forked from OSchip/llvm-project
136 lines
3.8 KiB
LLVM
136 lines
3.8 KiB
LLVM
; RUN: opt -S -loop-vectorize -force-vector-interleave=1 -force-vector-width=2 < %s | FileCheck %s
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; CHECK-LABEL: @postinc
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; CHECK-LABEL: scalar.ph:
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; CHECK: %bc.resume.val = phi i32 [ %n.vec, %middle.block ], [ 0, %entry ]
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; CHECK-LABEL: for.end:
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; CHECK: %[[RET:.*]] = phi i32 [ {{.*}}, %for.body ], [ %n.vec, %middle.block ]
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; CHECK: ret i32 %[[RET]]
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define i32 @postinc(i32 %k) {
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entry:
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br label %for.body
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for.body:
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%inc.phi = phi i32 [ 0, %entry ], [ %inc, %for.body ]
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%inc = add nsw i32 %inc.phi, 1
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%cmp = icmp eq i32 %inc, %k
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br i1 %cmp, label %for.end, label %for.body
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for.end:
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ret i32 %inc
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}
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; CHECK-LABEL: @preinc
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; CHECK-LABEL: middle.block:
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; CHECK: %[[v3:.+]] = sub i32 %n.vec, 1
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; CHECK: %ind.escape = add i32 0, %[[v3]]
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; CHECK-LABEL: scalar.ph:
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; CHECK: %bc.resume.val = phi i32 [ %n.vec, %middle.block ], [ 0, %entry ]
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; CHECK-LABEL: for.end:
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; CHECK: %[[RET:.*]] = phi i32 [ {{.*}}, %for.body ], [ %ind.escape, %middle.block ]
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; CHECK: ret i32 %[[RET]]
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define i32 @preinc(i32 %k) {
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entry:
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br label %for.body
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for.body:
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%inc.phi = phi i32 [ 0, %entry ], [ %inc, %for.body ]
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%inc = add nsw i32 %inc.phi, 1
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%cmp = icmp eq i32 %inc, %k
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br i1 %cmp, label %for.end, label %for.body
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for.end:
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ret i32 %inc.phi
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}
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; CHECK-LABEL: @constpre
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; CHECK-LABEL: for.end:
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; CHECK: %[[RET:.*]] = phi i32 [ {{.*}}, %for.body ], [ 2, %middle.block ]
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; CHECK: ret i32 %[[RET]]
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define i32 @constpre() {
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entry:
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br label %for.body
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for.body:
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%inc.phi = phi i32 [ 32, %entry ], [ %inc, %for.body ]
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%inc = sub nsw i32 %inc.phi, 2
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%cmp = icmp eq i32 %inc, 0
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br i1 %cmp, label %for.end, label %for.body
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for.end:
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ret i32 %inc.phi
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}
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; CHECK-LABEL: @geppre
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; CHECK-LABEL: middle.block:
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; CHECK: %ind.escape = getelementptr i32, i32* %ptr, i64 124
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; CHECK-LABEL: for.end:
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; CHECK: %[[RET:.*]] = phi i32* [ {{.*}}, %for.body ], [ %ind.escape, %middle.block ]
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; CHECK: ret i32* %[[RET]]
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define i32* @geppre(i32* %ptr) {
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entry:
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br label %for.body
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for.body:
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%inc.phi = phi i32 [ 0, %entry ], [ %inc, %for.body ]
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%ptr.phi = phi i32* [ %ptr, %entry ], [ %inc.ptr, %for.body ]
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%inc = add nsw i32 %inc.phi, 1
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%inc.ptr = getelementptr i32, i32* %ptr.phi, i32 4
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%cmp = icmp eq i32 %inc, 32
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br i1 %cmp, label %for.end, label %for.body
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for.end:
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ret i32* %ptr.phi
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}
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; CHECK-LABEL: @both
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; CHECK-LABEL: middle.block:
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; CHECK: %[[END:.*]] = sub i64 %n.vec, 1
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; CHECK: %ind.escape = getelementptr i32, i32* %base, i64 %[[END]]
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; CHECK-LABEL: for.end:
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; CHECK: %[[RET:.*]] = phi i32* [ %inc.lag1, %for.body ], [ %ind.escape, %middle.block ]
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; CHECK: ret i32* %[[RET]]
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define i32* @both(i32 %k) {
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entry:
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%base = getelementptr inbounds i32, i32* undef, i64 1
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br label %for.body
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for.body:
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%inc.phi = phi i32 [ 0, %entry ], [ %inc, %for.body ]
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%inc.lag1 = phi i32* [ %base, %entry ], [ %tmp, %for.body]
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%inc.lag2 = phi i32* [ undef, %entry ], [ %inc.lag1, %for.body]
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%tmp = getelementptr inbounds i32, i32* %inc.lag1, i64 1
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%inc = add nsw i32 %inc.phi, 1
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%cmp = icmp eq i32 %inc, %k
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br i1 %cmp, label %for.end, label %for.body
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for.end:
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ret i32* %inc.lag1
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}
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; CHECK-LABEL: @multiphi
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; CHECK-LABEL: scalar.ph:
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; CHECK: %bc.resume.val = phi i32 [ %n.vec, %middle.block ], [ 0, %entry ]
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; CHECK-LABEL: for.end:
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; CHECK: %phi = phi i32 [ {{.*}}, %for.body ], [ %n.vec, %middle.block ]
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; CHECK: %phi2 = phi i32 [ {{.*}}, %for.body ], [ %n.vec, %middle.block ]
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; CHECK: store i32 %phi2, i32* %p
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; CHECK: ret i32 %phi
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define i32 @multiphi(i32 %k, i32* %p) {
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entry:
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br label %for.body
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for.body:
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%inc.phi = phi i32 [ 0, %entry ], [ %inc, %for.body ]
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%inc = add nsw i32 %inc.phi, 1
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%cmp = icmp eq i32 %inc, %k
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br i1 %cmp, label %for.end, label %for.body
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for.end:
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%phi = phi i32 [ %inc, %for.body ]
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%phi2 = phi i32 [ %inc, %for.body ]
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store i32 %phi2, i32* %p
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ret i32 %phi
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}
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