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llvm-project/llvm/test/CodeGen/SystemZ/vec-extract-01.ll

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[DAGCombiner] Fix ReplaceExtractVectorEltOfLoadWithNarrowedLoad for BE For little-endian, the function would convert (extract_vector_elt (load X), Y) to X + Y*sizeof(elt). For big-endian it would instead use X + sizeof(vec) - Y*sizeof(elt). The big-endian case wasn't right since vector index order always follows memory/array order, even for big-endian. (Note that the current handling has to be wrong for Y==0 since it would access beyond the end of the vector.) Original patch by Richard Sandiford. llvm-svn: 236529
2015-05-06 03:33:37 +08:00
; Verify ReplaceExtractVectorEltOfLoadWithNarrowedLoad fixes
;
; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z13 | FileCheck %s
; Test a memory copy of a v2i32 (via the constant pool).
define void @f1(<2 x i32> *%dest) {
; CHECK-LABEL: f1:
[DAGCombiner][X86][SystemZ][AArch64] Combine some cases of (bitcast (build_vector constants)) between legalize types and legalize dag. This patch enables combining integer bitcasts of integer build vectors when the new scalar type is legal. I've avoided floating point because the implementation bitcasts float to int along the way and we would need to check the intermediate types for legality Differential Revision: https://reviews.llvm.org/D58884 llvm-svn: 355324
2019-03-05 03:12:16 +08:00
; CHECK: llihf [[REG:%r[0-5]]], 1000000
; CHECK: oilf [[REG]], 99999
[DAGCombiner] Fix ReplaceExtractVectorEltOfLoadWithNarrowedLoad for BE For little-endian, the function would convert (extract_vector_elt (load X), Y) to X + Y*sizeof(elt). For big-endian it would instead use X + sizeof(vec) - Y*sizeof(elt). The big-endian case wasn't right since vector index order always follows memory/array order, even for big-endian. (Note that the current handling has to be wrong for Y==0 since it would access beyond the end of the vector.) Original patch by Richard Sandiford. llvm-svn: 236529
2015-05-06 03:33:37 +08:00
; CHECK: stg [[REG]], 0(%r2)
; CHECK: br %r14
store <2 x i32> <i32 1000000, i32 99999>, <2 x i32> *%dest
ret void
}