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Provide (undocumented for now) __pause() call to emit PAUSE inst.

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Matt Pharr
2012-06-28 09:25:51 -07:00
parent f38770bf2a
commit d34a87404d
2 changed files with 6 additions and 0 deletions
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1
builtins.cpp
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@@ -467,6 +467,7 @@ lSetInternalFunctions(llvm::Module *module) {
"__num_cores", "__num_cores",
"__packed_load_active", "__packed_load_active",
"__packed_store_active", "__packed_store_active",
"__pause",
"__popcnt_int32", "__popcnt_int32",
"__popcnt_int64", "__popcnt_int64",
"__prefetch_read_uniform_1", "__prefetch_read_uniform_1",

5
builtins/util.m4
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@@ -1603,6 +1603,11 @@ declare void @ISPCInstrument(i8*, i8*, i32, i64) nounwind
declare i1 @__is_compile_time_constant_mask(<WIDTH x MASK> %mask) declare i1 @__is_compile_time_constant_mask(<WIDTH x MASK> %mask)
declare i1 @__is_compile_time_constant_varying_int32(<WIDTH x i32>) declare i1 @__is_compile_time_constant_varying_int32(<WIDTH x i32>)
define void @__pause() nounwind readnone {
call void asm sideeffect "pause", "~{dirflag},~{fpsr},~{flags}"() nounwind
ret void
}
; This function declares placeholder masked store functions for the ; This function declares placeholder masked store functions for the
; front-end to use. ; front-end to use.
; ;