Temporary hack to let codegen assert or generate poor code in case

we are using AVX and no AVX version of the desired intruction is present,
this is better for incremental dev (without fallbacks it's easier to spot
what's missing). Not sure this is the best hack thought (we can also disable
all HasSSE* predicates by dinamically marking them 'false' if AVX is present)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109434 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/X86/X86InstrInfo.td b/lib/Target/X86/X86InstrInfo.td
index 8d370fe5f115b8a6fc685e4820b83f53c8bffd3e..2cfa2cae27a3f33e82d50e2198b7650a29e4f490 100644 (file)
--- a/lib/Target/X86/X86InstrInfo.td
+++ b/lib/Target/X86/X86InstrInfo.td
@@ -348,14 +348,19 @@ def tls32addr : ComplexPattern<i32, 5, "SelectTLSADDRAddr",
 // X86 Instruction Predicate Definitions.
 def HasCMov      : Predicate<"Subtarget->hasCMov()">;
 def NoCMov       : Predicate<"!Subtarget->hasCMov()">;
-def HasMMX       : Predicate<"Subtarget->hasMMX()">;
-def HasSSE1      : Predicate<"Subtarget->hasSSE1()">;
-def HasSSE2      : Predicate<"Subtarget->hasSSE2()">;
-def HasSSE3      : Predicate<"Subtarget->hasSSE3()">;
-def HasSSSE3     : Predicate<"Subtarget->hasSSSE3()">;
-def HasSSE41     : Predicate<"Subtarget->hasSSE41()">;
-def HasSSE42     : Predicate<"Subtarget->hasSSE42()">;
-def HasSSE4A     : Predicate<"Subtarget->hasSSE4A()">;
+
+// FIXME: temporary hack to let codegen assert or generate poor code in case
+// no AVX version of the desired intructions is present, this is better for
+// incremental dev (without fallbacks it's easier to spot what's missing)
+def HasMMX       : Predicate<"Subtarget->hasMMX() & !Subtarget->hasAVX()">;
+def HasSSE1      : Predicate<"Subtarget->hasSSE1() & !Subtarget->hasAVX()">;
+def HasSSE2      : Predicate<"Subtarget->hasSSE2() & !Subtarget->hasAVX()">;
+def HasSSE3      : Predicate<"Subtarget->hasSSE3() & !Subtarget->hasAVX()">;
+def HasSSSE3     : Predicate<"Subtarget->hasSSSE3() & !Subtarget->hasAVX()">;
+def HasSSE41     : Predicate<"Subtarget->hasSSE41() & !Subtarget->hasAVX()">;
+def HasSSE42     : Predicate<"Subtarget->hasSSE42() & !Subtarget->hasAVX()">;
+def HasSSE4A     : Predicate<"Subtarget->hasSSE4A() & !Subtarget->hasAVX()">;
+
 def HasAVX       : Predicate<"Subtarget->hasAVX()">;
 def HasCLMUL     : Predicate<"Subtarget->hasCLMUL()">;
 def HasFMA3      : Predicate<"Subtarget->hasFMA3()">;