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Intervals are overlapping #101859

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DianQK opened this issue Aug 4, 2024 · 0 comments · Fixed by #101860
Closed

Intervals are overlapping #101859

DianQK opened this issue Aug 4, 2024 · 0 comments · Fixed by #101860
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@DianQK
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llvm:ir

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@DianQK
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DianQK commented Aug 4, 2024

I tried the following IR:

define i8 @foo(ptr %arg, i8 %arg1) {
bb:
  %i = load i8, ptr %arg, align 1, !range !{i8 127, i8 -20}
  %i2 = load i8, ptr %arg, align 1, !range !{i8 -27, i8 -24, i8 -20, i8 -17}
  %i3 = add i8 %i, %i2
  ret i8 %i3
}

I expected a successful optimization, but I encountered a validation error:

Intervals are overlapping
!0 = !{i8 -27, i8 -24, i8 127, i8 -17}
LLVM ERROR: Broken module found, compilation aborted!

https://llvm.godbolt.org/z/33nd1fxnv
@DianQK DianQK self-assigned this Aug 4, 2024
This was referenced Aug 4, 2024
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@DianQK DianQK closed this as completed in 4377656 Aug 4, 2024
llvmbot pushed a commit to llvmbot/llvm-project that referenced this issue Aug 4, 2024
@DianQK @llvmbot
[Metadata] Try to merge the first and last ranges. (llvm#101860)
edbf561 
Fixes llvm#101859.

If we have at least 2 ranges, we have to try to merge the last and first
ones to handle the wrap range.

(cherry picked from commit 4377656)
tru pushed a commit to llvmbot/llvm-project that referenced this issue Aug 5, 2024
@DianQK @tru
[Metadata] Try to merge the first and last ranges. (llvm#101860)
1069d16 
Fixes llvm#101859.

If we have at least 2 ranges, we have to try to merge the last and first
ones to handle the wrap range.

(cherry picked from commit 4377656)
banach-space pushed a commit to banach-space/llvm-project that referenced this issue Aug 7, 2024
@DianQK @banach-space
[Metadata] Try to merge the first and last ranges. (llvm#101860)
82c63ca 
Fixes llvm#101859.

If we have at least 2 ranges, we have to try to merge the last and first
ones to handle the wrap range.
kstoimenov pushed a commit to kstoimenov/llvm-project that referenced this issue Aug 15, 2024
@DianQK @kstoimenov
[Metadata] Try to merge the first and last ranges. (llvm#101860)
d71816c 
Fixes llvm#101859.

If we have at least 2 ranges, we have to try to merge the last and first
ones to handle the wrap range.
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[Metadata] Try to merge the first and last ranges. DianQK/llvm-project
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@EugeneZelenko @DianQK