Commit Graph

4 Commits

Author SHA1 Message Date
Benjamin Kramer 4d0916788d Give the rdrand instructions a SideEffect flag and a chain so MachineCSE and MachineLICM don't touch it.
I already had the necessary things in place for IR-level passes but missed the machine passes.

llvm-svn: 160137
2012-07-12 18:14:57 +00:00
NAKAMURA Takumi f415fe70f3 llvm/test/CodeGen/X86/rdrand.ll: Relax expression corresponding to Win64 CC.
llvm-svn: 160124
2012-07-12 10:22:57 +00:00
Benjamin Kramer cbac2f3bc9 Use %s instead of the explicit name, the latter doesn't work in out-of-tree builds.
llvm-svn: 160120
2012-07-12 09:36:29 +00:00
Benjamin Kramer 0ab2794eda Add intrinsics for Ivy Bridge's rdrand instruction.
The rdrand/cmov sequence is the same that is emitted by both
GCC and ICC.

Fixes PR13284.

llvm-svn: 160117
2012-07-12 09:31:43 +00:00