forked from OSchip/llvm-project
104 lines
3.0 KiB
LLVM
104 lines
3.0 KiB
LLVM
; RUN: opt %loadPolly -polly-print-scops -disable-output < %s | FileCheck %s
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; RUN: opt %loadPolly -polly-codegen -S < %s | FileCheck %s --check-prefix=IR
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;
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; The SCoP contains a loop with multiple exit blocks (BBs after leaving
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; the loop). The current implementation of deriving their domain derives
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; only a common domain for all of the exit blocks. We disabled loops with
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; multiple exit blocks until this is fixed.
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; XFAIL: *
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;
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; Check that we do not crash and generate valid IR.
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;
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; CHECK: Assumed Context:
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; CHECK-NEXT: [count1, dobreak, count2] -> { : }
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; CHECK-NEXT: Invalid Context:
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; CHECK-NEXT: [count1, dobreak, count2] -> { : (count1 > 0 and dobreak > 0) or count1 <= 0 or (count1 > 0 and dobreak <= 0 and count2 > 0) }
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;
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; CHECK: Stmt_loop_enter
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; CHECK-NEXT: Domain :=
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; CHECK-NEXT: [count1, dobreak, count2] -> { Stmt_loop_enter[] : count1 > 0 };
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; CHECK: Stmt_loop_break
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; CHECK-NEXT: Domain :=
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; CHECK-NEXT: [count1, dobreak, count2] -> { Stmt_loop_break[] : count1 > 0 and dobreak > 0 };
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; CHECK: Stmt_loop_finish
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; CHECK-NEXT: Domain :=
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; CHECK-NEXT: [count1, dobreak, count2] -> { Stmt_loop_finish[] : count1 > 0 and dobreak <= 0 and count2 > 0 };
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; CHECK: Stmt_loop_skip
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; CHECK-NEXT: Domain :=
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; CHECK-NEXT: [count1, dobreak, count2] -> { Stmt_loop_skip[] : count1 <= 0 };
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; IR: polly.merge_new_and_old:
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; IR-NEXT: %phi.ph.merge = phi float [ %phi.ph.final_reload, %polly.exiting ], [ %phi.ph, %return.region_exiting ]
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; IR-NEXT: br label %return
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;
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; IR: return:
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; IR-NEXT: %phi = phi float [ %phi.ph.merge, %polly.merge_new_and_old ]
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declare void @g();
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define void @func(i64 %count1, i64 %count2, i32 %dobreak, float* %A) {
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entry:
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%fadd = fadd float undef, undef
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br label %loopguard
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loopguard:
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%cmp6 = icmp sgt i64 %count1, 0
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br i1 %cmp6, label %loop_enter, label %loop_skip
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loop_enter:
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store float 1.0, float* %A
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br label %loop_header
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loop_header:
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%indvars.iv63 = phi i64 [ %indvars.iv.next64, %loop_continue ], [ 0, %loop_enter ]
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%indvars.iv.next64 = add nuw nsw i64 %indvars.iv63, 1
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%add8 = add i64 undef, undef
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%cmp_break = icmp sge i32 %dobreak, 1
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br i1 %cmp_break, label %loop_break, label %loop_continue
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loop_continue:
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%cmp9 = icmp eq i64 %indvars.iv.next64, %count2
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br i1 %cmp9, label %loop_finish, label %loop_header
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loop_break:
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store float 2.0, float* %A
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br label %loop_break_error
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loop_break_error:
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%cmp_loop_break = fcmp oeq float %fadd, 2.
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br i1 %cmp_loop_break, label %loop_break_g, label %return
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loop_break_g:
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call void @g()
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br label %return
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loop_finish:
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store float 3.0, float* %A
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br label %loop_finish_error
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loop_finish_error:
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call void @g()
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br label %return
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loop_skip:
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store float 4.0, float* %A
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br label %loop_skip_error
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loop_skip_error:
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call void @g()
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br label %return
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return:
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%phi = phi float [ 0.0, %loop_finish_error ], [ 0.0, %loop_break_error ], [ 2.0, %loop_break_g ], [ 3.0, %loop_skip_error ]
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store float 1.0, float* %A
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ret void
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}
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