s_or_not1_saveexec_b64 GPU Native ISA AMD Scalar

S OR NOT1 SAVEEXEC B64 Scalar Arithmetic

s_or_not1_saveexec_b64

Calculate bitwise OR on the scalar input and the negation of the EXEC mask, store the calculated result into the EXEC mask, set SCC iff the…

Encoding

Verified bit-level encoding data is not yet available for this instruction. The instruction-format classification below (SOP1) is well-documented and stable; exact per-target opcode/field bit positions have not yet been imported from a verified source.
Format SOP1
Execution Unit

Operands

Operand details have not yet been curated for this instruction.

GFX Target Compatibility

TargetSupport
gfx1100✅ Supported

Related

More in Scalar Arithmetic

Reference

AMDGPU / GFX ISA

Description

Calculate bitwise OR on the scalar input and the negation of the EXEC mask, store the calculated result into the EXEC mask, set SCC iff the calculated result is nonzero and store the original value of the EXEC mask into the scalar destination register.

Example

s_or_not1_saveexec_b64 vcc, 0.5

A real instruction accepted by the LLVM assembler, taken verbatim from LLVM's own AMDGPU MC test suite (gfx11). Not from an AMD document, and not authored here.

Sources