forked from OSchip/llvm-project
34 lines
1.1 KiB
LLVM
34 lines
1.1 KiB
LLVM
; RUN: opt %loadPolly -polly-codegen -S < %s | FileCheck %s
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;
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; This caused the code generation to generate invalid code as the same BBMap was
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; used for the whole non-affine region. When %add is synthesized for the
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; incoming value of subregion_if first, the code for it was generated into
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; subregion_if, but reused for the incoming value of subregion_exit, although it
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; is not dominated by subregion_if.
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;
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; CHECK-LABEL: polly.stmt.subregion_entry:
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; CHECK: %[[R0:[0-9]*]] = add i32 %n, -2
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;
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; CHECK-LABEL: polly.stmt.subregion_if:
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; CHECK: %[[R1:[0-9]*]] = add i32 %n, -2
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;
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; CHECK-LABEL: polly.stmt.subregion_exit.region_exiting:
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; CHECK: %polly.retval = phi i32 [ %[[R1]], %polly.stmt.subregion_if ], [ %[[R0]], %polly.stmt.subregion_entry ]
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define i32 @func(i32 %n){
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entry:
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br label %subregion_entry
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subregion_entry:
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%add = add nsw i32 %n, -2
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%cmp = fcmp ogt float undef, undef
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br i1 %cmp, label %subregion_if, label %subregion_exit
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subregion_if:
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br label %subregion_exit
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subregion_exit:
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%retval = phi i32 [ %add, %subregion_if ], [ %add, %subregion_entry ]
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ret i32 %retval
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}
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