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llvm-6502/test/CodeGen/Hexagon/hwloop-ne.ll

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Extend Hexagon hardware loop generation to handle various additional cases: - variety of compare instructions, - loops with no preheader, - arbitrary lower and upper bounds. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174904 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-11 21:37:55 +00:00
; RUN: llc -march=hexagon -mcpu=hexagonv4 -O3 < %s | FileCheck %s
; CHECK: test_pos1_ir_ne
; CHECK: loop0
; a < b
define void @test_pos1_ir_ne(i8* nocapture %p, i32 %a, i32 %b) nounwind {
entry:
%cmp3 = icmp slt i32 32623, %b
br i1 %cmp3, label %for.body.lr.ph, label %for.end
for.body.lr.ph: ; preds = %entry
br label %for.body
for.body: ; preds = %for.body.lr.ph, %for.body
%i.04 = phi i32 [ 32623, %for.body.lr.ph ], [ %inc, %for.body ]
%arrayidx = getelementptr inbounds i8* %p, i32 %i.04
%0 = load i8* %arrayidx, align 1
%conv = zext i8 %0 to i32
%add = add nsw i32 %conv, 1
%conv1 = trunc i32 %add to i8
store i8 %conv1, i8* %arrayidx, align 1
%inc = add nsw i32 %i.04, 1
%cmp = icmp ne i32 %inc, %b
br i1 %cmp, label %for.body, label %for.end
for.end: ; preds = %for.body, %entry
ret void
}
; CHECK: test_pos2_ir_ne
; CHECK: loop0
; a < b
define void @test_pos2_ir_ne(i8* nocapture %p, i32 %a, i32 %b) nounwind {
entry:
%cmp3 = icmp slt i32 29554, %b
br i1 %cmp3, label %for.body.lr.ph, label %for.end
for.body.lr.ph: ; preds = %entry
br label %for.body
for.body: ; preds = %for.body.lr.ph, %for.body
%i.04 = phi i32 [ 29554, %for.body.lr.ph ], [ %inc, %for.body ]
%arrayidx = getelementptr inbounds i8* %p, i32 %i.04
%0 = load i8* %arrayidx, align 1
%conv = zext i8 %0 to i32
%add = add nsw i32 %conv, 1
%conv1 = trunc i32 %add to i8
store i8 %conv1, i8* %arrayidx, align 1
%inc = add nsw i32 %i.04, 2
%cmp = icmp ne i32 %inc, %b
br i1 %cmp, label %for.body, label %for.end
for.end: ; preds = %for.body, %entry
ret void
}
; CHECK: test_pos4_ir_ne
; CHECK: loop0
; a < b
define void @test_pos4_ir_ne(i8* nocapture %p, i32 %a, i32 %b) nounwind {
entry:
%cmp3 = icmp slt i32 15692, %b
br i1 %cmp3, label %for.body.lr.ph, label %for.end
for.body.lr.ph: ; preds = %entry
br label %for.body
for.body: ; preds = %for.body.lr.ph, %for.body
%i.04 = phi i32 [ 15692, %for.body.lr.ph ], [ %inc, %for.body ]
%arrayidx = getelementptr inbounds i8* %p, i32 %i.04
%0 = load i8* %arrayidx, align 1
%conv = zext i8 %0 to i32
%add = add nsw i32 %conv, 1
%conv1 = trunc i32 %add to i8
store i8 %conv1, i8* %arrayidx, align 1
%inc = add nsw i32 %i.04, 4
%cmp = icmp ne i32 %inc, %b
br i1 %cmp, label %for.body, label %for.end
for.end: ; preds = %for.body, %entry
ret void
}
; CHECK: test_pos8_ir_ne
; CHECK: loop0
; a < b
define void @test_pos8_ir_ne(i8* nocapture %p, i32 %a, i32 %b) nounwind {
entry:
%cmp3 = icmp slt i32 10449, %b
br i1 %cmp3, label %for.body.lr.ph, label %for.end
for.body.lr.ph: ; preds = %entry
br label %for.body
for.body: ; preds = %for.body.lr.ph, %for.body
%i.04 = phi i32 [ 10449, %for.body.lr.ph ], [ %inc, %for.body ]
%arrayidx = getelementptr inbounds i8* %p, i32 %i.04
%0 = load i8* %arrayidx, align 1
%conv = zext i8 %0 to i32
%add = add nsw i32 %conv, 1
%conv1 = trunc i32 %add to i8
store i8 %conv1, i8* %arrayidx, align 1
%inc = add nsw i32 %i.04, 8
%cmp = icmp ne i32 %inc, %b
br i1 %cmp, label %for.body, label %for.end
for.end: ; preds = %for.body, %entry
ret void
}
; CHECK: test_pos16_ir_ne
; CHECK: loop0
; a < b
define void @test_pos16_ir_ne(i8* nocapture %p, i32 %a, i32 %b) nounwind {
entry:
%cmp3 = icmp slt i32 32087, %b
br i1 %cmp3, label %for.body.lr.ph, label %for.end
for.body.lr.ph: ; preds = %entry
br label %for.body
for.body: ; preds = %for.body.lr.ph, %for.body
%i.04 = phi i32 [ 32087, %for.body.lr.ph ], [ %inc, %for.body ]
%arrayidx = getelementptr inbounds i8* %p, i32 %i.04
%0 = load i8* %arrayidx, align 1
%conv = zext i8 %0 to i32
%add = add nsw i32 %conv, 1
%conv1 = trunc i32 %add to i8
store i8 %conv1, i8* %arrayidx, align 1
%inc = add nsw i32 %i.04, 16
%cmp = icmp ne i32 %inc, %b
br i1 %cmp, label %for.body, label %for.end
for.end: ; preds = %for.body, %entry
ret void
}
; CHECK: test_pos1_ri_ne
; CHECK: loop0
; a < b
define void @test_pos1_ri_ne(i8* nocapture %p, i32 %a, i32 %b) nounwind {
entry:
%cmp3 = icmp slt i32 %a, 3472
br i1 %cmp3, label %for.body.lr.ph, label %for.end
for.body.lr.ph: ; preds = %entry
br label %for.body
for.body: ; preds = %for.body.lr.ph, %for.body
%i.04 = phi i32 [ %a, %for.body.lr.ph ], [ %inc, %for.body ]
%arrayidx = getelementptr inbounds i8* %p, i32 %i.04
%0 = load i8* %arrayidx, align 1
%conv = zext i8 %0 to i32
%add = add nsw i32 %conv, 1
%conv1 = trunc i32 %add to i8
store i8 %conv1, i8* %arrayidx, align 1
%inc = add nsw i32 %i.04, 1
%cmp = icmp ne i32 %inc, 3472
br i1 %cmp, label %for.body, label %for.end
for.end: ; preds = %for.body, %entry
ret void
}
; CHECK: test_pos2_ri_ne
; CHECK: loop0
; a < b
define void @test_pos2_ri_ne(i8* nocapture %p, i32 %a, i32 %b) nounwind {
entry:
%cmp3 = icmp slt i32 %a, 8730
br i1 %cmp3, label %for.body.lr.ph, label %for.end
for.body.lr.ph: ; preds = %entry
br label %for.body
for.body: ; preds = %for.body.lr.ph, %for.body
%i.04 = phi i32 [ %a, %for.body.lr.ph ], [ %inc, %for.body ]
%arrayidx = getelementptr inbounds i8* %p, i32 %i.04
%0 = load i8* %arrayidx, align 1
%conv = zext i8 %0 to i32
%add = add nsw i32 %conv, 1
%conv1 = trunc i32 %add to i8
store i8 %conv1, i8* %arrayidx, align 1
%inc = add nsw i32 %i.04, 2
%cmp = icmp ne i32 %inc, 8730
br i1 %cmp, label %for.body, label %for.end
for.end: ; preds = %for.body, %entry
ret void
}
; CHECK: test_pos4_ri_ne
; CHECK: loop0
; a < b
define void @test_pos4_ri_ne(i8* nocapture %p, i32 %a, i32 %b) nounwind {
entry:
%cmp3 = icmp slt i32 %a, 1493
br i1 %cmp3, label %for.body.lr.ph, label %for.end
for.body.lr.ph: ; preds = %entry
br label %for.body
for.body: ; preds = %for.body.lr.ph, %for.body
%i.04 = phi i32 [ %a, %for.body.lr.ph ], [ %inc, %for.body ]
%arrayidx = getelementptr inbounds i8* %p, i32 %i.04
%0 = load i8* %arrayidx, align 1
%conv = zext i8 %0 to i32
%add = add nsw i32 %conv, 1
%conv1 = trunc i32 %add to i8
store i8 %conv1, i8* %arrayidx, align 1
%inc = add nsw i32 %i.04, 4
%cmp = icmp ne i32 %inc, 1493
br i1 %cmp, label %for.body, label %for.end
for.end: ; preds = %for.body, %entry
ret void
}
; CHECK: test_pos8_ri_ne
; CHECK: loop0
; a < b
define void @test_pos8_ri_ne(i8* nocapture %p, i32 %a, i32 %b) nounwind {
entry:
%cmp3 = icmp slt i32 %a, 1706
br i1 %cmp3, label %for.body.lr.ph, label %for.end
for.body.lr.ph: ; preds = %entry
br label %for.body
for.body: ; preds = %for.body.lr.ph, %for.body
%i.04 = phi i32 [ %a, %for.body.lr.ph ], [ %inc, %for.body ]
%arrayidx = getelementptr inbounds i8* %p, i32 %i.04
%0 = load i8* %arrayidx, align 1
%conv = zext i8 %0 to i32
%add = add nsw i32 %conv, 1
%conv1 = trunc i32 %add to i8
store i8 %conv1, i8* %arrayidx, align 1
%inc = add nsw i32 %i.04, 8
%cmp = icmp ne i32 %inc, 1706
br i1 %cmp, label %for.body, label %for.end
for.end: ; preds = %for.body, %entry
ret void
}
; CHECK: test_pos16_ri_ne
; CHECK: loop0
; a < b
define void @test_pos16_ri_ne(i8* nocapture %p, i32 %a, i32 %b) nounwind {
entry:
%cmp3 = icmp slt i32 %a, 1886
br i1 %cmp3, label %for.body.lr.ph, label %for.end
for.body.lr.ph: ; preds = %entry
br label %for.body
for.body: ; preds = %for.body.lr.ph, %for.body
%i.04 = phi i32 [ %a, %for.body.lr.ph ], [ %inc, %for.body ]
%arrayidx = getelementptr inbounds i8* %p, i32 %i.04
%0 = load i8* %arrayidx, align 1
%conv = zext i8 %0 to i32
%add = add nsw i32 %conv, 1
%conv1 = trunc i32 %add to i8
store i8 %conv1, i8* %arrayidx, align 1
%inc = add nsw i32 %i.04, 16
%cmp = icmp ne i32 %inc, 1886
br i1 %cmp, label %for.body, label %for.end
for.end: ; preds = %for.body, %entry
ret void
}
; CHECK: test_pos1_rr_ne
; CHECK: loop0
; a < b
define void @test_pos1_rr_ne(i8* nocapture %p, i32 %a, i32 %b) nounwind {
entry:
%cmp3 = icmp slt i32 %a, %b
br i1 %cmp3, label %for.body.lr.ph, label %for.end
for.body.lr.ph: ; preds = %entry
br label %for.body
for.body: ; preds = %for.body.lr.ph, %for.body
%i.04 = phi i32 [ %a, %for.body.lr.ph ], [ %inc, %for.body ]
%arrayidx = getelementptr inbounds i8* %p, i32 %i.04
%0 = load i8* %arrayidx, align 1
%conv = zext i8 %0 to i32
%add = add nsw i32 %conv, 1
%conv1 = trunc i32 %add to i8
store i8 %conv1, i8* %arrayidx, align 1
%inc = add nsw i32 %i.04, 1
%cmp = icmp ne i32 %inc, %b
br i1 %cmp, label %for.body, label %for.end
for.end: ; preds = %for.body, %entry
ret void
}
; CHECK: test_pos2_rr_ne
; CHECK: loop0
; a < b
define void @test_pos2_rr_ne(i8* nocapture %p, i32 %a, i32 %b) nounwind {
entry:
%cmp3 = icmp slt i32 %a, %b
br i1 %cmp3, label %for.body.lr.ph, label %for.end
for.body.lr.ph: ; preds = %entry
br label %for.body
for.body: ; preds = %for.body.lr.ph, %for.body
%i.04 = phi i32 [ %a, %for.body.lr.ph ], [ %inc, %for.body ]
%arrayidx = getelementptr inbounds i8* %p, i32 %i.04
%0 = load i8* %arrayidx, align 1
%conv = zext i8 %0 to i32
%add = add nsw i32 %conv, 1
%conv1 = trunc i32 %add to i8
store i8 %conv1, i8* %arrayidx, align 1
%inc = add nsw i32 %i.04, 2
%cmp = icmp ne i32 %inc, %b
br i1 %cmp, label %for.body, label %for.end
for.end: ; preds = %for.body, %entry
ret void
}
; CHECK: test_pos4_rr_ne
; CHECK: loop0
; a < b
define void @test_pos4_rr_ne(i8* nocapture %p, i32 %a, i32 %b) nounwind {
entry:
%cmp3 = icmp slt i32 %a, %b
br i1 %cmp3, label %for.body.lr.ph, label %for.end
for.body.lr.ph: ; preds = %entry
br label %for.body
for.body: ; preds = %for.body.lr.ph, %for.body
%i.04 = phi i32 [ %a, %for.body.lr.ph ], [ %inc, %for.body ]
%arrayidx = getelementptr inbounds i8* %p, i32 %i.04
%0 = load i8* %arrayidx, align 1
%conv = zext i8 %0 to i32
%add = add nsw i32 %conv, 1
%conv1 = trunc i32 %add to i8
store i8 %conv1, i8* %arrayidx, align 1
%inc = add nsw i32 %i.04, 4
%cmp = icmp ne i32 %inc, %b
br i1 %cmp, label %for.body, label %for.end
for.end: ; preds = %for.body, %entry
ret void
}
; CHECK: test_pos8_rr_ne
; CHECK: loop0
; a < b
define void @test_pos8_rr_ne(i8* nocapture %p, i32 %a, i32 %b) nounwind {
entry:
%cmp3 = icmp slt i32 %a, %b
br i1 %cmp3, label %for.body.lr.ph, label %for.end
for.body.lr.ph: ; preds = %entry
br label %for.body
for.body: ; preds = %for.body.lr.ph, %for.body
%i.04 = phi i32 [ %a, %for.body.lr.ph ], [ %inc, %for.body ]
%arrayidx = getelementptr inbounds i8* %p, i32 %i.04
%0 = load i8* %arrayidx, align 1
%conv = zext i8 %0 to i32
%add = add nsw i32 %conv, 1
%conv1 = trunc i32 %add to i8
store i8 %conv1, i8* %arrayidx, align 1
%inc = add nsw i32 %i.04, 8
%cmp = icmp ne i32 %inc, %b
br i1 %cmp, label %for.body, label %for.end
for.end: ; preds = %for.body, %entry
ret void
}
; CHECK: test_pos16_rr_ne
; CHECK: loop0
; a < b
define void @test_pos16_rr_ne(i8* nocapture %p, i32 %a, i32 %b) nounwind {
entry:
%cmp3 = icmp slt i32 %a, %b
br i1 %cmp3, label %for.body.lr.ph, label %for.end
for.body.lr.ph: ; preds = %entry
br label %for.body
for.body: ; preds = %for.body.lr.ph, %for.body
%i.04 = phi i32 [ %a, %for.body.lr.ph ], [ %inc, %for.body ]
%arrayidx = getelementptr inbounds i8* %p, i32 %i.04
%0 = load i8* %arrayidx, align 1
%conv = zext i8 %0 to i32
%add = add nsw i32 %conv, 1
%conv1 = trunc i32 %add to i8
store i8 %conv1, i8* %arrayidx, align 1
%inc = add nsw i32 %i.04, 16
%cmp = icmp ne i32 %inc, %b
br i1 %cmp, label %for.body, label %for.end
for.end: ; preds = %for.body, %entry
ret void
}
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