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| author | Eli Friedman <eli.friedman@gmail.com> | 2011-12-15 02:07:20 +0000 |
|---|---|---|
| committer | Eli Friedman <eli.friedman@gmail.com> | 2011-12-15 02:07:20 +0000 |
| commit | ca072a39778933df4264ae393bd0ca797db59df6 (patch) | |
| tree | c5b3b1a5f67f12e4aefda14538802d74369c6d9e /test | |
| parent | 01d426e0e16aab075c1b0c03552e1cc9b5f3cef1 (diff) | |
Don't try to form FGETSIGN after legalization; it is possible in some cases, but the existing code can't do it correctly. PR11570.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146630 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/CodeGen/X86/movmsk.ll | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/test/CodeGen/X86/movmsk.ll b/test/CodeGen/X86/movmsk.ll index 2368548bfa..928ad037c1 100644 --- a/test/CodeGen/X86/movmsk.ll +++ b/test/CodeGen/X86/movmsk.ll @@ -78,6 +78,22 @@ entry: ret i32 %shr.i } +; PR11570 +define void @float_call_signbit(double %n) { +entry: +; FIXME: This should also use movmskps; we don't form the FGETSIGN node +; in this case, though. +; CHECK: float_call_signbit: +; CHECK: movd %xmm0, %rdi +; FIXME + %t0 = bitcast double %n to i64 + %tobool.i.i.i.i = icmp slt i64 %t0, 0 + tail call void @float_call_signbit_callee(i1 zeroext %tobool.i.i.i.i) + ret void +} +declare void @float_call_signbit_callee(i1 zeroext) + + ; rdar://10247336 ; movmskp{s|d} only set low 4/2 bits, high bits are known zero |