; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -O3 -mtriple=x86_64-- -mcpu=core2 | FileCheck %s
declare i1 @check() nounwind
declare i1 @foo(i8*, i8*, i8*) nounwind
; Check that redundant phi elimination ran
define i32 @test(i8* %base) nounwind uwtable ssp {
; CHECK-LABEL: test:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: pushq %r15
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: pushq %r14
; CHECK-NEXT: .cfi_def_cfa_offset 24
; CHECK-NEXT: pushq %r13
; CHECK-NEXT: .cfi_def_cfa_offset 32
; CHECK-NEXT: pushq %r12
; CHECK-NEXT: .cfi_def_cfa_offset 40
; CHECK-NEXT: pushq %rbx
; CHECK-NEXT: .cfi_def_cfa_offset 48
; CHECK-NEXT: .cfi_offset %rbx, -48
; CHECK-NEXT: .cfi_offset %r12, -40
; CHECK-NEXT: .cfi_offset %r13, -32
; CHECK-NEXT: .cfi_offset %r14, -24
; CHECK-NEXT: .cfi_offset %r15, -16
; CHECK-NEXT: movq %rdi, %r14
; CHECK-NEXT: leaq 16(%rdi), %r15
; CHECK-NEXT: movl $16, %eax
; CHECK-NEXT: xorl %r12d, %r12d
; CHECK-NEXT: .p2align 4, 0x90
; CHECK-NEXT: .LBB0_1: # %while.body.i
; CHECK-NEXT: # =>This Loop Header: Depth=1
; CHECK-NEXT: # Child Loop BB0_2 Depth 2
; CHECK-NEXT: movslq %r12d, %r13
; CHECK-NEXT: movq %rax, %r12
; CHECK-NEXT: leaq (%r15,%r13), %rbx
; CHECK-NEXT: addq $16, %r13
; CHECK-NEXT: .p2align 4, 0x90
; CHECK-NEXT: .LBB0_2: # %for.body.i
; CHECK-NEXT: # Parent Loop BB0_1 Depth=1
; CHECK-NEXT: # => This Inner Loop Header: Depth=2
; CHECK-NEXT: callq check@PLT
; CHECK-NEXT: incq %rbx
; CHECK-NEXT: testb $1, %al
; CHECK-NEXT: je .LBB0_2
; CHECK-NEXT: # %bb.3: # %for.end.i
; CHECK-NEXT: # in Loop: Header=BB0_1 Depth=1
; CHECK-NEXT: addq %r14, %r13
; CHECK-NEXT: movq %r13, %rdi
; CHECK-NEXT: movq %r13, %rsi
; CHECK-NEXT: callq foo@PLT
; CHECK-NEXT: testb $1, %al
; CHECK-NEXT: je .LBB0_5
; CHECK-NEXT: # %bb.4: # %cond.true29.i
; CHECK-NEXT: # in Loop: Header=BB0_1 Depth=1
; CHECK-NEXT: leaq 16(%r12), %rax
; CHECK-NEXT: jmp .LBB0_1
; CHECK-NEXT: .LBB0_5: # %cond.false35.i
entry:
br label %while.body.lr.ph.i
while.body.lr.ph.i: ; preds = %cond.true.i
br label %while.body.i
while.body.i: ; preds = %cond.true29.i, %while.body.lr.ph.i
%indvars.iv7.i = phi i64 [ 16, %while.body.lr.ph.i ], [ %indvars.iv.next8.i, %cond.true29.i ]
%i.05.i = phi i64 [ 0, %while.body.lr.ph.i ], [ %indvars.iv7.i, %cond.true29.i ]
%sext.i = shl i64 %i.05.i, 32
%idx.ext.i = ashr exact i64 %sext.i, 32
%add.ptr.sum.i = add i64 %idx.ext.i, 16
br label %for.body.i
for.body.i: ; preds = %for.body.i, %while.body.i
%indvars.iv.i = phi i64 [ 0, %while.body.i ], [ %indvars.iv.next.i, %for.body.i ]
%add.ptr.sum = add i64 %add.ptr.sum.i, %indvars.iv.i
%arrayidx22.i = getelementptr inbounds i8, i8* %base, i64 %add.ptr.sum
%0 = load i8, i8* %arrayidx22.i, align 1
%indvars.iv.next.i = add i64 %indvars.iv.i, 1
%cmp = call i1 @check() nounwind
br i1 %cmp, label %for.end.i, label %for.body.i
for.end.i: ; preds = %for.body.i
%add.ptr.i144 = getelementptr inbounds i8, i8* %base, i64 %add.ptr.sum.i
%cmp2 = tail call i1 @foo(i8* %add.ptr.i144, i8* %add.ptr.i144, i8* undef) nounwind
br i1 %cmp2, label %cond.true29.i, label %cond.false35.i
cond.true29.i: ; preds = %for.end.i
%indvars.iv.next8.i = add i64 %indvars.iv7.i, 16
br i1 false, label %exit, label %while.body.i
cond.false35.i: ; preds = %for.end.i
unreachable
exit: ; preds = %cond.true29.i, %cond.true.i
ret i32 0
}
%struct.anon.7.91.199.307.415.475.559.643.751.835.943.1003.1111.1219.1351.1375.1399.1435.1471.1483.1519.1531.1651.1771 = type { i32, i32, i32 }
@tags = external global [5000 x %struct.anon.7.91.199.307.415.475.559.643.751.835.943.1003.1111.1219.1351.1375.1399.1435.1471.1483.1519.1531.1651.1771], align 16
; PR11782: SCEVExpander assert
;
; Test phi reuse after LSR that requires SCEVExpander to hoist an
; interesting GEP.
;
define void @test2(i32 %n) nounwind uwtable {
; CHECK-LABEL: test2:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: xorl %eax, %eax
; CHECK-NEXT: testb %al, %al
; CHECK-NEXT: je .LBB1_1
; CHECK-NEXT: # %bb.3: # %while.end
; CHECK-NEXT: retq
; CHECK-NEXT: .LBB1_1: # %for.cond468.preheader
; CHECK-NEXT: cmpl $2, %edi
; CHECK-NEXT: .p2align 4, 0x90
; CHECK-NEXT: .LBB1_2: # %for.inc498
; CHECK-NEXT: # =>This Inner Loop Header: Depth=1
; CHECK-NEXT: jmp .LBB1_2
entry:
br i1 undef, label %while.end, label %for.cond468
for.cond468: ; preds = %if.then477, %entry
%indvars.iv1163 = phi i64 [ %indvars.iv.next1164, %if.then477 ], [ 1, %entry ]
%k.0.in = phi i32* [ %last, %if.then477 ], [ getelementptr inbounds ([5000 x %struct.anon.7.91.199.307.415.475.559.643.751.835.943.1003.1111.1219.1351.1375.1399.1435.1471.1483.1519.1531.1651.1771], [5000 x %struct.anon.7.91.199.307.415.475.559.643.751.835.943.1003.1111.1219.1351.1375.1399.1435.1471.1483.1519.1531.1651.1771]* @tags, i64 0, i64 0, i32 2), %entry ]
%k.0 = load i32, i32* %k.0.in, align 4
%0 = trunc i64 %indvars.iv1163 to i32
%cmp469 = icmp slt i32 %0, %n
br i1 %cmp469, label %for.body471, label %for.inc498
for.body471: ; preds = %for.cond468
%first = getelementptr inbounds [5000 x %struct.anon.7.91.199.307.415.475.559.643.751.835.943.1003.1111.1219.1351.1375.1399.1435.1471.1483.1519.1531.1651.1771], [5000 x %struct.anon.7.91.199.307.415.475.559.643.751.835.943.1003.1111.1219.1351.1375.1399.1435.1471.1483.1519.1531.1651.1771]* @tags, i64 0, i64 %indvars.iv1163, i32 1
%1 = load i32, i32* %first, align 4
br i1 undef, label %if.then477, label %for.inc498
if.then477: ; preds = %for.body471
%last = getelementptr inbounds [5000 x %struct.anon.7.91.199.307.415.475.559.643.751.835.943.1003.1111.1219.1351.1375.1399.1435.1471.1483.1519.1531.1651.1771], [5000 x %struct.anon.7.91.199.307.415.475.559.643.751.835.943.1003.1111.1219.1351.1375.1399.1435.1471.1483.1519.1531.1651.1771]* @tags, i64 0, i64 %indvars.iv1163, i32 2
%indvars.iv.next1164 = add i64 %indvars.iv1163, 1
br label %for.cond468
for.inc498: ; preds = %for.inc498, %for.body471, %for.cond468
br label %for.inc498
while.end: ; preds = %entry
ret void
}
; PR12898: SCEVExpander crash
; Test redundant phi elimination when the deleted phi's increment is
; itself a phi.
;
define fastcc void @test3(double* nocapture %u) nounwind uwtable ssp {
; CHECK-LABEL: test3:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: xorl %eax, %eax
; CHECK-NEXT: testb %al, %al
; CHECK-NEXT: jne .LBB2_6
; CHECK-NEXT: # %bb.1:
; CHECK-NEXT: xorl %eax, %eax
; CHECK-NEXT: .p2align 4, 0x90
; CHECK-NEXT: .LBB2_2: # %meshBB1
; CHECK-NEXT: # =>This Loop Header: Depth=1
; CHECK-NEXT: # Child Loop BB2_4 Depth 2
; CHECK-NEXT: # implicit-def: $rcx
; CHECK-NEXT: testb %al, %al
; CHECK-NEXT: jne .LBB2_2
; CHECK-NEXT: .p2align 4, 0x90
; CHECK-NEXT: .LBB2_4: # %meshBB
; CHECK-NEXT: # Parent Loop BB2_2 Depth=1
; CHECK-NEXT: # => This Inner Loop Header: Depth=2
; CHECK-NEXT: incq %rcx
; CHECK-NEXT: testb %al, %al
; CHECK-NEXT: je .LBB2_4
; CHECK-NEXT: jmp .LBB2_2
; CHECK-NEXT: .LBB2_6: # %meshBB5
; CHECK-NEXT: xorl %eax, %eax
; CHECK-NEXT: testb %al, %al
; CHECK-NEXT: je .LBB2_5
; CHECK-NEXT: # %bb.7: # %eval_At_times_u.exit
; CHECK-NEXT: retq
; CHECK-NEXT: .LBB2_5: # %for.inc8.us.i2
entry:
br i1 undef, label %meshBB1, label %meshBB5
for.inc8.us.i: ; preds = %for.body3.us.i
br i1 undef, label %meshBB1, label %meshBB
for.body3.us.i: ; preds = %meshBB, %for.body3.lr.ph.us.i
%indvars.iv.i.SV.phi = phi i64 [ %indvars.iv.next.i, %meshBB ], [ 0, %for.body3.lr.ph.us.i ]
%storemerge13.us.i.SV.phi = phi i32 [ 0, %meshBB ], [ 0, %for.body3.lr.ph.us.i ]
%Opq.sa.calc12 = sub i32 undef, 227
%0 = add nsw i64 %indvars.iv.i.SV.phi, %indvars.iv8.i.SV.phi26
%1 = trunc i64 %0 to i32
%mul.i.us.i = mul nsw i32 0, %1
%arrayidx5.us.i = getelementptr inbounds double, double* %u, i64 %indvars.iv.i.SV.phi
%2 = load double, double* %arrayidx5.us.i, align 8
%indvars.iv.next.i = add i64 %indvars.iv.i.SV.phi, 1
br i1 undef, label %for.inc8.us.i, label %meshBB
for.body3.lr.ph.us.i: ; preds = %meshBB1, %meshBB
%indvars.iv8.i.SV.phi26 = phi i64 [ undef, %meshBB1 ], [ %indvars.iv8.i.SV.phi24, %meshBB ]
%arrayidx.us.i = getelementptr inbounds double, double* undef, i64 %indvars.iv8.i.SV.phi26
%3 = add i64 %indvars.iv8.i.SV.phi26, 1
br label %for.body3.us.i
for.inc8.us.i2: ; preds = %meshBB5
unreachable
eval_At_times_u.exit: ; preds = %meshBB5
ret void
meshBB: ; preds = %for.body3.us.i, %for.inc8.us.i
%indvars.iv8.i.SV.phi24 = phi i64 [ undef, %for.body3.us.i ], [ %3, %for.inc8.us.i ]
%meshStackVariable.phi = phi i32 [ %Opq.sa.calc12, %for.body3.us.i ], [ undef, %for.inc8.us.i ]
br i1 undef, label %for.body3.lr.ph.us.i, label %for.body3.us.i
meshBB1: ; preds = %for.inc8.us.i, %entry
br label %for.body3.lr.ph.us.i
meshBB5: ; preds = %entry
br i1 undef, label %eval_At_times_u.exit, label %for.inc8.us.i2
}