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| author | Mihai Popa <mihail.popa@gmail.com> | 2013-08-22 13:16:07 +0000 |
|---|---|---|
| committer | Mihai Popa <mihail.popa@gmail.com> | 2013-08-22 13:16:07 +0000 |
| commit | 5f268555b967fccbfab6e7b69305d74006116927 (patch) | |
| tree | 2f8dc92f20a169e3a925eeb26645018cb1f74060 /lib/Target/ARM/ARMInstrNEON.td | |
| parent | 474be0d0f83eb6543bd4091946b40bb4967a3c11 (diff) | |
| download | llvm-5f268555b967fccbfab6e7b69305d74006116927.tar.gz llvm-5f268555b967fccbfab6e7b69305d74006116927.tar.bz2 llvm-5f268555b967fccbfab6e7b69305d74006116927.tar.xz | |
Fix ARM vcvt encoding when the number of fractional bits is zero.
The instruction to convert between floating point and fixed point representations
takes an immediate operand for the number of fractional bits of the fixed point
value. ARMARM specifies that when that number of bits is zero, the assembler
should encode floating point/integer conversion instructions.
This patch adds the necessary instruction aliases to achieve this behaviour.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189009 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/ARM/ARMInstrNEON.td')
| -rw-r--r-- | lib/Target/ARM/ARMInstrNEON.td | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/lib/Target/ARM/ARMInstrNEON.td b/lib/Target/ARM/ARMInstrNEON.td index af4f4d1914..59dea48b6a 100644 --- a/lib/Target/ARM/ARMInstrNEON.td +++ b/lib/Target/ARM/ARMInstrNEON.td @@ -5461,6 +5461,25 @@ def VCVTxu2fq : N2VCvtQ<1, 1, 0b1110, 0, 1, "vcvt", "f32.u32", v4f32, v4i32, int_arm_neon_vcvtfxu2fp>; } +def : NEONInstAlias<"vcvt${p}.s32.f32 $Dd, $Dm, #0", + (VCVTf2sd DPR:$Dd, DPR:$Dm, pred:$p)>; +def : NEONInstAlias<"vcvt${p}.u32.f32 $Dd, $Dm, #0", + (VCVTf2ud DPR:$Dd, DPR:$Dm, pred:$p)>; +def : NEONInstAlias<"vcvt${p}.f32.s32 $Dd, $Dm, #0", + (VCVTs2fd DPR:$Dd, DPR:$Dm, pred:$p)>; +def : NEONInstAlias<"vcvt${p}.f32.u32 $Dd, $Dm, #0", + (VCVTu2fd DPR:$Dd, DPR:$Dm, pred:$p)>; + +def : NEONInstAlias<"vcvt${p}.s32.f32 $Qd, $Qm, #0", + (VCVTf2sq QPR:$Qd, QPR:$Qm, pred:$p)>; +def : NEONInstAlias<"vcvt${p}.u32.f32 $Qd, $Qm, #0", + (VCVTf2uq QPR:$Qd, QPR:$Qm, pred:$p)>; +def : NEONInstAlias<"vcvt${p}.f32.s32 $Qd, $Qm, #0", + (VCVTs2fq QPR:$Qd, QPR:$Qm, pred:$p)>; +def : NEONInstAlias<"vcvt${p}.f32.u32 $Qd, $Qm, #0", + (VCVTu2fq QPR:$Qd, QPR:$Qm, pred:$p)>; + + // VCVT : Vector Convert Between Half-Precision and Single-Precision. def VCVTf2h : N2VNInt<0b11, 0b11, 0b01, 0b10, 0b01100, 0, 0, IIC_VUNAQ, "vcvt", "f16.f32", |