106 lines
4.1 KiB
LLVM
106 lines
4.1 KiB
LLVM
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; RUN: llc < %s -mtriple=ve -mattr=+vpu | FileCheck %s
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; Test for correct placement of 'lvl' instructions
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; Function Attrs: nounwind readonly
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declare <256 x double> @llvm.ve.vl.vld.vssl(i64, i8*, i32)
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declare void @llvm.ve.vl.vst.vssl(<256 x double>, i64, i8*, i32)
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; Check that the backend can handle constant VL as well as parametric VL
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; sources.
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; Function Attrs: nounwind
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define void @switching_vl(i32 %evl, i32 %evl2, i8* %P, i8* %Q) {
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; CHECK-LABEL: switching_vl:
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; CHECK: # %bb.0:
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; CHECK-NEXT: lea %s4, 256
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; CHECK-NEXT: lvl %s4
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; CHECK-NEXT: vld %v0, 8, %s2
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; CHECK-NEXT: and %s0, %s0, (32)0
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; CHECK-NEXT: lvl %s0
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; CHECK-NEXT: vst %v0, 16, %s3
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; CHECK-NEXT: lea %s4, 128
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; CHECK-NEXT: lvl %s4
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; CHECK-NEXT: vld %v0, 16, %s2
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; CHECK-NEXT: and %s1, %s1, (32)0
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; CHECK-NEXT: lvl %s1
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; CHECK-NEXT: vst %v0, 16, %s3
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; CHECK-NEXT: lvl %s4
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; CHECK-NEXT: vld %v0, 8, %s2
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; CHECK-NEXT: lvl %s0
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; CHECK-NEXT: vst %v0, 16, %s3
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; CHECK-NEXT: b.l.t (, %s10)
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%l0 = tail call <256 x double> @llvm.ve.vl.vld.vssl(i64 8, i8* %P, i32 256)
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tail call void @llvm.ve.vl.vst.vssl(<256 x double> %l0, i64 16, i8* %Q, i32 %evl)
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%l1 = tail call <256 x double> @llvm.ve.vl.vld.vssl(i64 16, i8* %P, i32 128)
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tail call void @llvm.ve.vl.vst.vssl(<256 x double> %l1, i64 16, i8* %Q, i32 %evl2)
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%l2 = tail call <256 x double> @llvm.ve.vl.vld.vssl(i64 8, i8* %P, i32 128)
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tail call void @llvm.ve.vl.vst.vssl(<256 x double> %l2, i64 16, i8* %Q, i32 %evl)
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ret void
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}
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; Check that no redundant 'lvl' is inserted when vector length does not change
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; in a basic block.
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; Function Attrs: nounwind
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define void @stable_vl(i32 %evl, i8* %P, i8* %Q) {
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; CHECK-LABEL: stable_vl:
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; CHECK: # %bb.0:
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; CHECK-NEXT: and %s0, %s0, (32)0
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; CHECK-NEXT: lvl %s0
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; CHECK-NEXT: vld %v0, 8, %s1
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; CHECK-NEXT: vst %v0, 16, %s2
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; CHECK-NEXT: vld %v0, 16, %s1
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; CHECK-NEXT: vst %v0, 16, %s2
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; CHECK-NEXT: vld %v0, 8, %s1
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; CHECK-NEXT: vst %v0, 16, %s2
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; CHECK-NEXT: b.l.t (, %s10)
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%l0 = tail call <256 x double> @llvm.ve.vl.vld.vssl(i64 8, i8* %P, i32 %evl)
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tail call void @llvm.ve.vl.vst.vssl(<256 x double> %l0, i64 16, i8* %Q, i32 %evl)
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%l1 = tail call <256 x double> @llvm.ve.vl.vld.vssl(i64 16, i8* %P, i32 %evl)
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tail call void @llvm.ve.vl.vst.vssl(<256 x double> %l1, i64 16, i8* %Q, i32 %evl)
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%l2 = tail call <256 x double> @llvm.ve.vl.vld.vssl(i64 8, i8* %P, i32 %evl)
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tail call void @llvm.ve.vl.vst.vssl(<256 x double> %l2, i64 16, i8* %Q, i32 %evl)
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ret void
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}
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;;; Check the case we have a call in the middle of vector instructions.
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; Function Attrs: nounwind
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define void @call_invl(i32 %evl, i8* %P, i8* %Q) {
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; CHECK-LABEL: call_invl:
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; CHECK: .LBB{{[0-9]+}}_2:
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; CHECK-NEXT: st %s18, 288(, %s11) # 8-byte Folded Spill
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; CHECK-NEXT: st %s19, 296(, %s11) # 8-byte Folded Spill
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; CHECK-NEXT: st %s20, 304(, %s11) # 8-byte Folded Spill
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; CHECK-NEXT: or %s18, 0, %s1
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; CHECK-NEXT: and %s20, %s0, (32)0
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; CHECK-NEXT: lvl %s20
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; CHECK-NEXT: vld %v0, 8, %s1
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; CHECK-NEXT: or %s19, 0, %s2
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; CHECK-NEXT: vst %v0, 16, %s2
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; CHECK-NEXT: lea %s0, fun@lo
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; CHECK-NEXT: and %s0, %s0, (32)0
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; CHECK-NEXT: lea.sl %s12, fun@hi(, %s0)
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; CHECK-NEXT: bsic %s10, (, %s12)
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; CHECK-NEXT: lvl %s20
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; CHECK-NEXT: vld %v0, 16, %s18
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; CHECK-NEXT: vst %v0, 16, %s19
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; CHECK-NEXT: vld %v0, 8, %s18
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; CHECK-NEXT: vst %v0, 16, %s19
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; CHECK-NEXT: ld %s20, 304(, %s11) # 8-byte Folded Reload
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; CHECK-NEXT: ld %s19, 296(, %s11) # 8-byte Folded Reload
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; CHECK-NEXT: ld %s18, 288(, %s11) # 8-byte Folded Reload
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; CHECK-NEXT: or %s11, 0, %s9
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%l0 = tail call <256 x double> @llvm.ve.vl.vld.vssl(i64 8, i8* %P, i32 %evl)
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tail call void @llvm.ve.vl.vst.vssl(<256 x double> %l0, i64 16, i8* %Q, i32 %evl)
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call void @fun()
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%l1 = tail call <256 x double> @llvm.ve.vl.vld.vssl(i64 16, i8* %P, i32 %evl)
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tail call void @llvm.ve.vl.vst.vssl(<256 x double> %l1, i64 16, i8* %Q, i32 %evl)
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%l2 = tail call <256 x double> @llvm.ve.vl.vld.vssl(i64 8, i8* %P, i32 %evl)
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tail call void @llvm.ve.vl.vst.vssl(<256 x double> %l2, i64 16, i8* %Q, i32 %evl)
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ret void
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}
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declare void @fun()
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