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633f0ac7dd
A masked scatter with a zero mask means there's no store. A masked gather with a zero mask means the passthru arg is returned. This is a continuation of: http://reviews.llvm.org/rL259369 http://reviews.llvm.org/rL259392 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259421 91177308-0d34-0410-b5e6-96231b3b80d8
58 lines
2.3 KiB
LLVM
58 lines
2.3 KiB
LLVM
; RUN: opt -instcombine -S < %s | FileCheck %s
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declare <2 x double> @llvm.masked.load.v2f64(<2 x double>* %ptrs, i32, <2 x i1> %mask, <2 x double> %src0)
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declare void @llvm.masked.store.v2f64(<2 x double> %val, <2 x double>* %ptrs, i32, <2 x i1> %mask)
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declare <2 x double> @llvm.masked.gather.v2f64(<2 x double*> %ptrs, i32, <2 x i1> %mask, <2 x double> %passthru)
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declare void @llvm.masked.scatter.v2f64(<2 x double> %val, <2 x double*> %ptrs, i32, <2 x i1> %mask)
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define <2 x double> @load_zeromask(<2 x double>* %ptr, <2 x double> %passthru) {
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%res = call <2 x double> @llvm.masked.load.v2f64(<2 x double>* %ptr, i32 1, <2 x i1> zeroinitializer, <2 x double> %passthru)
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ret <2 x double> %res
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; CHECK-LABEL: @load_zeromask(
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; CHECK-NEXT: ret <2 x double> %passthru
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}
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define <2 x double> @load_onemask(<2 x double>* %ptr, <2 x double> %passthru) {
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%res = call <2 x double> @llvm.masked.load.v2f64(<2 x double>* %ptr, i32 2, <2 x i1> <i1 1, i1 1>, <2 x double> %passthru)
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ret <2 x double> %res
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; CHECK-LABEL: @load_onemask(
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; CHECK-NEXT: %unmaskedload = load <2 x double>, <2 x double>* %ptr, align 2
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; CHECK-NEXT: ret <2 x double> %unmaskedload
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}
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define void @store_zeromask(<2 x double>* %ptr, <2 x double> %val) {
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call void @llvm.masked.store.v2f64(<2 x double> %val, <2 x double>* %ptr, i32 3, <2 x i1> zeroinitializer)
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ret void
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; CHECK-LABEL: @store_zeromask(
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; CHECK-NEXT: ret void
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}
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define void @store_onemask(<2 x double>* %ptr, <2 x double> %val) {
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call void @llvm.masked.store.v2f64(<2 x double> %val, <2 x double>* %ptr, i32 4, <2 x i1> <i1 1, i1 1>)
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ret void
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; CHECK-LABEL: @store_onemask(
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; CHECK-NEXT: store <2 x double> %val, <2 x double>* %ptr, align 4
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; CHECK-NEXT: ret void
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}
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define <2 x double> @gather_zeromask(<2 x double*> %ptrs, <2 x double> %passthru) {
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%res = call <2 x double> @llvm.masked.gather.v2f64(<2 x double*> %ptrs, i32 5, <2 x i1> zeroinitializer, <2 x double> %passthru)
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ret <2 x double> %res
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; CHECK-LABEL: @gather_zeromask(
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; CHECK-NEXT: ret <2 x double> %passthru
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}
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define void @scatter_zeromask(<2 x double*> %ptrs, <2 x double> %val) {
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call void @llvm.masked.scatter.v2f64(<2 x double> %val, <2 x double*> %ptrs, i32 6, <2 x i1> zeroinitializer)
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ret void
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; CHECK-LABEL: @scatter_zeromask(
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; CHECK-NEXT: ret void
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}
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