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