call-hoisting.ll
5.32 KB
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; RUN: opt -S -basic-aa -licm %s | FileCheck %s
; RUN: opt -aa-pipeline=basic-aa -passes='require<aa>,require<targetir>,require<scalar-evolution>,require<opt-remark-emit>,loop(licm)' < %s -S | FileCheck %s
declare i32 @load(i32* %p) argmemonly readonly nounwind
define void @test_load(i32* noalias %loc, i32* noalias %sink) {
; CHECK-LABEL: @test_load
; CHECK-LABEL: entry:
; CHECK: call i32 @load
; CHECK-LABEL: loop:
entry:
br label %loop
loop:
%iv = phi i32 [0, %entry], [%iv.next, %loop]
%ret = call i32 @load(i32* %loc)
store volatile i32 %ret, i32* %sink
%iv.next = add i32 %iv, 1
%cmp = icmp slt i32 %iv, 200
br i1 %cmp, label %loop, label %exit
exit:
ret void
}
declare void @store(i32 %val, i32* %p) argmemonly writeonly nounwind
define void @test(i32* %loc) {
; CHECK-LABEL: @test
; CHECK-LABEL: loop:
; CHECK: call void @store
; CHECK-LABEL: exit:
entry:
br label %loop
loop:
%iv = phi i32 [0, %entry], [%iv.next, %loop]
call void @store(i32 0, i32* %loc)
%iv.next = add i32 %iv, 1
%cmp = icmp slt i32 %iv, 200
br i1 %cmp, label %loop, label %exit
exit:
ret void
}
define void @test_multiexit(i32* %loc, i1 %earlycnd) {
; CHECK-LABEL: @test_multiexit
; CHECK-LABEL: loop:
; CHECK: call void @store
; CHECK-LABEL: backedge:
entry:
br label %loop
loop:
%iv = phi i32 [0, %entry], [%iv.next, %backedge]
call void @store(i32 0, i32* %loc)
%iv.next = add i32 %iv, 1
br i1 %earlycnd, label %exit1, label %backedge
backedge:
%cmp = icmp slt i32 %iv, 200
br i1 %cmp, label %loop, label %exit2
exit1:
ret void
exit2:
ret void
}
define void @neg_lv_value(i32* %loc) {
; CHECK-LABEL: @neg_lv_value
; CHECK-LABEL: loop:
; CHECK: call void @store
; CHECK-LABEL: exit:
entry:
br label %loop
loop:
%iv = phi i32 [0, %entry], [%iv.next, %loop]
call void @store(i32 %iv, i32* %loc)
%iv.next = add i32 %iv, 1
%cmp = icmp slt i32 %iv, 200
br i1 %cmp, label %loop, label %exit
exit:
ret void
}
define void @neg_lv_addr(i32* %loc) {
; CHECK-LABEL: @neg_lv_addr
; CHECK-LABEL: loop:
; CHECK: call void @store
; CHECK-LABEL: exit:
entry:
br label %loop
loop:
%iv = phi i32 [0, %entry], [%iv.next, %loop]
%p = getelementptr i32, i32* %loc, i32 %iv
call void @store(i32 0, i32* %p)
%iv.next = add i32 %iv, 1
%cmp = icmp slt i32 %iv, 200
br i1 %cmp, label %loop, label %exit
exit:
ret void
}
define void @neg_mod(i32* %loc) {
; CHECK-LABEL: @neg_mod
; CHECK-LABEL: loop:
; CHECK: call void @store
; CHECK-LABEL: exit:
entry:
br label %loop
loop:
%iv = phi i32 [0, %entry], [%iv.next, %loop]
call void @store(i32 0, i32* %loc)
store i32 %iv, i32* %loc
%iv.next = add i32 %iv, 1
%cmp = icmp slt i32 %iv, 200
br i1 %cmp, label %loop, label %exit
exit:
ret void
}
define void @neg_ref(i32* %loc) {
; CHECK-LABEL: @neg_ref
; CHECK-LABEL: loop:
; CHECK: call void @store
; CHECK-LABEL: exit1:
entry:
br label %loop
loop:
%iv = phi i32 [0, %entry], [%iv.next, %backedge]
call void @store(i32 0, i32* %loc)
%v = load i32, i32* %loc
%earlycnd = icmp eq i32 %v, 198
br i1 %earlycnd, label %exit1, label %backedge
backedge:
%iv.next = add i32 %iv, 1
%cmp = icmp slt i32 %iv, 200
br i1 %cmp, label %loop, label %exit2
exit1:
ret void
exit2:
ret void
}
declare void @modref()
define void @neg_modref(i32* %loc) {
; CHECK-LABEL: @neg_modref
; CHECK-LABEL: loop:
; CHECK: call void @store
; CHECK-LABEL: exit:
entry:
br label %loop
loop:
%iv = phi i32 [0, %entry], [%iv.next, %loop]
call void @store(i32 0, i32* %loc)
call void @modref()
%iv.next = add i32 %iv, 1
%cmp = icmp slt i32 %iv, 200
br i1 %cmp, label %loop, label %exit
exit:
ret void
}
define void @neg_fence(i32* %loc) {
; CHECK-LABEL: @neg_fence
; CHECK-LABEL: loop:
; CHECK: call void @store
; CHECK-LABEL: exit:
entry:
br label %loop
loop:
%iv = phi i32 [0, %entry], [%iv.next, %loop]
call void @store(i32 0, i32* %loc)
fence seq_cst
%iv.next = add i32 %iv, 1
%cmp = icmp slt i32 %iv, 200
br i1 %cmp, label %loop, label %exit
exit:
ret void
}
declare void @not_nounwind(i32 %v, i32* %p) writeonly argmemonly
declare void @not_argmemonly(i32 %v, i32* %p) writeonly nounwind
declare void @not_writeonly(i32 %v, i32* %p) argmemonly nounwind
define void @neg_not_nounwind(i32* %loc) {
; CHECK-LABEL: @neg_not_nounwind
; CHECK-LABEL: loop:
; CHECK: call void @not_nounwind
; CHECK-LABEL: exit:
entry:
br label %loop
loop:
%iv = phi i32 [0, %entry], [%iv.next, %loop]
call void @not_nounwind(i32 0, i32* %loc)
%iv.next = add i32 %iv, 1
%cmp = icmp slt i32 %iv, 200
br i1 %cmp, label %loop, label %exit
exit:
ret void
}
define void @neg_not_argmemonly(i32* %loc) {
; CHECK-LABEL: @neg_not_argmemonly
; CHECK-LABEL: loop:
; CHECK: call void @not_argmemonly
; CHECK-LABEL: exit:
entry:
br label %loop
loop:
%iv = phi i32 [0, %entry], [%iv.next, %loop]
call void @not_argmemonly(i32 0, i32* %loc)
%iv.next = add i32 %iv, 1
%cmp = icmp slt i32 %iv, 200
br i1 %cmp, label %loop, label %exit
exit:
ret void
}
define void @neg_not_writeonly(i32* %loc) {
; CHECK-LABEL: @neg_not_writeonly
; CHECK-LABEL: loop:
; CHECK: call void @not_writeonly
; CHECK-LABEL: exit:
entry:
br label %loop
loop:
%iv = phi i32 [0, %entry], [%iv.next, %loop]
call void @not_writeonly(i32 0, i32* %loc)
%iv.next = add i32 %iv, 1
%cmp = icmp slt i32 %iv, 200
br i1 %cmp, label %loop, label %exit
exit:
ret void
}