diff options
| author | Tom Stellard <thomas.stellard@amd.com> | 2013-02-05 17:09:14 +0000 |
|---|---|---|
| committer | Tom Stellard <thomas.stellard@amd.com> | 2013-02-05 17:09:14 +0000 |
| commit | 29b15a378045762ce09642ab9dd741ece41f59a3 (patch) | |
| tree | a70ffe39a47ba2ce8115abfe219d4321d194c161 /lib/Target/R600/R600InstrInfo.cpp | |
| parent | ebc535bc4af93e642bce7bd284946b858f38332c (diff) | |
R600: improve inputs/interpolation handling
Use one intrinsic for all sorts of interpolation.
Use two separate unexpanded instructions to represent INTERP_XY and _ZW -
this will allow to eliminate one part if it's not used.
Track liveness of special interpolation regs instead of reserving them -
this will allow to reuse those regs, lowering reg pressure.
Patch By: Vadim Girlin
v2[Vincent Lejeune]: Rebased against current llvm master
Signed-off-by: Vadim Girlin <vadimgirlin@gmail.com>
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174394 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/R600/R600InstrInfo.cpp')
| -rw-r--r-- | lib/Target/R600/R600InstrInfo.cpp | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/lib/Target/R600/R600InstrInfo.cpp b/lib/Target/R600/R600InstrInfo.cpp index 1adb1422dc..85859eb620 100644 --- a/lib/Target/R600/R600InstrInfo.cpp +++ b/lib/Target/R600/R600InstrInfo.cpp @@ -104,7 +104,6 @@ bool R600InstrInfo::isPlaceHolderOpcode(unsigned Opcode) const { switch (Opcode) { default: return false; case AMDGPU::RETURN: - case AMDGPU::RESERVE_REG: return true; } } |