derek.holloway
7502bf64a4
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77 lines
4.4 KiB
LLVM
77 lines
4.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals
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; RUN: opt -S -mtriple=x86_64-- -expand-ir-insts -expand-div-rem-bits 128 < %s | FileCheck %s
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; RUN: opt -S -mtriple=x86_64-- -passes='require<libcall-lowering-info>,expand-ir-insts' -expand-div-rem-bits 128 < %s | FileCheck %s
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define void @test(ptr %ptr, ptr %out) nounwind !prof !0 {
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; CHECK-LABEL: @test(
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; CHECK-NEXT: _udiv-special-cases:
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; CHECK-NEXT: [[A:%.*]] = load i129, ptr [[PTR:%.*]], align 16
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; CHECK-NEXT: [[TMP0:%.*]] = freeze i129 3
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; CHECK-NEXT: [[TMP1:%.*]] = freeze i129 [[A]]
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; CHECK-NEXT: [[TMP2:%.*]] = icmp eq i129 [[TMP0]], 0
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; CHECK-NEXT: [[TMP3:%.*]] = icmp eq i129 [[TMP1]], 0
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; CHECK-NEXT: [[TMP4:%.*]] = or i1 [[TMP2]], [[TMP3]]
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; CHECK-NEXT: [[TMP5:%.*]] = call i129 @llvm.ctlz.i129(i129 [[TMP0]], i1 true)
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; CHECK-NEXT: [[TMP6:%.*]] = call i129 @llvm.ctlz.i129(i129 [[TMP1]], i1 true)
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; CHECK-NEXT: [[TMP7:%.*]] = sub i129 [[TMP5]], [[TMP6]]
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; CHECK-NEXT: [[TMP8:%.*]] = icmp ugt i129 [[TMP7]], 128
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; CHECK-NEXT: [[TMP9:%.*]] = select i1 [[TMP4]], i1 true, i1 [[TMP8]], !prof [[PROF1:![0-9]+]]
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; CHECK-NEXT: [[TMP10:%.*]] = icmp eq i129 [[TMP7]], 128
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; CHECK-NEXT: [[TMP11:%.*]] = select i1 [[TMP9]], i129 0, i129 [[TMP1]], !prof [[PROF2:![0-9]+]]
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; CHECK-NEXT: [[TMP12:%.*]] = select i1 [[TMP9]], i1 true, i1 [[TMP10]], !prof [[PROF2]]
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; CHECK-NEXT: br i1 [[TMP12]], label [[UDIV_END:%.*]], label [[UDIV_BB1:%.*]], !prof [[PROF1]]
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; CHECK: udiv-loop-exit:
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; CHECK-NEXT: [[TMP13:%.*]] = phi i129 [ 0, [[UDIV_BB1]] ], [ [[TMP28:%.*]], [[UDIV_DO_WHILE:%.*]] ]
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; CHECK-NEXT: [[TMP14:%.*]] = phi i129 [ [[TMP37:%.*]], [[UDIV_BB1]] ], [ [[TMP25:%.*]], [[UDIV_DO_WHILE]] ]
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; CHECK-NEXT: [[TMP15:%.*]] = shl i129 [[TMP14]], 1
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; CHECK-NEXT: [[TMP16:%.*]] = or i129 [[TMP13]], [[TMP15]]
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; CHECK-NEXT: br label [[UDIV_END]]
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; CHECK: udiv-do-while:
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; CHECK-NEXT: [[TMP17:%.*]] = phi i129 [ 0, [[UDIV_PREHEADER:%.*]] ], [ [[TMP28]], [[UDIV_DO_WHILE]] ]
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; CHECK-NEXT: [[TMP18:%.*]] = phi i129 [ [[TMP35:%.*]], [[UDIV_PREHEADER]] ], [ [[TMP31:%.*]], [[UDIV_DO_WHILE]] ]
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; CHECK-NEXT: [[TMP19:%.*]] = phi i129 [ [[TMP33:%.*]], [[UDIV_PREHEADER]] ], [ [[TMP30:%.*]], [[UDIV_DO_WHILE]] ]
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; CHECK-NEXT: [[TMP20:%.*]] = phi i129 [ [[TMP37]], [[UDIV_PREHEADER]] ], [ [[TMP25]], [[UDIV_DO_WHILE]] ]
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; CHECK-NEXT: [[TMP21:%.*]] = shl i129 [[TMP19]], 1
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; CHECK-NEXT: [[TMP22:%.*]] = lshr i129 [[TMP20]], 128
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; CHECK-NEXT: [[TMP23:%.*]] = or i129 [[TMP21]], [[TMP22]]
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; CHECK-NEXT: [[TMP24:%.*]] = shl i129 [[TMP20]], 1
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; CHECK-NEXT: [[TMP25]] = or i129 [[TMP17]], [[TMP24]]
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; CHECK-NEXT: [[TMP26:%.*]] = sub i129 [[TMP34:%.*]], [[TMP23]]
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; CHECK-NEXT: [[TMP27:%.*]] = ashr i129 [[TMP26]], 128
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; CHECK-NEXT: [[TMP28]] = and i129 [[TMP27]], 1
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; CHECK-NEXT: [[TMP29:%.*]] = and i129 [[TMP27]], [[TMP0]]
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; CHECK-NEXT: [[TMP30]] = sub i129 [[TMP23]], [[TMP29]]
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; CHECK-NEXT: [[TMP31]] = add i129 [[TMP18]], -1
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; CHECK-NEXT: [[TMP32:%.*]] = icmp eq i129 [[TMP31]], 0
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; CHECK-NEXT: br i1 [[TMP32]], label [[UDIV_LOOP_EXIT:%.*]], label [[UDIV_DO_WHILE]], !prof [[PROF1]]
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; CHECK: udiv-preheader:
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; CHECK-NEXT: [[TMP33]] = lshr i129 [[TMP1]], [[TMP35]]
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; CHECK-NEXT: [[TMP34]] = add i129 [[TMP0]], -1
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; CHECK-NEXT: br label [[UDIV_DO_WHILE]]
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; CHECK: udiv-bb1:
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; CHECK-NEXT: [[TMP35]] = add i129 [[TMP7]], 1
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; CHECK-NEXT: [[TMP36:%.*]] = sub i129 128, [[TMP7]]
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; CHECK-NEXT: [[TMP37]] = shl i129 [[TMP1]], [[TMP36]]
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; CHECK-NEXT: [[TMP38:%.*]] = icmp eq i129 [[TMP35]], 0
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; CHECK-NEXT: br i1 [[TMP38]], label [[UDIV_LOOP_EXIT]], label [[UDIV_PREHEADER]], !prof [[PROF1]]
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; CHECK: udiv-end:
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; CHECK-NEXT: [[TMP39:%.*]] = phi i129 [ [[TMP16]], [[UDIV_LOOP_EXIT]] ], [ [[TMP11]], [[_UDIV_SPECIAL_CASES:%.*]] ]
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; CHECK-NEXT: store i129 [[TMP39]], ptr [[OUT:%.*]], align 16
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; CHECK-NEXT: ret void
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;
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%a = load i129, ptr %ptr
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%res = udiv i129 %a, 3
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store i129 %res, ptr %out
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ret void
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}
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!0 = !{!"function_entry_count", i64 1000}
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;.
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; CHECK: attributes #[[ATTR0:[0-9]+]] = { nounwind }
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; CHECK: attributes #[[ATTR1:[0-9]+]] = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
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;.
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; CHECK: [[META0:![0-9]+]] = !{!"function_entry_count", i64 1000}
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; CHECK: [[PROF1]] = !{!"branch_weights", i32 1, i32 1048575}
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; CHECK: [[PROF2]] = !{!"unknown", !"integer-division"}
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;.
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