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Author SHA1 Message Date
Ulrich Weigand ac37755c60 [SystemZ] Use fneg in test cases 
Now that we have fneg, prefer using it over "fsub -0.0, ...".
This helps in particular with strict FP tests, as fneg does
not raise any exceptions.
 2019-11-20 19:08:27 +01:00
Ulrich Weigand 49506d78e7 [SystemZ] Add CodeGen support for scalar f64 ops in vector registers 
The z13 vector facility includes some instructions that operate only on the
high f64 in a v2f64, effectively extending the FP register set from 16
to 32 registers.  It's still better to use the old instructions if the
operands happen to fit though, since the older instructions have a shorter
encoding.

Based on a patch by Richard Sandiford.

llvm-svn: 236524
 2015-05-05 19:28:34 +00:00
Ulrich Weigand cd808237b2 [SystemZ] Add CodeGen support for v2f64 
This adds ABI and CodeGen support for the v2f64 type, which is natively
supported by z13 instructions.

Based on a patch by Richard Sandiford.

llvm-svn: 236522
 2015-05-05 19:26:48 +00:00