; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -passes=loop-idiom < %s -S | FileCheck %s
target datalayout = "e-p:32:32:32-p1:64:64:64-p2:16:16:16-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:32-n8:16:32:64"
target triple = "x86_64-apple-darwin10.0.0"
; Two dimensional nested loop should be promoted to one big memset.
define void @test10(ptr addrspace(2) %X) nounwind ssp {
; CHECK-LABEL: @test10(
; CHECK-NEXT: entry:
; CHECK-NEXT: call void @llvm.memset.p2.i16(ptr addrspace(2) align 1 [[X:%.*]], i8 0, i16 10000, i1 false)
; CHECK-NEXT: br label [[BB_NPH:%.*]]
; CHECK: bb.nph:
; CHECK-NEXT: [[I_04:%.*]] = phi i16 [ 0, [[ENTRY:%.*]] ], [ [[INC12:%.*]], [[FOR_INC10:%.*]] ]
; CHECK-NEXT: [[TMP0:%.*]] = mul nuw nsw i16 [[I_04]], 100
; CHECK-NEXT: [[SCEVGEP:%.*]] = getelementptr i8, ptr addrspace(2) [[X]], i16 [[TMP0]]
; CHECK-NEXT: br label [[FOR_BODY5:%.*]]
; CHECK: for.body5:
; CHECK-NEXT: [[J_02:%.*]] = phi i16 [ 0, [[BB_NPH]] ], [ [[INC:%.*]], [[FOR_BODY5]] ]
; CHECK-NEXT: [[MUL:%.*]] = mul nsw i16 [[I_04]], 100
; CHECK-NEXT: [[ADD:%.*]] = add nsw i16 [[J_02]], [[MUL]]
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr addrspace(2) [[X]], i16 [[ADD]]
; CHECK-NEXT: [[INC]] = add nsw i16 [[J_02]], 1
; CHECK-NEXT: [[CMP4:%.*]] = icmp eq i16 [[INC]], 100
; CHECK-NEXT: br i1 [[CMP4]], label [[FOR_INC10]], label [[FOR_BODY5]]
; CHECK: for.inc10:
; CHECK-NEXT: [[INC12]] = add nsw i16 [[I_04]], 1
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i16 [[INC12]], 100
; CHECK-NEXT: br i1 [[CMP]], label [[FOR_END13:%.*]], label [[BB_NPH]]
; CHECK: for.end13:
; CHECK-NEXT: ret void
;
entry:
br label %bb.nph
bb.nph: ; preds = %entry, %for.inc10
%i.04 = phi i16 [ 0, %entry ], [ %inc12, %for.inc10 ]
br label %for.body5
for.body5: ; preds = %for.body5, %bb.nph
%j.02 = phi i16 [ 0, %bb.nph ], [ %inc, %for.body5 ]
%mul = mul nsw i16 %i.04, 100
%add = add nsw i16 %j.02, %mul
%arrayidx = getelementptr inbounds i8, ptr addrspace(2) %X, i16 %add
store i8 0, ptr addrspace(2) %arrayidx, align 1
%inc = add nsw i16 %j.02, 1
%cmp4 = icmp eq i16 %inc, 100
br i1 %cmp4, label %for.inc10, label %for.body5
for.inc10: ; preds = %for.body5
%inc12 = add nsw i16 %i.04, 1
%cmp = icmp eq i16 %inc12, 100
br i1 %cmp, label %for.end13, label %bb.nph
for.end13: ; preds = %for.inc10
ret void
}
define void @test11_pattern(ptr addrspace(2) nocapture %P) nounwind ssp {
; CHECK-LABEL: @test11_pattern(
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[FOR_BODY:%.*]]
; CHECK: for.body:
; CHECK-NEXT: [[INDVAR:%.*]] = phi i64 [ 0, [[ENTRY:%.*]] ], [ [[INDVAR_NEXT:%.*]], [[FOR_BODY]] ]
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr i32, ptr addrspace(2) [[P:%.*]], i64 [[INDVAR]]
; CHECK-NEXT: store i32 1, ptr addrspace(2) [[ARRAYIDX]], align 4
; CHECK-NEXT: [[INDVAR_NEXT]] = add i64 [[INDVAR]], 1
; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[INDVAR_NEXT]], 10000
; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_END:%.*]], label [[FOR_BODY]]
; CHECK: for.end:
; CHECK-NEXT: ret void
;
entry:
br label %for.body
for.body: ; preds = %entry, %for.body
%indvar = phi i64 [ 0, %entry ], [ %indvar.next, %for.body ]
%arrayidx = getelementptr i32, ptr addrspace(2) %P, i64 %indvar
store i32 1, ptr addrspace(2) %arrayidx, align 4
%indvar.next = add i64 %indvar, 1
%exitcond = icmp eq i64 %indvar.next, 10000
br i1 %exitcond, label %for.end, label %for.body
for.end: ; preds = %for.body
ret void
}
; PR9815 - This is a partial overlap case that cannot be safely transformed
; into a memcpy.
@g_50 = addrspace(2) global [7 x i32] [i32 0, i32 0, i32 0, i32 0, i32 1, i32 0, i32 0], align 16
define i32 @test14() nounwind {
; CHECK-LABEL: @test14(
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[FOR_BODY:%.*]]
; CHECK: for.body:
; CHECK-NEXT: [[TMP5:%.*]] = phi i32 [ [[INC:%.*]], [[FOR_BODY]] ], [ 0, [[ENTRY:%.*]] ]
; CHECK-NEXT: [[ADD:%.*]] = add nsw i32 [[TMP5]], 4
; CHECK-NEXT: [[IDXPROM:%.*]] = sext i32 [[ADD]] to i64
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds [7 x i32], ptr addrspace(2) @g_50, i32 0, i64 [[IDXPROM]]
; CHECK-NEXT: [[TMP2:%.*]] = load i32, ptr addrspace(2) [[ARRAYIDX]], align 4
; CHECK-NEXT: [[ADD4:%.*]] = add nsw i32 [[TMP5]], 5
; CHECK-NEXT: [[IDXPROM5:%.*]] = sext i32 [[ADD4]] to i64
; CHECK-NEXT: [[ARRAYIDX6:%.*]] = getelementptr inbounds [7 x i32], ptr addrspace(2) @g_50, i32 0, i64 [[IDXPROM5]]
; CHECK-NEXT: store i32 [[TMP2]], ptr addrspace(2) [[ARRAYIDX6]], align 4
; CHECK-NEXT: [[INC]] = add nsw i32 [[TMP5]], 1
; CHECK-NEXT: [[CMP:%.*]] = icmp slt i32 [[INC]], 2
; CHECK-NEXT: br i1 [[CMP]], label [[FOR_BODY]], label [[FOR_END:%.*]]
; CHECK: for.end:
; CHECK-NEXT: [[TMP8:%.*]] = load i32, ptr addrspace(2) getelementptr inbounds ([7 x i32], ptr addrspace(2) @g_50, i32 0, i64 6), align 4
; CHECK-NEXT: ret i32 [[TMP8]]
;
entry:
br label %for.body
for.body: ; preds = %for.inc, %for.body.lr.ph
%tmp5 = phi i32 [ %inc, %for.body ], [ 0, %entry ]
%add = add nsw i32 %tmp5, 4
%idxprom = sext i32 %add to i64
%arrayidx = getelementptr inbounds [7 x i32], ptr addrspace(2) @g_50, i32 0, i64 %idxprom
%tmp2 = load i32, ptr addrspace(2) %arrayidx, align 4
%add4 = add nsw i32 %tmp5, 5
%idxprom5 = sext i32 %add4 to i64
%arrayidx6 = getelementptr inbounds [7 x i32], ptr addrspace(2) @g_50, i32 0, i64 %idxprom5
store i32 %tmp2, ptr addrspace(2) %arrayidx6, align 4
%inc = add nsw i32 %tmp5, 1
%cmp = icmp slt i32 %inc, 2
br i1 %cmp, label %for.body, label %for.end
for.end: ; preds = %for.inc
%tmp8 = load i32, ptr addrspace(2) getelementptr inbounds ([7 x i32], ptr addrspace(2) @g_50, i32 0, i64 6), align 4
ret i32 %tmp8
}
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