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-rw-r--r--lib/hipe/main/hipe.erl24
1 files changed, 17 insertions, 7 deletions
diff --git a/lib/hipe/main/hipe.erl b/lib/hipe/main/hipe.erl
index 0e32da1d36..01b7f34b3c 100644
--- a/lib/hipe/main/hipe.erl
+++ b/lib/hipe/main/hipe.erl
@@ -200,8 +200,9 @@
compile/4,
compile_core/4,
file/1,
- file/2,
- llvm_support_available/0,
+ file/2,
+ get_llvm_version/0,
+ llvm_support_available/0,
load/1,
help/0,
help_hiper/0,
@@ -1538,18 +1539,27 @@ check_options(Opts) ->
-spec llvm_support_available() -> boolean().
llvm_support_available() ->
- get_llvm_version() >= 3.4.
+ get_llvm_version() >= {3,4}.
+-type llvm_version() :: {Major :: integer(), Minor :: integer()}.
+
+-spec get_llvm_version() -> llvm_version() | {0, 0}.
get_llvm_version() ->
OptStr = os:cmd("opt -version"),
SubStr = "LLVM version ", N = length(SubStr),
case string:str(OptStr, SubStr) of
0 -> % No opt available
- 0.0;
+ {0, 0};
S ->
- case string:to_float(string:sub_string(OptStr, S + N)) of
- {error, _} -> 0.0; %XXX: Assumes no revision numbers in versioning
- {Float, _} -> Float
+ case string:tokens(string:sub_string(OptStr, S + N), ".") of
+ [MajorS, MinorS | _] ->
+ case {string:to_integer(MajorS), string:to_integer(MinorS)} of
+ {{Major, ""}, {Minor, _}}
+ when is_integer(Major), is_integer(Minor) ->
+ {Major, Minor};
+ _ -> {0, 0}
+ end;
+ _ -> {0, 0} %XXX: Assumes no revision numbers in versioning
end
end.