[PATCH] D101074: [X86] Canonicalize SGT/UGT compares with constants to use SGE/UGE to reduce the number of EFLAGs reads. (PR48760)

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon updated this revision to Diff 352738.
RKSimon retitled this revision from "[X86] Canonicalize LT/GT compares with constants to use LE/GE to reduce the number of EFLAGs reads. (PR48760)" to "[X86] Canonicalize SGT/UGT compares with constants to use SGE/UGE to reduce the number of EFLAGs reads. (PR48760)".
RKSimon edited the summary of this revision.
RKSimon added a comment.

Remove the unnecessary SLT/ULT handling + avoid the remaining i64 immediate comparison regressions.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D101074/new/

https://reviews.llvm.org/D101074

Files:
  llvm/lib/Target/X86/X86ISelLowering.cpp
  llvm/test/CodeGen/X86/2008-09-11-CoalescerBug2.ll
  llvm/test/CodeGen/X86/atomic-eflags-reuse.ll
  llvm/test/CodeGen/X86/cmov.ll
  llvm/test/CodeGen/X86/lack-of-signed-truncation-check.ll
  llvm/test/CodeGen/X86/mul-constant-result.ll
  llvm/test/CodeGen/X86/or-branch.ll
  llvm/test/CodeGen/X86/pr45995-2.ll
  llvm/test/CodeGen/X86/pr5145.ll
  llvm/test/CodeGen/X86/sadd_sat.ll
  llvm/test/CodeGen/X86/sadd_sat_plus.ll
  llvm/test/CodeGen/X86/sdiv_fix_sat.ll
  llvm/test/CodeGen/X86/select.ll
  llvm/test/CodeGen/X86/select_const.ll
  llvm/test/CodeGen/X86/setcc-logic.ll
  llvm/test/CodeGen/X86/setcc.ll
  llvm/test/CodeGen/X86/smul_fix_sat.ll
  llvm/test/CodeGen/X86/smul_fix_sat_constants.ll
  llvm/test/CodeGen/X86/srem-seteq.ll
  llvm/test/CodeGen/X86/ssub_sat.ll
  llvm/test/CodeGen/X86/ssub_sat_plus.ll
  llvm/test/CodeGen/X86/udiv_fix_sat.ll
  llvm/test/CodeGen/X86/umul_fix_sat.ll
  llvm/test/CodeGen/X86/urem-seteq-illegal-types.ll
  llvm/test/CodeGen/X86/urem-seteq.ll
  llvm/test/CodeGen/X86/vector-mulfix-legalize.ll
  llvm/test/CodeGen/X86/zext-sext.ll

-------------- next part --------------
A non-text attachment was scrubbed...
Name: D101074.352738.patch
Type: text/x-patch
Size: 67926 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20210617/df94a6ab/attachment-0001.bin>