp_V4f = __builtin_ia32_vpermilvarps(tmp_V4f, tmp_V4i);
tmp_V4d = __builtin_ia32_vpermilvarpd256(tmp_V4d, tmp_V4LLi);
tmp_V8f = __builtin_ia32_vpermilvarps256(tmp_V8f, tmp_V8i);
tmp_V4d = __builtin_ia32_blendpd256(tmp_V4d, tmp_V4d, 0x7);
tmp_V4d = __builtin_ia32_blendpd256(tmp_V4d, tmp_V4d, 0x1);
tmp_V8f = __builtin_ia32_blendps256(tmp_V8f, tmp_V8f, 0x7);
tmp_V4d = __builtin_ia32_blendvpd256(tmp_V4d, tmp_V4d, tmp_V4d);
tmp_V8f = __builtin_ia32_blendvps256(tmp_V8f, tmp_V8f, tmp_V8f);
tmp_V8f = __builtin_ia32_dpps256(tmp_V8f, tmp_V8f, 0x7);
tmp_V4d = __builtin_ia32_cmppd256(tmp_V4d, tmp_V4d, 0);
tmp_V8f = __builtin_ia32_cmpps256(tmp_V8f, tmp_V8f, 0);
tmp_V2d = __builtin_ia32_vextractf128_pd256(tmp_V4d, 0x7);
tmp_V4f = __builtin_ia32_vextractf128_ps256(tmp_V8f, 0x7);
tmp_V4i = __builtin_ia32_vextractf128_si256(tmp_V8i, 0x7);
tmp_V2d = __builtin_ia32_vextractf128_pd256(tmp_V4d, 0x1);
tmp_V4f = __builtin_ia32_vextractf128_ps256(tmp_V8f, 0x1);
tmp_V4i = __builtin_ia32_vextractf128_si256(tmp_V8i, 0x1);
tmp_V4d = __builtin_ia32_cvtdq2pd256(tmp_V4i);
tmp_V8f = __builtin_ia32_cvtdq2ps256(tmp_V8i);
tmp_V4f = __builtin_ia32_cvtpd2ps256(tmp_V4d);
@ -424,9 +424,9 @@ void f0() {
tmp_V4d = __builtin_ia32_vperm2f128_pd256(tmp_V4d, tmp_V4d, 0x7);
tmp_V8f = __builtin_ia32_vperm2f128_ps256(tmp_V8f, tmp_V8f, 0x7);
tmp_V8i = __builtin_ia32_vperm2f128_si256(tmp_V8i, tmp_V8i, 0x7);
tmp_V4d = __builtin_ia32_vinsertf128_pd256(tmp_V4d, tmp_V2d, 0x7);
tmp_V8f = __builtin_ia32_vinsertf128_ps256(tmp_V8f, tmp_V4f, 0x7);
tmp_V8i = __builtin_ia32_vinsertf128_si256(tmp_V8i, tmp_V4i, 0x7);
tmp_V4d = __builtin_ia32_vinsertf128_pd256(tmp_V4d, tmp_V2d, 0x1);
tmp_V8f = __builtin_ia32_vinsertf128_ps256(tmp_V8f, tmp_V4f, 0x1);
tmp_V8i = __builtin_ia32_vinsertf128_si256(tmp_V8i, tmp_V4i, 0x1);
tmp_V4d = __builtin_ia32_sqrtpd256(tmp_V4d);
tmp_V8f = __builtin_ia32_sqrtps256(tmp_V8f);
tmp_V8f = __builtin_ia32_rsqrtps256(tmp_V8f);
@ -497,7 +497,7 @@ void f0() {
tmp_V2f = __builtin_ia32_pswapdsf(tmp_V2f);
tmp_V2i = __builtin_ia32_pswapdsi(tmp_V2i);
tmp_V4i = __builtin_ia32_sha1rnds4(tmp_V4i, tmp_V4i, imm_i);
tmp_V4i = __builtin_ia32_sha1rnds4(tmp_V4i, tmp_V4i, imm_i_0_4);
tmp_V4i = __builtin_ia32_sha1nexte(tmp_V4i, tmp_V4i);
tmp_V4i = __builtin_ia32_sha1msg1(tmp_V4i, tmp_V4i);
tmp_V4i = __builtin_ia32_sha1msg2(tmp_V4i, tmp_V4i);

2
clang/test/CodeGen/sha-builtins.c
View File

@ -7,7 +7,7 @@
__m128i test_sha1rnds4(__m128i a, __m128i b) {
// CHECK: call <4 x i32> @llvm.x86.sha1rnds4
return _mm_sha1rnds4_epu32(a, b, 8);
return _mm_sha1rnds4_epu32(a, b, 3);
}
__m128i test_sha1nexte(__m128i a, __m128i b) {
// CHECK: call <4 x i32> @llvm.x86.sha1nexte