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[VectorCombine][X86] Add initial shuffle-of-shuffles.ll test cover fo…
…r #88743
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llvm/test/Transforms/VectorCombine/X86/shuffle-of-shuffles.ll
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| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4 | ||
| ; RUN: opt < %s -passes=vector-combine -S -mtriple=x86_64-- -mattr=sse2 | FileCheck %s | ||
| ; RUN: opt < %s -passes=vector-combine -S -mtriple=x86_64-- -mattr=avx2 | FileCheck %s | ||
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| ; TODO: fold to identity | ||
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| define <8 x i32> @concat_extract_subvectors(<8 x i32> %x) { | ||
| ; CHECK-LABEL: define <8 x i32> @concat_extract_subvectors( | ||
| ; CHECK-SAME: <8 x i32> [[X:%.*]]) #[[ATTR0:[0-9]+]] { | ||
| ; CHECK-NEXT: [[LO:%.*]] = shufflevector <8 x i32> [[X]], <8 x i32> poison, <4 x i32> <i32 0, i32 1, i32 2, i32 3> | ||
| ; CHECK-NEXT: [[HI:%.*]] = shufflevector <8 x i32> [[X]], <8 x i32> poison, <4 x i32> <i32 4, i32 5, i32 6, i32 7> | ||
| ; CHECK-NEXT: [[CONCAT:%.*]] = shufflevector <4 x i32> [[LO]], <4 x i32> [[HI]], <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7> | ||
| ; CHECK-NEXT: ret <8 x i32> [[CONCAT]] | ||
| ; | ||
| %lo = shufflevector <8 x i32> %x, <8 x i32> poison, <4 x i32> <i32 0, i32 1, i32 2, i32 3> | ||
| %hi = shufflevector <8 x i32> %x, <8 x i32> poison, <4 x i32> <i32 4, i32 5, i32 6, i32 7> | ||
| %concat = shufflevector <4 x i32> %lo, <4 x i32> %hi, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7> | ||
| ret <8 x i32> %concat | ||
| } | ||
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| ; negative test - shuffle contains undef | ||
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| define <8 x i32> @concat_extract_subvectors_undef(<8 x i32> %x) { | ||
| ; CHECK-LABEL: define <8 x i32> @concat_extract_subvectors_undef( | ||
| ; CHECK-SAME: <8 x i32> [[X:%.*]]) #[[ATTR0]] { | ||
| ; CHECK-NEXT: [[LO:%.*]] = shufflevector <8 x i32> [[X]], <8 x i32> undef, <4 x i32> <i32 0, i32 1, i32 2, i32 8> | ||
| ; CHECK-NEXT: [[HI:%.*]] = shufflevector <8 x i32> [[X]], <8 x i32> undef, <4 x i32> <i32 4, i32 5, i32 6, i32 8> | ||
| ; CHECK-NEXT: [[CONCAT:%.*]] = shufflevector <4 x i32> [[LO]], <4 x i32> [[HI]], <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7> | ||
| ; CHECK-NEXT: ret <8 x i32> [[CONCAT]] | ||
| ; | ||
| %lo = shufflevector <8 x i32> %x, <8 x i32> undef, <4 x i32> <i32 0, i32 1, i32 2, i32 8> | ||
| %hi = shufflevector <8 x i32> %x, <8 x i32> undef, <4 x i32> <i32 4, i32 5, i32 6, i32 8> | ||
| %concat = shufflevector <4 x i32> %lo, <4 x i32> %hi, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7> | ||
| ret <8 x i32> %concat | ||
| } | ||
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| ; negative test - shuffle contains poision | ||
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| define <8 x i32> @concat_extract_subvectors_poison(<8 x i32> %x) { | ||
| ; CHECK-LABEL: define <8 x i32> @concat_extract_subvectors_poison( | ||
| ; CHECK-SAME: <8 x i32> [[X:%.*]]) #[[ATTR0]] { | ||
| ; CHECK-NEXT: [[LO:%.*]] = shufflevector <8 x i32> [[X]], <8 x i32> poison, <4 x i32> <i32 0, i32 1, i32 2, i32 8> | ||
| ; CHECK-NEXT: [[HI:%.*]] = shufflevector <8 x i32> [[X]], <8 x i32> poison, <4 x i32> <i32 4, i32 5, i32 6, i32 8> | ||
| ; CHECK-NEXT: [[CONCAT:%.*]] = shufflevector <4 x i32> [[LO]], <4 x i32> [[HI]], <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7> | ||
| ; CHECK-NEXT: ret <8 x i32> [[CONCAT]] | ||
| ; | ||
| %lo = shufflevector <8 x i32> %x, <8 x i32> poison, <4 x i32> <i32 0, i32 1, i32 2, i32 8> | ||
| %hi = shufflevector <8 x i32> %x, <8 x i32> poison, <4 x i32> <i32 4, i32 5, i32 6, i32 8> | ||
| %concat = shufflevector <4 x i32> %lo, <4 x i32> %hi, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7> | ||
| ret <8 x i32> %concat | ||
| } |