[CostModel][X86] merge select costs tests using -cost-kind=all

[RKSimon]

No description provided.

[llvmbot]

@llvm/pr-subscribers-llvm-analysis

@llvm/pr-subscribers-backend-x86

Author: Simon Pilgrim (RKSimon)

Changes

---

Patch is 212.68 KiB, truncated to 20.00 KiB below, full version: https://github.com/llvm/llvm-project/pull/131865.diff

4 Files Affected:

• (removed) llvm/test/Analysis/CostModel/X86/select-codesize.ll (-455)
• (removed) llvm/test/Analysis/CostModel/X86/select-latency.ll (-482)
• (removed) llvm/test/Analysis/CostModel/X86/select-sizelatency.ll (-529)
• (modified) llvm/test/Analysis/CostModel/X86/select.ll (+344-270)

diff --git a/llvm/test/Analysis/CostModel/X86/select-codesize.ll b/llvm/test/Analysis/CostModel/X86/select-codesize.ll
deleted file mode 100644
index c801a5fcb257d..0000000000000
--- a/llvm/test/Analysis/CostModel/X86/select-codesize.ll
+++ /dev/null
@@ -1,455 +0,0 @@
-; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py
-; RUN: opt < %s -passes="print<cost-model>" 2>&1 -disable-output -cost-kind=code-size -mtriple=x86_64-- -mattr=+sse2 | FileCheck %s -check-prefixes=SSE2
-; RUN: opt < %s -passes="print<cost-model>" 2>&1 -disable-output -cost-kind=code-size -mtriple=x86_64-- -mattr=+sse4.1 | FileCheck %s -check-prefixes=SSE4
-; RUN: opt < %s -passes="print<cost-model>" 2>&1 -disable-output -cost-kind=code-size -mtriple=x86_64-- -mattr=+avx | FileCheck %s -check-prefixes=AVX,AVX1
-; RUN: opt < %s -passes="print<cost-model>" 2>&1 -disable-output -cost-kind=code-size -mtriple=x86_64-- -mattr=+avx2 | FileCheck %s -check-prefixes=AVX,AVX2
-; RUN: opt < %s -passes="print<cost-model>" 2>&1 -disable-output -cost-kind=code-size -mtriple=x86_64-- -mattr=+avx512f,+avx512vl  | FileCheck %s -check-prefixes=AVX512,AVX512F
-; RUN: opt < %s -passes="print<cost-model>" 2>&1 -disable-output -cost-kind=code-size -mtriple=x86_64-- -mattr=+avx512bw,+avx512vl | FileCheck %s -check-prefixes=AVX512,AVX512BW
-;
-; RUN: opt < %s -passes="print<cost-model>" 2>&1 -disable-output -cost-kind=code-size -mtriple=x86_64-- -mcpu=slm | FileCheck %s --check-prefixes=SSE4
-; RUN: opt < %s -passes="print<cost-model>" 2>&1 -disable-output -cost-kind=code-size -mtriple=x86_64-- -mcpu=goldmont | FileCheck %s --check-prefixes=SSE4
-; RUN: opt < %s -passes="print<cost-model>" 2>&1 -disable-output -cost-kind=code-size -mtriple=x86_64-- -mcpu=btver2 | FileCheck %s --check-prefixes=AVX,AVX1
-
-; Verify the cost of vector select instructions.
-
-define i32 @test_select() {
-; SSE2-LABEL: 'test_select'
-; SSE2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %I64 = select i1 undef, i64 undef, i64 undef
-; SSE2-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2I64 = select <2 x i1> undef, <2 x i64> undef, <2 x i64> undef
-; SSE2-NEXT:  Cost Model: Found an estimated cost of 6 for instruction: %V4I64 = select <4 x i1> undef, <4 x i64> undef, <4 x i64> undef
-; SSE2-NEXT:  Cost Model: Found an estimated cost of 12 for instruction: %V8I64 = select <8 x i1> undef, <8 x i64> undef, <8 x i64> undef
-; SSE2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %I32 = select i1 undef, i32 undef, i32 undef
-; SSE2-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V4I32 = select <4 x i1> undef, <4 x i32> undef, <4 x i32> undef
-; SSE2-NEXT:  Cost Model: Found an estimated cost of 6 for instruction: %V8I32 = select <8 x i1> undef, <8 x i32> undef, <8 x i32> undef
-; SSE2-NEXT:  Cost Model: Found an estimated cost of 12 for instruction: %V16I32 = select <16 x i1> undef, <16 x i32> undef, <16 x i32> undef
-; SSE2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %I16 = select i1 undef, i16 undef, i16 undef
-; SSE2-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V8I16 = select <8 x i1> undef, <8 x i16> undef, <8 x i16> undef
-; SSE2-NEXT:  Cost Model: Found an estimated cost of 6 for instruction: %V16I16 = select <16 x i1> undef, <16 x i16> undef, <16 x i16> undef
-; SSE2-NEXT:  Cost Model: Found an estimated cost of 12 for instruction: %V32I16 = select <32 x i1> undef, <32 x i16> undef, <32 x i16> undef
-; SSE2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %I8 = select i1 undef, i8 undef, i8 undef
-; SSE2-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V16I8 = select <16 x i1> undef, <16 x i8> undef, <16 x i8> undef
-; SSE2-NEXT:  Cost Model: Found an estimated cost of 6 for instruction: %V32I8 = select <32 x i1> undef, <32 x i8> undef, <32 x i8> undef
-; SSE2-NEXT:  Cost Model: Found an estimated cost of 12 for instruction: %V64I8 = select <64 x i1> undef, <64 x i8> undef, <64 x i8> undef
-; SSE2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: ret i32 undef
-;
-; SSE4-LABEL: 'test_select'
-; SSE4-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %I64 = select i1 undef, i64 undef, i64 undef
-; SSE4-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V2I64 = select <2 x i1> undef, <2 x i64> undef, <2 x i64> undef
-; SSE4-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V4I64 = select <4 x i1> undef, <4 x i64> undef, <4 x i64> undef
-; SSE4-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V8I64 = select <8 x i1> undef, <8 x i64> undef, <8 x i64> undef
-; SSE4-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %I32 = select i1 undef, i32 undef, i32 undef
-; SSE4-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4I32 = select <4 x i1> undef, <4 x i32> undef, <4 x i32> undef
-; SSE4-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V8I32 = select <8 x i1> undef, <8 x i32> undef, <8 x i32> undef
-; SSE4-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V16I32 = select <16 x i1> undef, <16 x i32> undef, <16 x i32> undef
-; SSE4-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %I16 = select i1 undef, i16 undef, i16 undef
-; SSE4-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8I16 = select <8 x i1> undef, <8 x i16> undef, <8 x i16> undef
-; SSE4-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V16I16 = select <16 x i1> undef, <16 x i16> undef, <16 x i16> undef
-; SSE4-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V32I16 = select <32 x i1> undef, <32 x i16> undef, <32 x i16> undef
-; SSE4-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %I8 = select i1 undef, i8 undef, i8 undef
-; SSE4-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V16I8 = select <16 x i1> undef, <16 x i8> undef, <16 x i8> undef
-; SSE4-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V32I8 = select <32 x i1> undef, <32 x i8> undef, <32 x i8> undef
-; SSE4-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V64I8 = select <64 x i1> undef, <64 x i8> undef, <64 x i8> undef
-; SSE4-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: ret i32 undef
-;
-; AVX1-LABEL: 'test_select'
-; AVX1-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %I64 = select i1 undef, i64 undef, i64 undef
-; AVX1-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V2I64 = select <2 x i1> undef, <2 x i64> undef, <2 x i64> undef
-; AVX1-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4I64 = select <4 x i1> undef, <4 x i64> undef, <4 x i64> undef
-; AVX1-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V8I64 = select <8 x i1> undef, <8 x i64> undef, <8 x i64> undef
-; AVX1-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %I32 = select i1 undef, i32 undef, i32 undef
-; AVX1-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4I32 = select <4 x i1> undef, <4 x i32> undef, <4 x i32> undef
-; AVX1-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8I32 = select <8 x i1> undef, <8 x i32> undef, <8 x i32> undef
-; AVX1-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V16I32 = select <16 x i1> undef, <16 x i32> undef, <16 x i32> undef
-; AVX1-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %I16 = select i1 undef, i16 undef, i16 undef
-; AVX1-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8I16 = select <8 x i1> undef, <8 x i16> undef, <8 x i16> undef
-; AVX1-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V16I16 = select <16 x i1> undef, <16 x i16> undef, <16 x i16> undef
-; AVX1-NEXT:  Cost Model: Found an estimated cost of 6 for instruction: %V32I16 = select <32 x i1> undef, <32 x i16> undef, <32 x i16> undef
-; AVX1-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %I8 = select i1 undef, i8 undef, i8 undef
-; AVX1-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V16I8 = select <16 x i1> undef, <16 x i8> undef, <16 x i8> undef
-; AVX1-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V32I8 = select <32 x i1> undef, <32 x i8> undef, <32 x i8> undef
-; AVX1-NEXT:  Cost Model: Found an estimated cost of 6 for instruction: %V64I8 = select <64 x i1> undef, <64 x i8> undef, <64 x i8> undef
-; AVX1-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: ret i32 undef
-;
-; AVX2-LABEL: 'test_select'
-; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %I64 = select i1 undef, i64 undef, i64 undef
-; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V2I64 = select <2 x i1> undef, <2 x i64> undef, <2 x i64> undef
-; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4I64 = select <4 x i1> undef, <4 x i64> undef, <4 x i64> undef
-; AVX2-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V8I64 = select <8 x i1> undef, <8 x i64> undef, <8 x i64> undef
-; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %I32 = select i1 undef, i32 undef, i32 undef
-; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4I32 = select <4 x i1> undef, <4 x i32> undef, <4 x i32> undef
-; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8I32 = select <8 x i1> undef, <8 x i32> undef, <8 x i32> undef
-; AVX2-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V16I32 = select <16 x i1> undef, <16 x i32> undef, <16 x i32> undef
-; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %I16 = select i1 undef, i16 undef, i16 undef
-; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8I16 = select <8 x i1> undef, <8 x i16> undef, <8 x i16> undef
-; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V16I16 = select <16 x i1> undef, <16 x i16> undef, <16 x i16> undef
-; AVX2-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V32I16 = select <32 x i1> undef, <32 x i16> undef, <32 x i16> undef
-; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %I8 = select i1 undef, i8 undef, i8 undef
-; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V16I8 = select <16 x i1> undef, <16 x i8> undef, <16 x i8> undef
-; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V32I8 = select <32 x i1> undef, <32 x i8> undef, <32 x i8> undef
-; AVX2-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V64I8 = select <64 x i1> undef, <64 x i8> undef, <64 x i8> undef
-; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: ret i32 undef
-;
-; AVX512F-LABEL: 'test_select'
-; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %I64 = select i1 undef, i64 undef, i64 undef
-; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V2I64 = select <2 x i1> undef, <2 x i64> undef, <2 x i64> undef
-; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4I64 = select <4 x i1> undef, <4 x i64> undef, <4 x i64> undef
-; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8I64 = select <8 x i1> undef, <8 x i64> undef, <8 x i64> undef
-; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %I32 = select i1 undef, i32 undef, i32 undef
-; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4I32 = select <4 x i1> undef, <4 x i32> undef, <4 x i32> undef
-; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8I32 = select <8 x i1> undef, <8 x i32> undef, <8 x i32> undef
-; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V16I32 = select <16 x i1> undef, <16 x i32> undef, <16 x i32> undef
-; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %I16 = select i1 undef, i16 undef, i16 undef
-; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8I16 = select <8 x i1> undef, <8 x i16> undef, <8 x i16> undef
-; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V16I16 = select <16 x i1> undef, <16 x i16> undef, <16 x i16> undef
-; AVX512F-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V32I16 = select <32 x i1> undef, <32 x i16> undef, <32 x i16> undef
-; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %I8 = select i1 undef, i8 undef, i8 undef
-; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V16I8 = select <16 x i1> undef, <16 x i8> undef, <16 x i8> undef
-; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V32I8 = select <32 x i1> undef, <32 x i8> undef, <32 x i8> undef
-; AVX512F-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V64I8 = select <64 x i1> undef, <64 x i8> undef, <64 x i8> undef
-; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: ret i32 undef
-;
-; AVX512BW-LABEL: 'test_select'
-; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %I64 = select i1 undef, i64 undef, i64 undef
-; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V2I64 = select <2 x i1> undef, <2 x i64> undef, <2 x i64> undef
-; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4I64 = select <4 x i1> undef, <4 x i64> undef, <4 x i64> undef
-; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8I64 = select <8 x i1> undef, <8 x i64> undef, <8 x i64> undef
-; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %I32 = select i1 undef, i32 undef, i32 undef
-; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4I32 = select <4 x i1> undef, <4 x i32> undef, <4 x i32> undef
-; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8I32 = select <8 x i1> undef, <8 x i32> undef, <8 x i32> undef
-; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V16I32 = select <16 x i1> undef, <16 x i32> undef, <16 x i32> undef
-; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %I16 = select i1 undef, i16 undef, i16 undef
-; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8I16 = select <8 x i1> undef, <8 x i16> undef, <8 x i16> undef
-; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V16I16 = select <16 x i1> undef, <16 x i16> undef, <16 x i16> undef
-; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V32I16 = select <32 x i1> undef, <32 x i16> undef, <32 x i16> undef
-; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %I8 = select i1 undef, i8 undef, i8 undef
-; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V16I8 = select <16 x i1> undef, <16 x i8> undef, <16 x i8> undef
-; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V32I8 = select <32 x i1> undef, <32 x i8> undef, <32 x i8> undef
-; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V64I8 = select <64 x i1> undef, <64 x i8> undef, <64 x i8> undef
-; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: ret i32 undef
-;
-  %I64 = select i1 undef, i64 undef, i64 undef
-  %V2I64 = select <2 x i1> undef, <2 x i64> undef, <2 x i64> undef
-  %V4I64 = select <4 x i1> undef, <4 x i64> undef, <4 x i64> undef
-  %V8I64 = select <8 x i1> undef, <8 x i64> undef, <8 x i64> undef
-
-  %I32 = select i1 undef, i32 undef, i32 undef
-  %V4I32 = select <4 x i1> undef, <4 x i32> undef, <4 x i32> undef
-  %V8I32 = select <8 x i1> undef, <8 x i32> undef, <8 x i32> undef
-  %V16I32 = select <16 x i1> undef, <16 x i32> undef, <16 x i32> undef
-
-  %I16 = select i1 undef, i16 undef, i16 undef
-  %V8I16 = select <8 x i1> undef, <8 x i16> undef, <8 x i16> undef
-  %V16I16 = select <16 x i1> undef, <16 x i16> undef, <16 x i16> undef
-  %V32I16 = select <32 x i1> undef, <32 x i16> undef, <32 x i16> undef
-
-  %I8 = select i1 undef, i8 undef, i8 undef
-  %V16I8 = select <16 x i1> undef, <16 x i8> undef, <16 x i8> undef
-  %V32I8 = select <32 x i1> undef, <32 x i8> undef, <32 x i8> undef
-  %V64I8 = select <64 x i1> undef, <64 x i8> undef, <64 x i8> undef
-
-  ret i32 undef
-}
-
-define i32 @test_select_fp() {
-; SSE2-LABEL: 'test_select_fp'
-; SSE2-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %F64 = select i1 undef, double undef, double undef
-; SSE2-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2F64 = select <2 x i1> undef, <2 x double> undef, <2 x double> undef
-; SSE2-NEXT:  Cost Model: Found an estimated cost of 6 for instruction: %V4F64 = select <4 x i1> undef, <4 x double> undef, <4 x double> undef
-; SSE2-NEXT:  Cost Model: Found an estimated cost of 12 for instruction: %V8F64 = select <8 x i1> undef, <8 x double> undef, <8 x double> undef
-; SSE2-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %F32 = select i1 undef, float undef, float undef
-; SSE2-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V4F32 = select <4 x i1> undef, <4 x float> undef, <4 x float> undef
-; SSE2-NEXT:  Cost Model: Found an estimated cost of 6 for instruction: %V8F32 = select <8 x i1> undef, <8 x float> undef, <8 x float> undef
-; SSE2-NEXT:  Cost Model: Found an estimated cost of 12 for instruction: %V16F32 = select <16 x i1> undef, <16 x float> undef, <16 x float> undef
-; SSE2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: ret i32 undef
-;
-; SSE4-LABEL: 'test_select_fp'
-; SSE4-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %F64 = select i1 undef, double undef, double undef
-; SSE4-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V2F64 = select <2 x i1> undef, <2 x double> undef, <2 x double> undef
-; SSE4-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V4F64 = select <4 x i1> undef, <4 x double> undef, <4 x double> undef
-; SSE4-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V8F64 = select <8 x i1> undef, <8 x double> undef, <8 x double> undef
-; SSE4-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %F32 = select i1 undef, float undef, float undef
-; SSE4-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4F32 = select <4 x i1> undef, <4 x float> undef, <4 x float> undef
-; SSE4-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V8F32 = select <8 x i1> undef, <8 x float> undef, <8 x float> undef
-; SSE4-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V16F32 = select <16 x i1> undef, <16 x float> undef, <16 x float> undef
-; SSE4-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: ret i32 undef
-;
-; AVX-LABEL: 'test_select_fp'
-; AVX-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %F64 = select i1 undef, double undef, double undef
-; AVX-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V2F64 = select <2 x i1> undef, <2 x double> undef, <2 x double> undef
-; AVX-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4F64 = select <4 x i1> undef, <4 x double> undef, <4 x double> undef
-; AVX-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V8F64 = select <8 x i1> undef, <8 x double> undef, <8 x double> undef
-; AVX-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %F32 = select i1 undef, float undef, float undef
-; AVX-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4F32 = select <4 x i1> undef, <4 x float> undef, <4 x float> undef
-; AVX-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8F32 = select <8 x i1> undef, <8 x float> undef, <8 x float> undef
-; AVX-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V16F32 = select <16 x i1> undef, <16 x float> undef, <16 x float> undef
-; AVX-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: ret i32 undef
-;
-; AVX512-LABEL: 'test_select_fp'
-; AVX512-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %F64 = select i1 undef, double unde...
[truncated]

[github-actions]

⚠️ undef deprecator found issues in your code. ⚠️

You can test this locally with the following command:

git diff -U0 --pickaxe-regex -S '([^a-zA-Z0-9#_-]undef[^a-zA-Z0-9_-]|UndefValue::get)' e6896f80da0d094518fce54b0fe1238f0f2c9a41 c29678f07f0cb2790d2a5143ea84626d678881ce llvm/test/Analysis/CostModel/X86/select.ll

The following files introduce new uses of undef:

• llvm/test/Analysis/CostModel/X86/select.ll

Undef is now deprecated and should only be used in the rare cases where no replacement is possible. For example, a load of uninitialized memory yields undef. You should use poison values for placeholders instead.

In tests, avoid using undef and having tests that trigger undefined behavior. If you need an operand with some unimportant value, you can add a new argument to the function and use that instead.

For example, this is considered a bad practice:

define void @fn() {
  ...
  br i1 undef, ...
}

Please use the following instead:

define void @fn(i1 %cond) {
  ...
  br i1 %cond, ...
}

Please refer to the Undefined Behavior Manual for more information.