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TheRock/compiler/amd-llvm/llvm/test/CodeGen/RISCV/rvv/regcoal-liveinterval-pruning.ll
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

61 lines
1.5 KiB
LLVM

; RUN: llc -mtriple=riscv64 < %s | FileCheck %s
define <8 x i64> @ID156249() #0 {
; CHECK-LABEL: ID156249:
; Entry setup
; CHECK: vsetivli {{.*}} e64
; CHECK-NEXT: vmv.v.i
entry:
br label %ac
ac:
%e.2 = phi <8 x i64> [ zeroinitializer, %entry ], [ %vecins, %ac ], [ %vecins4, %asm.fallthrough3 ], [ %vecins2, %asm.fallthrough ]
%vecins = insertelement <8 x i64> %e.2, i64 0, i64 0
; First scalar insert
; CHECK: vsetivli {{.*}} e64
; CHECK-NEXT: vmv.s.x
callbr void asm sideeffect "", "!i"()
to label %asm.fallthrough [label %ac]
asm.fallthrough:
%vecins2 = shufflevector <8 x i64> %vecins, <8 x i64> splat (i64 1),
<8 x i32> <i32 0, i32 1, i32 2, i32 10, i32 4, i32 5, i32 6, i32 7>
; Shuffle lowering sequence
; CHECK: vsetivli {{.*}} e8
; CHECK-NEXT: vmv.v.i
; CHECK-NEXT: vsetivli {{.*}} e64
; CHECK-NEXT: vmv.v.i
; CHECK-NEXT: vslideup.vi
; CHECK-NEXT: vmv.v.v
callbr void asm sideeffect "", "!i"()
to label %asm.fallthrough3 [label %ac]
asm.fallthrough3:
%vecins4 = insertelement <8 x i64> %vecins2, i64 0, i64 0
; Second scalar insert
; CHECK: vsetivli {{.*}} e64
; CHECK-NEXT: vmv.s.x
callbr void asm sideeffect "", "!i"()
to label %asm.fallthrough5 [label %ac]
asm.fallthrough5:
%or = or <8 x i64> %vecins2, %vecins4
; Final combine + return
; CHECK: vsetivli {{.*}} e64
; CHECK-NEXT: vor.vv
; CHECK-NEXT: ret
ret <8 x i64> %or
}
attributes #0 = { "target-features"="+v" }