llvm-project/llvm/test/CodeGen/Hexagon/propagate-vcombine.ll
Fangrui Song 2208c97c1b [Hexagon,test] Change llc -march= to -mtriple=
Similar to 806761a7629df268c8aed49657aeccffa6bca449

-mtriple= specifies the full target triple while -march= merely sets the
architecture part of the default target triple, leaving a target triple which
may not make sense.

Therefore, -march= is error-prone and not recommended for tests without a target
triple. The issue has been benign as we recognize $unknown-apple-darwin as ELF instead
of rejecting it outrightly.
2024-12-15 10:20:22 -08:00

49 lines
1.9 KiB
LLVM

; RUN: llc -mtriple=hexagon < %s | FileCheck %s
@v0 = global <16 x i32> zeroinitializer, align 64
@v1 = global <16 x i32> zeroinitializer, align 64
; CHECK-LABEL: danny:
; CHECK-NOT: vcombine
define void @danny() #0 {
%t0 = load <16 x i32>, ptr @v0, align 64
%t1 = load <16 x i32>, ptr @v1, align 64
%t2 = call <32 x i32> @llvm.hexagon.V6.vcombine(<16 x i32> %t0, <16 x i32> %t1)
%t3 = tail call <16 x i32> @llvm.hexagon.V6.lo(<32 x i32> %t2)
%t4 = tail call <16 x i32> @llvm.hexagon.V6.hi(<32 x i32> %t2)
store <16 x i32> %t3, ptr @v0, align 64
store <16 x i32> %t4, ptr @v1, align 64
ret void
}
@w0 = global <32 x i32> zeroinitializer, align 128
@w1 = global <32 x i32> zeroinitializer, align 128
; CHECK-LABEL: sammy:
; CHECK-NOT: vcombine
define void @sammy() #1 {
%t0 = load <32 x i32>, ptr @w0, align 128
%t1 = load <32 x i32>, ptr @w1, align 128
%t2 = call <64 x i32> @llvm.hexagon.V6.vcombine.128B(<32 x i32> %t0, <32 x i32> %t1)
%t3 = tail call <32 x i32> @llvm.hexagon.V6.lo.128B(<64 x i32> %t2)
%t4 = tail call <32 x i32> @llvm.hexagon.V6.hi.128B(<64 x i32> %t2)
store <32 x i32> %t3, ptr @w0, align 128
store <32 x i32> %t4, ptr @w1, align 128
ret void
}
declare <32 x i32> @llvm.hexagon.V6.vcombine(<16 x i32>, <16 x i32>) #2
declare <16 x i32> @llvm.hexagon.V6.lo(<32 x i32>) #2
declare <16 x i32> @llvm.hexagon.V6.hi(<32 x i32>) #2
declare <64 x i32> @llvm.hexagon.V6.vcombine.128B(<32 x i32>, <32 x i32>) #3
declare <32 x i32> @llvm.hexagon.V6.lo.128B(<64 x i32>) #3
declare <32 x i32> @llvm.hexagon.V6.hi.128B(<64 x i32>) #3
attributes #0 = { nounwind "target-cpu"="hexagonv60" "target-features"="+hvxv60,+hvx-length64b" }
attributes #1 = { nounwind "target-cpu"="hexagonv60" "target-features"="+hvxv60,+hvx-length128b" }
attributes #2 = { nounwind readnone "target-cpu"="hexagonv60" "target-features"="+hvxv60,+hvx-length64b" }
attributes #3 = { nounwind readnone "target-cpu"="hexagonv60" "target-features"="+hvxv60,+hvx-length128b" }