[LLVMbugs] [Bug 10099] New: rsqrt_ss has wrong type
bugzilla-daemon at llvm.org
bugzilla-daemon at llvm.org
Wed Jun 8 02:48:53 PDT 2011
http://llvm.org/bugs/show_bug.cgi?id=10099
Summary: rsqrt_ss has wrong type
Product: new-bugs
Version: 2.9
Platform: PC
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P
Component: new bugs
AssignedTo: unassignedbugs at nondot.org
ReportedBy: baldrick at free.fr
CC: llvmbugs at cs.uiuc.edu
The rsqrtss instruction takes the reciprocal square root of a float, but LLVM
declares it as taking <4 x float>:
def int_x86_sse_rsqrt_ss : GCCBuiltin<"__builtin_ia32_rsqrtss">,
Intrinsic<[llvm_v4f32_ty], [llvm_v4f32_ty],
[IntrNoMem]>;
Note that it is rsqrt_ps (declared just afterwards) that operates on <4 x
float>.
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