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Commit Graph

Author	SHA1	Message	Date
Krzysztof Parzyszek	c87ecf2526	[Hexagon] Change .mir testcase to make sure function is not in SSA form If a machine function satisfies SSA, the IsSSA property is assumed even if the pass to be executed runs after existing from SSA. If the pass output then does not conform to SSA, a verifier error will be flagged (with expensive checks enabled). llvm-svn: 336682	2018-07-10 14:49:54 +00:00
Krzysztof Parzyszek	c052451a02	[Hexagon] Add implicit uses even when untied explicit uses are present An explicit untied use is not sufficient to maintain liveness of a register redefined in a predicated instruction. For example %1 = COPY %0 ... %1 = A2_paddif %2, %1, 1 could become $r1 = COPY $r0 ... $r1 = A2_paddif $p0, $r1, 1 and later $r1 = COPY $r0 ;; this is not really dead! ... $r1 = A2_paddif $p0, $r0, 1 llvm-svn: 336662	2018-07-10 12:57:49 +00:00

Author

SHA1

Message

Date

Krzysztof Parzyszek

c87ecf2526

[Hexagon] Change .mir testcase to make sure function is not in SSA form

If a machine function satisfies SSA, the IsSSA property is assumed even
if the pass to be executed runs after existing from SSA. If the pass
output then does not conform to SSA, a verifier error will be flagged
(with expensive checks enabled).

llvm-svn: 336682

2018-07-10 14:49:54 +00:00

Krzysztof Parzyszek

c052451a02

[Hexagon] Add implicit uses even when untied explicit uses are present

An explicit untied use is not sufficient to maintain liveness of a
register redefined in a predicated instruction. For example
  %1 = COPY %0
  ...
  %1 = A2_paddif %2, %1, 1
could become
  $r1 = COPY $r0
  ...
  $r1 = A2_paddif $p0, $r1, 1
and later
  $r1 = COPY $r0                ;; this is not really dead!
  ...
  $r1 = A2_paddif $p0, $r0, 1

llvm-svn: 336662

2018-07-10 12:57:49 +00:00

2 Commits