205 lines
10 KiB
LLVM
205 lines
10 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -mtriple=thumbv8.1m.main -simplifycfg -simplifycfg-require-and-preserve-domtree=1 -S %s -o - | FileCheck %s --check-prefix=V8M
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; RUN: opt -mtriple=thumbv8m.main -simplifycfg -simplifycfg-require-and-preserve-domtree=1 -S %s -o - | FileCheck %s --check-prefix=V8M
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; RUN: opt -mtriple=thumbv8m.base -simplifycfg -simplifycfg-require-and-preserve-domtree=1 -S %s -o - | FileCheck %s --check-prefix=V8M
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; RUN: opt -mtriple=armv8a -simplifycfg -simplifycfg-require-and-preserve-domtree=1 -S %s -o - | FileCheck %s --check-prefix=V8A
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; Test that the phis from for.inc.preheader aren't hoisted into sw.bb92 because
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; the cost is too great - we can make a better decision later on.
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; FIXME: The Arm cost model needs to be updated for SizeAndLatency.
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define i32 @multiple_spec_select_costs(i8* %a, i32* %idx, i8 %in) {
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; V8M-LABEL: @multiple_spec_select_costs(
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; V8M-NEXT: entry:
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; V8M-NEXT: [[GEP_A_2:%.*]] = getelementptr inbounds i8, i8* [[A:%.*]], i32 2
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; V8M-NEXT: [[INCDEC_PTR109_C4:%.*]] = getelementptr inbounds i8, i8* [[A]], i32 3
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; V8M-NEXT: [[ZERO:%.*]] = icmp ne i8 [[IN:%.*]], 0
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; V8M-NEXT: br i1 [[ZERO]], label [[FOR_INC_PREHEADER:%.*]], label [[SW_BB92:%.*]]
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; V8M: sw.bb92:
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; V8M-NEXT: [[C_OFF_I150:%.*]] = add i8 [[IN]], -48
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; V8M-NEXT: [[UGT_9:%.*]] = icmp ugt i8 [[C_OFF_I150]], 9
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; V8M-NEXT: [[SPEC_SELECT:%.*]] = select i1 [[UGT_9]], i1 false, i1 true
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; V8M-NEXT: [[SPEC_SELECT1:%.*]] = select i1 [[UGT_9]], i32 1, i32 7
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; V8M-NEXT: br label [[FOR_INC_PREHEADER]]
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; V8M: for.inc.preheader:
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; V8M-NEXT: [[STR_PH_0:%.*]] = phi i8* [ [[GEP_A_2]], [[ENTRY:%.*]] ], [ [[INCDEC_PTR109_C4]], [[SW_BB92]] ]
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; V8M-NEXT: [[CMP:%.*]] = phi i1 [ false, [[ENTRY]] ], [ [[SPEC_SELECT]], [[SW_BB92]] ]
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; V8M-NEXT: [[PHI_RES:%.*]] = phi i32 [ 1, [[ENTRY]] ], [ [[SPEC_SELECT1]], [[SW_BB92]] ]
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; V8M-NEXT: br label [[FOR_INC:%.*]]
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; V8M: for.inc:
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; V8M-NEXT: [[STR_PH_1:%.*]] = phi i8* [ [[INCDEC_PTR109:%.*]], [[FOR_BODY:%.*]] ], [ [[STR_PH_0]], [[FOR_INC_PREHEADER]] ]
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; V8M-NEXT: [[INCDEC_PTR109]] = getelementptr inbounds i8, i8* [[STR_PH_1]], i32 1
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; V8M-NEXT: [[LOAD_1:%.*]] = load i8, i8* [[INCDEC_PTR109]], align 1
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; V8M-NEXT: [[TOBOOL:%.*]] = icmp ne i8 [[LOAD_1]], 0
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; V8M-NEXT: [[AND:%.*]] = and i1 [[CMP]], [[TOBOOL]]
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; V8M-NEXT: br i1 [[AND]], label [[FOR_BODY]], label [[EXIT:%.*]]
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; V8M: for.body:
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; V8M-NEXT: [[CMP_1:%.*]] = icmp eq i8 [[LOAD_1]], 1
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; V8M-NEXT: br i1 [[CMP_1]], label [[FOR_INC]], label [[SW_BB92]]
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; V8M: exit:
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; V8M-NEXT: ret i32 [[PHI_RES]]
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;
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; V8A-LABEL: @multiple_spec_select_costs(
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; V8A-NEXT: entry:
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; V8A-NEXT: [[GEP_A_2:%.*]] = getelementptr inbounds i8, i8* [[A:%.*]], i32 2
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; V8A-NEXT: [[INCDEC_PTR109_C4:%.*]] = getelementptr inbounds i8, i8* [[A]], i32 3
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; V8A-NEXT: [[ZERO:%.*]] = icmp ne i8 [[IN:%.*]], 0
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; V8A-NEXT: br i1 [[ZERO]], label [[FOR_INC_PREHEADER:%.*]], label [[SW_BB92:%.*]]
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; V8A: sw.bb92:
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; V8A-NEXT: [[C_OFF_I150:%.*]] = add i8 [[IN]], -48
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; V8A-NEXT: [[UGT_9:%.*]] = icmp ugt i8 [[C_OFF_I150]], 9
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; V8A-NEXT: [[SPEC_SELECT:%.*]] = select i1 [[UGT_9]], i1 false, i1 true
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; V8A-NEXT: [[SPEC_SELECT1:%.*]] = select i1 [[UGT_9]], i32 1, i32 7
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; V8A-NEXT: br label [[FOR_INC_PREHEADER]]
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; V8A: for.inc.preheader:
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; V8A-NEXT: [[STR_PH_0:%.*]] = phi i8* [ [[GEP_A_2]], [[ENTRY:%.*]] ], [ [[INCDEC_PTR109_C4]], [[SW_BB92]] ]
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; V8A-NEXT: [[CMP:%.*]] = phi i1 [ false, [[ENTRY]] ], [ [[SPEC_SELECT]], [[SW_BB92]] ]
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; V8A-NEXT: [[PHI_RES:%.*]] = phi i32 [ 1, [[ENTRY]] ], [ [[SPEC_SELECT1]], [[SW_BB92]] ]
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; V8A-NEXT: br label [[FOR_INC:%.*]]
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; V8A: for.inc:
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; V8A-NEXT: [[STR_PH_1:%.*]] = phi i8* [ [[INCDEC_PTR109:%.*]], [[FOR_BODY:%.*]] ], [ [[STR_PH_0]], [[FOR_INC_PREHEADER]] ]
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; V8A-NEXT: [[INCDEC_PTR109]] = getelementptr inbounds i8, i8* [[STR_PH_1]], i32 1
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; V8A-NEXT: [[LOAD_1:%.*]] = load i8, i8* [[INCDEC_PTR109]], align 1
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; V8A-NEXT: [[TOBOOL:%.*]] = icmp ne i8 [[LOAD_1]], 0
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; V8A-NEXT: [[AND:%.*]] = and i1 [[CMP]], [[TOBOOL]]
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; V8A-NEXT: br i1 [[AND]], label [[FOR_BODY]], label [[EXIT:%.*]]
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; V8A: for.body:
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; V8A-NEXT: [[CMP_1:%.*]] = icmp eq i8 [[LOAD_1]], 1
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; V8A-NEXT: br i1 [[CMP_1]], label [[FOR_INC]], label [[SW_BB92]]
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; V8A: exit:
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; V8A-NEXT: ret i32 [[PHI_RES]]
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;
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entry:
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%gep.a.2 = getelementptr inbounds i8, i8* %a, i32 2
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%incdec.ptr109.c4 = getelementptr inbounds i8, i8* %a, i32 3
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%zero = icmp ne i8 %in, 0
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br i1 %zero , label %for.inc.preheader, label %sw.bb92
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sw.bb92:
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%c.off.i150 = add i8 %in, -48
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%ugt.9 = icmp ugt i8 %c.off.i150, 9
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br i1 %ugt.9, label %for.inc.preheader, label %select.unfold198
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select.unfold198:
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br label %for.inc.preheader
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for.inc.preheader:
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%str.ph.0 = phi i8* [ %incdec.ptr109.c4, %select.unfold198 ], [ %incdec.ptr109.c4, %sw.bb92 ], [ %gep.a.2, %entry ]
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%cmp = phi i1 [ true, %select.unfold198 ], [ false, %sw.bb92 ], [ false, %entry ]
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%phi.res = phi i32 [ 7, %select.unfold198 ], [ 1, %sw.bb92 ], [ 1, %entry ]
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br label %for.inc
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for.inc:
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%str.ph.1 = phi i8* [ %incdec.ptr109, %for.body ], [ %str.ph.0, %for.inc.preheader ]
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%incdec.ptr109 = getelementptr inbounds i8, i8* %str.ph.1, i32 1
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%load.1 = load i8, i8* %incdec.ptr109, align 1
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%tobool = icmp ne i8 %load.1, 0
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%and = and i1 %cmp, %tobool
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br i1 %and, label %for.body, label %exit
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for.body:
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%cmp.1 = icmp eq i8 %load.1, 1
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br i1 %cmp.1, label %for.inc, label %sw.bb92
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exit:
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ret i32 %phi.res
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}
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define i32 @multiple_spec_select_costs_minsize(i8* %a, i32* %idx, i8 %in) #0 {
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; V8M-LABEL: @multiple_spec_select_costs_minsize(
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; V8M-NEXT: entry:
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; V8M-NEXT: [[GEP_A_2:%.*]] = getelementptr inbounds i8, i8* [[A:%.*]], i32 2
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; V8M-NEXT: [[INCDEC_PTR109_C4:%.*]] = getelementptr inbounds i8, i8* [[A]], i32 3
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; V8M-NEXT: [[ZERO:%.*]] = icmp ne i8 [[IN:%.*]], 0
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; V8M-NEXT: br i1 [[ZERO]], label [[FOR_INC_PREHEADER:%.*]], label [[SW_BB92:%.*]]
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; V8M: sw.bb92:
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; V8M-NEXT: [[C_OFF_I150:%.*]] = add i8 [[IN]], -48
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; V8M-NEXT: [[UGT_9:%.*]] = icmp ugt i8 [[C_OFF_I150]], 9
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; V8M-NEXT: br i1 [[UGT_9]], label [[FOR_INC_PREHEADER]], label [[SELECT_UNFOLD198:%.*]]
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; V8M: select.unfold198:
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; V8M-NEXT: br label [[FOR_INC_PREHEADER]]
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; V8M: for.inc.preheader:
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; V8M-NEXT: [[STR_PH_0:%.*]] = phi i8* [ [[INCDEC_PTR109_C4]], [[SELECT_UNFOLD198]] ], [ [[INCDEC_PTR109_C4]], [[SW_BB92]] ], [ [[GEP_A_2]], [[ENTRY:%.*]] ]
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; V8M-NEXT: [[CMP:%.*]] = phi i1 [ true, [[SELECT_UNFOLD198]] ], [ false, [[SW_BB92]] ], [ false, [[ENTRY]] ]
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; V8M-NEXT: [[PHI_RES:%.*]] = phi i32 [ 7, [[SELECT_UNFOLD198]] ], [ 1, [[SW_BB92]] ], [ 1, [[ENTRY]] ]
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; V8M-NEXT: br label [[FOR_INC:%.*]]
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; V8M: for.inc:
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; V8M-NEXT: [[STR_PH_1:%.*]] = phi i8* [ [[INCDEC_PTR109:%.*]], [[FOR_BODY:%.*]] ], [ [[STR_PH_0]], [[FOR_INC_PREHEADER]] ]
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; V8M-NEXT: [[INCDEC_PTR109]] = getelementptr inbounds i8, i8* [[STR_PH_1]], i32 1
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; V8M-NEXT: [[LOAD_1:%.*]] = load i8, i8* [[INCDEC_PTR109]], align 1
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; V8M-NEXT: [[TOBOOL:%.*]] = icmp ne i8 [[LOAD_1]], 0
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; V8M-NEXT: [[AND:%.*]] = and i1 [[CMP]], [[TOBOOL]]
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; V8M-NEXT: br i1 [[AND]], label [[FOR_BODY]], label [[EXIT:%.*]]
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; V8M: for.body:
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; V8M-NEXT: [[CMP_1:%.*]] = icmp eq i8 [[LOAD_1]], 1
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; V8M-NEXT: br i1 [[CMP_1]], label [[FOR_INC]], label [[SW_BB92]]
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; V8M: exit:
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; V8M-NEXT: ret i32 [[PHI_RES]]
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;
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; V8A-LABEL: @multiple_spec_select_costs_minsize(
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; V8A-NEXT: entry:
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; V8A-NEXT: [[GEP_A_2:%.*]] = getelementptr inbounds i8, i8* [[A:%.*]], i32 2
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; V8A-NEXT: [[INCDEC_PTR109_C4:%.*]] = getelementptr inbounds i8, i8* [[A]], i32 3
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; V8A-NEXT: [[ZERO:%.*]] = icmp ne i8 [[IN:%.*]], 0
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; V8A-NEXT: br i1 [[ZERO]], label [[FOR_INC_PREHEADER:%.*]], label [[SW_BB92:%.*]]
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; V8A: sw.bb92:
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; V8A-NEXT: [[C_OFF_I150:%.*]] = add i8 [[IN]], -48
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; V8A-NEXT: [[UGT_9:%.*]] = icmp ugt i8 [[C_OFF_I150]], 9
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; V8A-NEXT: [[SPEC_SELECT:%.*]] = select i1 [[UGT_9]], i1 false, i1 true
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; V8A-NEXT: [[SPEC_SELECT1:%.*]] = select i1 [[UGT_9]], i32 1, i32 7
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; V8A-NEXT: br label [[FOR_INC_PREHEADER]]
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; V8A: for.inc.preheader:
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; V8A-NEXT: [[STR_PH_0:%.*]] = phi i8* [ [[GEP_A_2]], [[ENTRY:%.*]] ], [ [[INCDEC_PTR109_C4]], [[SW_BB92]] ]
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; V8A-NEXT: [[CMP:%.*]] = phi i1 [ false, [[ENTRY]] ], [ [[SPEC_SELECT]], [[SW_BB92]] ]
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; V8A-NEXT: [[PHI_RES:%.*]] = phi i32 [ 1, [[ENTRY]] ], [ [[SPEC_SELECT1]], [[SW_BB92]] ]
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; V8A-NEXT: br label [[FOR_INC:%.*]]
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; V8A: for.inc:
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; V8A-NEXT: [[STR_PH_1:%.*]] = phi i8* [ [[INCDEC_PTR109:%.*]], [[FOR_BODY:%.*]] ], [ [[STR_PH_0]], [[FOR_INC_PREHEADER]] ]
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; V8A-NEXT: [[INCDEC_PTR109]] = getelementptr inbounds i8, i8* [[STR_PH_1]], i32 1
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; V8A-NEXT: [[LOAD_1:%.*]] = load i8, i8* [[INCDEC_PTR109]], align 1
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; V8A-NEXT: [[TOBOOL:%.*]] = icmp ne i8 [[LOAD_1]], 0
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; V8A-NEXT: [[AND:%.*]] = and i1 [[CMP]], [[TOBOOL]]
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; V8A-NEXT: br i1 [[AND]], label [[FOR_BODY]], label [[EXIT:%.*]]
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; V8A: for.body:
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; V8A-NEXT: [[CMP_1:%.*]] = icmp eq i8 [[LOAD_1]], 1
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; V8A-NEXT: br i1 [[CMP_1]], label [[FOR_INC]], label [[SW_BB92]]
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; V8A: exit:
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; V8A-NEXT: ret i32 [[PHI_RES]]
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;
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entry:
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%gep.a.2 = getelementptr inbounds i8, i8* %a, i32 2
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%incdec.ptr109.c4 = getelementptr inbounds i8, i8* %a, i32 3
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%zero = icmp ne i8 %in, 0
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br i1 %zero , label %for.inc.preheader, label %sw.bb92
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sw.bb92:
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%c.off.i150 = add i8 %in, -48
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%ugt.9 = icmp ugt i8 %c.off.i150, 9
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br i1 %ugt.9, label %for.inc.preheader, label %select.unfold198
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select.unfold198:
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br label %for.inc.preheader
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for.inc.preheader:
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%str.ph.0 = phi i8* [ %incdec.ptr109.c4, %select.unfold198 ], [ %incdec.ptr109.c4, %sw.bb92 ], [ %gep.a.2, %entry ]
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%cmp = phi i1 [ true, %select.unfold198 ], [ false, %sw.bb92 ], [ false, %entry ]
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%phi.res = phi i32 [ 7, %select.unfold198 ], [ 1, %sw.bb92 ], [ 1, %entry ]
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br label %for.inc
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for.inc:
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%str.ph.1 = phi i8* [ %incdec.ptr109, %for.body ], [ %str.ph.0, %for.inc.preheader ]
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%incdec.ptr109 = getelementptr inbounds i8, i8* %str.ph.1, i32 1
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%load.1 = load i8, i8* %incdec.ptr109, align 1
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%tobool = icmp ne i8 %load.1, 0
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%and = and i1 %cmp, %tobool
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br i1 %and, label %for.body, label %exit
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for.body:
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%cmp.1 = icmp eq i8 %load.1, 1
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br i1 %cmp.1, label %for.inc, label %sw.bb92
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exit:
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ret i32 %phi.res
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}
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attributes #0 = { minsize optsize }
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