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| author | Nemanja Ivanovic <nemanja.i.ibm@gmail.com> | 2017-06-07 12:23:41 +0000 |
|---|---|---|
| committer | Nemanja Ivanovic <nemanja.i.ibm@gmail.com> | 2017-06-07 12:23:41 +0000 |
| commit | bb67f847d6f1e7896111061a2796a81ea9bc9475 (patch) | |
| tree | 31a5cb3422fbfe5de0e96487d731475587e8586a /llvm/test/CodeGen/PowerPC/crbits.ll | |
| parent | cf60ab313a33b5e6a480311a9d5d2765b03c384d (diff) | |
| download | bcm5719-llvm-bb67f847d6f1e7896111061a2796a81ea9bc9475.tar.gz bcm5719-llvm-bb67f847d6f1e7896111061a2796a81ea9bc9475.zip | |
[PowerPC] Eliminate integer compare instructions - vol. 3
Adds handling for i32 SETNE comparison (both sign and zero extended).
Differential Revision: https://reviews.llvm.org/D33718
llvm-svn: 304901
Diffstat (limited to 'llvm/test/CodeGen/PowerPC/crbits.ll')
| -rw-r--r-- | llvm/test/CodeGen/PowerPC/crbits.ll | 46 |
1 files changed, 25 insertions, 21 deletions
diff --git a/llvm/test/CodeGen/PowerPC/crbits.ll b/llvm/test/CodeGen/PowerPC/crbits.ll index a85237195c5..4ae91d1163a 100644 --- a/llvm/test/CodeGen/PowerPC/crbits.ll +++ b/llvm/test/CodeGen/PowerPC/crbits.ll @@ -94,13 +94,15 @@ entry: ret i1 %or7 ; CHECK-LABEL: @test5 +; CHECK-DAG: li [[NEG2:[0-9]+]], -2 ; CHECK-DAG: and [[REG1:[0-9]+]], 3, 4 -; CHECK-DAG: cmpwi {{[0-9]+}}, 5, -2 -; CHECK-DAG: li [[REG3:[0-9]+]], 1 -; CHECK-DAG: andi. {{[0-9]+}}, [[REG1]], 1 -; CHECK-DAG: crandc [[REG5:[0-9]+]], -; CHECK: isel 3, 0, [[REG3]], [[REG5]] -; CHECK: blr +; CHECK-DAG: xor [[NE1:[0-9]+]], 5, [[NEG2]] +; CHECK-DAG: clrldi [[TRUNC:[0-9]+]], [[REG1]], 63 +; CHECK-DAG: cntlzw [[NE2:[0-9]+]], [[NE1]] +; CHECK: srwi [[NE3:[0-9]+]], [[NE2]], 5 +; CHECK: xori [[NE4:[0-9]+]], [[NE3]], 1 +; CHECK: or 3, [[TRUNC]], [[NE4]] +; CHECK-NEXT: blr } ; Function Attrs: nounwind readnone @@ -112,15 +114,16 @@ entry: ret i1 %and7 ; CHECK-LABEL: @test6 -; CHECK-DAG: andi. {{[0-9]+}}, 3, 1 -; CHECK-DAG: cmpwi {{[0-9]+}}, 5, -2 -; CHECK-DAG: crmove [[REG1:[0-9]+]], 1 -; CHECK-DAG: andi. {{[0-9]+}}, 4, 1 -; CHECK-DAG: li [[REG2:[0-9]+]], 1 -; CHECK-DAG: crorc [[REG4:[0-9]+]], 1, -; CHECK-DAG: crnand [[REG5:[0-9]+]], [[REG4]], [[REG1]] -; CHECK: isel 3, 0, [[REG2]], [[REG5]] -; CHECK: blr +; CHECK-DAG: li [[NEG2:[0-9]+]], -2 +; CHECK-DAG: clrldi [[CLR1:[0-9]+]], 4, 63 +; CHECK-DAG: clrldi [[CLR2:[0-9]+]], 3, 63 +; CHECK-DAG: xor [[NE1:[0-9]+]], 5, [[NEG2]] +; CHECK-DAG: cntlzw [[NE2:[0-9]+]], [[NE1]] +; CHECK: srwi [[NE3:[0-9]+]], [[NE2]], 5 +; CHECK: xori [[NE4:[0-9]+]], [[NE3]], 1 +; CHECK: or [[OR:[0-9]+]], [[NE4]], [[CLR1]] +; CHECK: and 3, [[OR]], [[CLR2]] +; CHECK-NEXT: blr } ; Function Attrs: nounwind readnone @@ -187,12 +190,13 @@ entry: ret i32 %and ; CHECK-LABEL: @test10 -; CHECK-DAG: cmpwi {{[0-9]+}}, 3, 0 -; CHECK-DAG: cmpwi {{[0-9]+}}, 4, 0 -; CHECK-DAG: li [[REG2:[0-9]+]], 1 -; CHECK-DAG: crorc [[REG3:[0-9]+]], -; CHECK: isel 3, 0, [[REG2]], [[REG3]] -; CHECK: blr +; CHECK-DAG: cntlzw 3, 3 +; CHECK-DAG: cntlzw 4, 4 +; CHECK-DAG: srwi 3, 3, 5 +; CHECK-DAG: srwi 4, 4, 5 +; CHECK: xori 3, 3, 1 +; CHECK: and 3, 3, 4 +; CHECK-NEXT: blr } attributes #0 = { nounwind readnone } |
