llvm-6502/test/CodeGen
Andrea Di Biagio 3957d4245f [X86] Improve the lowering of BITCAST from MVT::f64 to MVT::v4i16/MVT::v8i8.
This patch teaches the x86 backend how to efficiently lower ISD::BITCAST dag
nodes from MVT::f64 to MVT::v4i16 (and vice versa), and from MVT::f64 to
MVT::v8i8 (and vice versa).

This patch extends the logic from revision 208107 to also handle MVT::v4i16
and MVT::v8i8. Also, this patch correctly propagates Undef values when
performing the widening of a vector (example: when widening from v2i32 to
v4i32, the upper 64bits of the resulting vector are 'undef').



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209451 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-22 16:21:39 +00:00
..
AArch64 AArch64/ARM64: enable more AArch64 tests. 2014-05-22 07:40:55 +00:00
ARM Segmented stacks: omit __morestack call when there's no frame. 2014-05-22 13:03:43 +00:00
ARM64 Test comment commit. 2014-05-21 16:19:51 +00:00
CPP
Generic
Hexagon reverting r209132 2014-05-19 16:22:11 +00:00
Inputs
Mips [mips] Make unalignedload.ll test stricter and easier to modify for MIPS32r6/MIPS64r6 2014-05-22 11:55:04 +00:00
MSP430
NVPTX
PowerPC [PowerPC] PR19796: Also match ISD::TargetConstant in isIntS16Immediate 2014-05-20 17:20:34 +00:00
R600 R600/SI: Match fp_to_uint / uint_to_fp for f64 2014-05-22 03:20:30 +00:00
SPARC
SystemZ
Thumb Segmented stacks: omit __morestack call when there's no frame. 2014-05-22 13:03:43 +00:00
Thumb2
X86 [X86] Improve the lowering of BITCAST from MVT::f64 to MVT::v4i16/MVT::v8i8. 2014-05-22 16:21:39 +00:00
XCore