diff options
Diffstat (limited to 'llvm/test/CodeGen/Thumb2/LowOverheadLoops/revert-non-loop.mir')
| -rw-r--r-- | llvm/test/CodeGen/Thumb2/LowOverheadLoops/revert-non-loop.mir | 30 |
1 files changed, 16 insertions, 14 deletions
diff --git a/llvm/test/CodeGen/Thumb2/LowOverheadLoops/revert-non-loop.mir b/llvm/test/CodeGen/Thumb2/LowOverheadLoops/revert-non-loop.mir index bcd80c70bb4..da171f5387a 100644 --- a/llvm/test/CodeGen/Thumb2/LowOverheadLoops/revert-non-loop.mir +++ b/llvm/test/CodeGen/Thumb2/LowOverheadLoops/revert-non-loop.mir @@ -14,6 +14,9 @@ # CHECK: bb.4.while.end: --- | + target datalayout = "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64" + target triple = "thumbv8.1m.main" + define void @non_loop(i16* nocapture %a, i16* nocapture readonly %b, i32 %N) { entry: %cmp = icmp ugt i32 %N, 2 @@ -23,19 +26,19 @@ %test = call i1 @llvm.test.set.loop.iterations.i32(i32 %N) br i1 %test, label %while.body.preheader, label %while.end - while.body.preheader: ; preds = %entry, %not.preheader + while.body.preheader: ; preds = %not.preheader, %entry %scevgep = getelementptr i16, i16* %a, i32 -1 %scevgep3 = getelementptr i16, i16* %b, i32 -1 br label %while.body - while.body: ; preds = %while.body.preheader, %while.body + while.body: ; preds = %while.body, %while.body.preheader %lsr.iv4 = phi i16* [ %scevgep3, %while.body.preheader ], [ %scevgep5, %while.body ] %lsr.iv = phi i16* [ %scevgep, %while.body.preheader ], [ %scevgep1, %while.body ] %count = phi i32 [ %count.next, %while.body ], [ %N, %while.body.preheader ] - %scevgep2 = getelementptr i16, i16* %lsr.iv, i32 1 - %scevgep6 = getelementptr i16, i16* %lsr.iv4, i32 1 - %load = load i16, i16* %scevgep6, align 2 - store i16 %load, i16* %scevgep2, align 2 + %scevgep7 = getelementptr i16, i16* %lsr.iv, i32 1 + %scevgep4 = getelementptr i16, i16* %lsr.iv4, i32 1 + %load = load i16, i16* %scevgep4, align 2 + store i16 %load, i16* %scevgep7, align 2 %count.next = call i32 @llvm.loop.decrement.reg.i32.i32.i32(i32 %count, i32 1) %cmp1 = icmp ne i32 %count.next, 0 %scevgep1 = getelementptr i16, i16* %lsr.iv, i32 1 @@ -46,13 +49,8 @@ ret void } - ; Function Attrs: noduplicate nounwind declare i1 @llvm.test.set.loop.iterations.i32(i32) #0 - - ; Function Attrs: noduplicate nounwind declare i32 @llvm.loop.decrement.reg.i32.i32.i32(i32, i32) #0 - - ; Function Attrs: nounwind declare void @llvm.stackprotector(i8*, i8**) #1 attributes #0 = { noduplicate nounwind } @@ -67,7 +65,7 @@ legalized: false regBankSelected: false selected: false failedISel: false -tracksRegLiveness: false +tracksRegLiveness: true hasWinCFI: false registers: [] liveins: @@ -107,6 +105,7 @@ machineFunctionInfo: {} body: | bb.0.entry: successors: %bb.1(0x40000000), %bb.2(0x40000000) + liveins: $r0, $r1, $r2, $r7, $lr frame-setup tPUSH 14, $noreg, killed $r7, killed $lr, implicit-def $sp, implicit $sp frame-setup CFI_INSTRUCTION def_cfa_offset 8 @@ -118,21 +117,24 @@ body: | bb.1.not.preheader: successors: %bb.2(0x40000000), %bb.4(0x40000000) + liveins: $lr, $r0, $r1 t2WhileLoopStart renamable $lr, %bb.4, implicit-def dead $cpsr tB %bb.2, 14, $noreg bb.2.while.body.preheader: successors: %bb.3(0x80000000) + liveins: $lr, $r0, $r1 renamable $r1, dead $cpsr = tSUBi8 killed renamable $r1, 2, 14, $noreg renamable $r0, dead $cpsr = tSUBi8 killed renamable $r0, 2, 14, $noreg bb.3.while.body: successors: %bb.3(0x7c000000), %bb.4(0x04000000) + liveins: $lr, $r0, $r1 - renamable $r2, renamable $r1 = t2LDRH_PRE killed renamable $r1, 2, 14, $noreg :: (load 2 from %ir.scevgep6) - early-clobber renamable $r0 = t2STRH_PRE killed renamable $r2, killed renamable $r0, 2, 14, $noreg :: (store 2 into %ir.scevgep2) + renamable $r2, renamable $r1 = t2LDRH_PRE killed renamable $r1, 2, 14, $noreg :: (load 2 from %ir.scevgep4) + early-clobber renamable $r0 = t2STRH_PRE killed renamable $r2, killed renamable $r0, 2, 14, $noreg :: (store 2 into %ir.scevgep7) renamable $lr = t2LoopDec killed renamable $lr, 1 t2LoopEnd renamable $lr, %bb.3, implicit-def dead $cpsr tB %bb.4, 14, $noreg |
