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wasmtime/cranelift/filetests/filetests/isa/aarch64/issue-5985.clif
Chris Fallin 264089e29d Cranelift: aarch64: fix undefined dest reg in f32x4.splat case. (#5987)
One of the cases for a splat operation, as updated in #5370, wrote to
a temp reg but then only conditionally transformed the temp into the
final destination register. In another codepath, `rd` was left
undefined. This causes a panic later when regalloc2 verifies SSA
properties of its input (here, value not def'd before use).

Fixes #5985.
2023-03-11 00:22:29 +00:00

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test compile precise-output
target aarch64
function %a() -> f32x4 system_v {
block0:
v16 = f32const 0x1.fffe00p-126
v25 = splat.f32x4 v16
return v25
}
; VCode:
; block0:
; movi v0.2d, #72056494543077120
; ret
;
; Disassembled:
; block0: ; offset 0x0
; movi v0.2d, #0xffff0000ffff00
; ret