e478a22d54
This put the onus on the caller to ensure the result type is big enough. In the unlikely event a cropped result is required then explicitly truncate a safe value.
113 lines
6.6 KiB
LLVM
113 lines
6.6 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -passes=loop-vectorize,instsimplify -force-vector-interleave=1 -S | FileCheck %s --check-prefixes=WIDE
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; RUN: opt < %s -passes=loop-vectorize,instsimplify -force-vector-interleave=1 -vectorizer-maximize-bandwidth-for-vector-calls=false -S | FileCheck %s --check-prefixes=NARROW
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target triple = "aarch64-unknown-linux-gnu"
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define void @test_widen(ptr noalias %a, ptr readnone %b) #1 {
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; WIDE-LABEL: @test_widen(
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; WIDE-NEXT: entry:
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; WIDE-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
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; WIDE: vector.ph:
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; WIDE-NEXT: [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
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; WIDE-NEXT: [[TMP3:%.*]] = mul nuw i64 [[TMP2]], 4
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; WIDE-NEXT: [[N_MOD_VF:%.*]] = urem i64 1025, [[TMP3]]
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; WIDE-NEXT: [[N_VEC:%.*]] = sub i64 1025, [[N_MOD_VF]]
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; WIDE-NEXT: [[TMP8:%.*]] = call i64 @llvm.vscale.i64()
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; WIDE-NEXT: [[TMP9:%.*]] = mul nuw i64 [[TMP8]], 4
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; WIDE-NEXT: br label [[VECTOR_BODY:%.*]]
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; WIDE: vector.body:
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; WIDE-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
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; WIDE-NEXT: [[TMP4:%.*]] = getelementptr double, ptr [[B:%.*]], i64 [[INDEX]]
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; WIDE-NEXT: [[WIDE_LOAD:%.*]] = load <vscale x 4 x double>, ptr [[TMP4]], align 8
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; WIDE-NEXT: [[TMP5:%.*]] = fptrunc <vscale x 4 x double> [[WIDE_LOAD]] to <vscale x 4 x float>
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; WIDE-NEXT: [[TMP6:%.*]] = call <vscale x 4 x float> @foo_vector(<vscale x 4 x float> [[TMP5]], <vscale x 4 x i1> splat (i1 true))
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; WIDE-NEXT: [[TMP7:%.*]] = getelementptr inbounds float, ptr [[A:%.*]], i64 [[INDEX]]
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; WIDE-NEXT: store <vscale x 4 x float> [[TMP6]], ptr [[TMP7]], align 4
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; WIDE-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP9]]
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; WIDE-NEXT: [[TMP10:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
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; WIDE-NEXT: br i1 [[TMP10]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
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; WIDE: middle.block:
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; WIDE-NEXT: br i1 false, label [[FOR_COND_CLEANUP:%.*]], label [[SCALAR_PH]]
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; WIDE: scalar.ph:
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; WIDE-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
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; WIDE-NEXT: br label [[FOR_BODY:%.*]]
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; WIDE: for.body:
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; WIDE-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY]] ]
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; WIDE-NEXT: [[GEP:%.*]] = getelementptr double, ptr [[B]], i64 [[INDVARS_IV]]
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; WIDE-NEXT: [[LOAD:%.*]] = load double, ptr [[GEP]], align 8
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; WIDE-NEXT: [[TRUNC:%.*]] = fptrunc double [[LOAD]] to float
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; WIDE-NEXT: [[CALL:%.*]] = call float @foo(float [[TRUNC]]) #[[ATTR2:[0-9]+]]
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; WIDE-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds float, ptr [[A]], i64 [[INDVARS_IV]]
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; WIDE-NEXT: store float [[CALL]], ptr [[ARRAYIDX]], align 4
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; WIDE-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1
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; WIDE-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[INDVARS_IV_NEXT]], 1025
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; WIDE-NEXT: br i1 [[EXITCOND]], label [[FOR_COND_CLEANUP]], label [[FOR_BODY]], !llvm.loop [[LOOP3:![0-9]+]]
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; WIDE: for.cond.cleanup:
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; WIDE-NEXT: ret void
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;
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; NARROW-LABEL: @test_widen(
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; NARROW-NEXT: entry:
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; NARROW-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
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; NARROW: vector.ph:
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; NARROW-NEXT: br label [[VECTOR_BODY:%.*]]
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; NARROW: vector.body:
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; NARROW-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
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; NARROW-NEXT: [[TMP0:%.*]] = getelementptr double, ptr [[B:%.*]], i64 [[INDEX]]
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; NARROW-NEXT: [[WIDE_LOAD:%.*]] = load <2 x double>, ptr [[TMP0]], align 8
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; NARROW-NEXT: [[TMP1:%.*]] = fptrunc <2 x double> [[WIDE_LOAD]] to <2 x float>
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; NARROW-NEXT: [[TMP2:%.*]] = extractelement <2 x float> [[TMP1]], i32 0
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; NARROW-NEXT: [[TMP3:%.*]] = call float @foo(float [[TMP2]]) #[[ATTR1:[0-9]+]]
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; NARROW-NEXT: [[TMP4:%.*]] = extractelement <2 x float> [[TMP1]], i32 1
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; NARROW-NEXT: [[TMP5:%.*]] = call float @foo(float [[TMP4]]) #[[ATTR1]]
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; NARROW-NEXT: [[TMP6:%.*]] = insertelement <2 x float> poison, float [[TMP3]], i32 0
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; NARROW-NEXT: [[TMP7:%.*]] = insertelement <2 x float> [[TMP6]], float [[TMP5]], i32 1
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; NARROW-NEXT: [[TMP8:%.*]] = getelementptr inbounds float, ptr [[A:%.*]], i64 [[INDEX]]
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; NARROW-NEXT: store <2 x float> [[TMP7]], ptr [[TMP8]], align 4
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; NARROW-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 2
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; NARROW-NEXT: [[TMP9:%.*]] = icmp eq i64 [[INDEX_NEXT]], 1024
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; NARROW-NEXT: br i1 [[TMP9]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
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; NARROW: middle.block:
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; NARROW-NEXT: br i1 false, label [[FOR_COND_CLEANUP:%.*]], label [[SCALAR_PH]]
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; NARROW: scalar.ph:
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; NARROW-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ 1024, [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
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; NARROW-NEXT: br label [[FOR_BODY:%.*]]
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; NARROW: for.body:
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; NARROW-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY]] ]
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; NARROW-NEXT: [[GEP:%.*]] = getelementptr double, ptr [[B]], i64 [[INDVARS_IV]]
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; NARROW-NEXT: [[LOAD:%.*]] = load double, ptr [[GEP]], align 8
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; NARROW-NEXT: [[TRUNC:%.*]] = fptrunc double [[LOAD]] to float
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; NARROW-NEXT: [[CALL:%.*]] = call float @foo(float [[TRUNC]]) #[[ATTR1]]
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; NARROW-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds float, ptr [[A]], i64 [[INDVARS_IV]]
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; NARROW-NEXT: store float [[CALL]], ptr [[ARRAYIDX]], align 4
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; NARROW-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1
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; NARROW-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[INDVARS_IV_NEXT]], 1025
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; NARROW-NEXT: br i1 [[EXITCOND]], label [[FOR_COND_CLEANUP]], label [[FOR_BODY]], !llvm.loop [[LOOP3:![0-9]+]]
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; NARROW: for.cond.cleanup:
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; NARROW-NEXT: ret void
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;
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entry:
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br label %for.body
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for.body:
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%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
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%gep = getelementptr double, ptr %b, i64 %indvars.iv
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%load = load double, ptr %gep
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%trunc = fptrunc double %load to float
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%call = call float @foo(float %trunc) #0
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%arrayidx = getelementptr inbounds float, ptr %a, i64 %indvars.iv
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store float %call, ptr %arrayidx
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%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
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%exitcond = icmp eq i64 %indvars.iv.next, 1025
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br i1 %exitcond, label %for.cond.cleanup, label %for.body
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for.cond.cleanup:
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ret void
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}
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declare float @foo(float)
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declare <vscale x 4 x float> @foo_vector(<vscale x 4 x float>, <vscale x 4 x i1>)
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attributes #0 = { nounwind "vector-function-abi-variant"="_ZGVsMxv_foo(foo_vector)" }
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attributes #1 = { "target-features"="+sve" vscale_range(1,16) "no-trapping-math"="false" }
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