375 lines
14 KiB
LLVM
375 lines
14 KiB
LLVM
; RUN: opt -mtriple=thumbv8.1m.main-arm-eabihf -mattr=+mve.fp \
|
|
; RUN: -tail-predication=enabled -loop-vectorize -S < %s | \
|
|
; RUN: FileCheck %s
|
|
|
|
define void @trunc_not_allowed_different_vec_elemns(i32* noalias nocapture %A, i32* noalias nocapture readonly %B, i32* noalias nocapture readonly %C, i16* noalias nocapture %D) #0 {
|
|
; CHECK-LABEL: trunc_not_allowed_different_vec_elemns(
|
|
; CHECK: vector.body:
|
|
; CHECK-NOT: llvm.masked.load
|
|
; CHECK-NOT: llvm.masked.store
|
|
; CHECK: br i1 %{{.*}}, label %{{.*}}, label %vector.body
|
|
entry:
|
|
br label %for.body
|
|
|
|
for.cond.cleanup:
|
|
ret void
|
|
|
|
for.body:
|
|
%i.021 = phi i32 [ 0, %entry ], [ %add9, %for.body ]
|
|
%arrayidx = getelementptr inbounds i32, i32* %B, i32 %i.021
|
|
%0 = load i32, i32* %arrayidx, align 4
|
|
%arrayidx1 = getelementptr inbounds i32, i32* %C, i32 %i.021
|
|
%1 = load i32, i32* %arrayidx1, align 4
|
|
%add = add nsw i32 %1, %0
|
|
%arrayidx2 = getelementptr inbounds i32, i32* %A, i32 %i.021
|
|
store i32 %add, i32* %arrayidx2, align 4
|
|
%add.tr = trunc i32 %add to i16
|
|
%conv7 = shl i16 %add.tr, 1
|
|
%arrayidx8 = getelementptr inbounds i16, i16* %D, i32 %i.021
|
|
store i16 %conv7, i16* %arrayidx8, align 2
|
|
%add9 = add nuw nsw i32 %i.021, 1
|
|
%exitcond = icmp eq i32 %add9, 431
|
|
br i1 %exitcond, label %for.cond.cleanup, label %for.body
|
|
}
|
|
|
|
define void @unsupported_i64_type(i64* noalias nocapture %A, i64* noalias nocapture readonly %B, i64* noalias nocapture readonly %C) #0 {
|
|
; CHECK-LABEL: unsupported_i64_type(
|
|
; CHECK-NOT: vector.body:
|
|
; CHECK-NOT: llvm.masked.load
|
|
; CHECK-NOT: llvm.masked.store
|
|
; CHECK: for.body:
|
|
entry:
|
|
br label %for.body
|
|
|
|
for.cond.cleanup:
|
|
ret void
|
|
|
|
for.body:
|
|
%i.09 = phi i32 [ 0, %entry ], [ %add3, %for.body ]
|
|
%arrayidx = getelementptr inbounds i64, i64* %B, i32 %i.09
|
|
%0 = load i64, i64* %arrayidx, align 8
|
|
%arrayidx1 = getelementptr inbounds i64, i64* %C, i32 %i.09
|
|
%1 = load i64, i64* %arrayidx1, align 8
|
|
%add = add nsw i64 %1, %0
|
|
%arrayidx2 = getelementptr inbounds i64, i64* %A, i32 %i.09
|
|
store i64 %add, i64* %arrayidx2, align 8
|
|
%add3 = add nuw nsw i32 %i.09, 1
|
|
%exitcond = icmp eq i32 %add3, 431
|
|
br i1 %exitcond, label %for.cond.cleanup, label %for.body
|
|
}
|
|
|
|
define void @narrowing_load_not_allowed(i8* noalias nocapture %A, i8* noalias nocapture readonly %B, i16* noalias nocapture readonly %C) #0 {
|
|
; CHECK-LABEL: narrowing_load_not_allowed(
|
|
; CHECK: vector.body:
|
|
; CHECK-NOT: llvm.masked.load
|
|
; CHECK-NOT: llvm.masked.store
|
|
; CHECK: br i1 %{{.*}}, label %{{.*}}, label %vector.body
|
|
entry:
|
|
br label %for.body
|
|
|
|
for.cond.cleanup: ; preds = %for.body
|
|
ret void
|
|
|
|
for.body: ; preds = %for.body, %entry
|
|
%i.012 = phi i32 [ 0, %entry ], [ %add6, %for.body ]
|
|
%arrayidx = getelementptr inbounds i16, i16* %C, i32 %i.012
|
|
%0 = load i16, i16* %arrayidx, align 2
|
|
%arrayidx1 = getelementptr inbounds i8, i8* %B, i32 %i.012
|
|
%1 = load i8, i8* %arrayidx1, align 1
|
|
%conv3 = trunc i16 %0 to i8
|
|
%add = add i8 %1, %conv3
|
|
%arrayidx5 = getelementptr inbounds i8, i8* %A, i32 %i.012
|
|
store i8 %add, i8* %arrayidx5, align 1
|
|
%add6 = add nuw nsw i32 %i.012, 1
|
|
%exitcond = icmp eq i32 %add6, 431
|
|
br i1 %exitcond, label %for.cond.cleanup, label %for.body
|
|
}
|
|
|
|
; This is a trunc not connected to a store, so we don't allow this.
|
|
; TODO: this is conservative, because the trunc is only used in the
|
|
; loop control statements, and thus not affecting element sizes, so
|
|
; we could allow this case.
|
|
;
|
|
define void @trunc_not_allowed(i32* noalias nocapture %A, i32* noalias nocapture readonly %B, i32* noalias nocapture readonly %C) #0 {
|
|
; CHECK-LABEL: trunc_not_allowed(
|
|
; CHECK: vector.body:
|
|
; CHECK-NOT: llvm.masked.load
|
|
; CHECK-NOT: llvm.masked.store
|
|
; CHECK: br i1 %{{.*}}, label %{{.*}}, label %vector.body
|
|
entry:
|
|
br label %for.body
|
|
|
|
for.cond.cleanup:
|
|
ret void
|
|
|
|
for.body:
|
|
%i.09 = phi i32 [ 0, %entry ], [ %add3, %for.body ]
|
|
%arrayidx = getelementptr inbounds i32, i32* %B, i32 %i.09
|
|
%0 = load i32, i32* %arrayidx, align 4
|
|
%arrayidx1 = getelementptr inbounds i32, i32* %C, i32 %i.09
|
|
%1 = load i32, i32* %arrayidx1, align 4
|
|
%add = add nsw i32 %1, %0
|
|
%arrayidx2 = getelementptr inbounds i32, i32* %A, i32 %i.09
|
|
store i32 %add, i32* %arrayidx2, align 4
|
|
%add3 = add nuw nsw i32 %i.09, 1
|
|
|
|
%add.iv = trunc i32 %add3 to i16
|
|
|
|
%exitcond = icmp eq i16 %add.iv, 431
|
|
br i1 %exitcond, label %for.cond.cleanup, label %for.body
|
|
}
|
|
|
|
; Test directions for array indices i and N-1. I.e. check strides 1 and -1, and
|
|
; force vectorisation with a loop hint.
|
|
;
|
|
define void @strides_different_direction(i32* noalias nocapture %A, i32* noalias nocapture readonly %B, i32* noalias nocapture readonly %C, i32 %N) #0 {
|
|
; CHECK-LABEL: strides_different_direction(
|
|
; CHECK: vector.body:
|
|
; CHECK-NOT: llvm.masked.load
|
|
; CHECK-NOT: llvm.masked.store
|
|
; CHECK: br i1 %{{.*}}, label %{{.*}}, label %vector.body
|
|
entry:
|
|
br label %for.body
|
|
|
|
for.cond.cleanup:
|
|
ret void
|
|
|
|
for.body:
|
|
%i.09 = phi i32 [ 0, %entry ], [ %add3, %for.body ]
|
|
%arrayidx = getelementptr inbounds i32, i32* %B, i32 %i.09
|
|
%0 = load i32, i32* %arrayidx, align 4
|
|
%sub = sub nsw i32 %N, %i.09
|
|
%arrayidx1 = getelementptr inbounds i32, i32* %C, i32 %sub
|
|
%1 = load i32, i32* %arrayidx1, align 4
|
|
%add = add nsw i32 %1, %0
|
|
%arrayidx2 = getelementptr inbounds i32, i32* %A, i32 %i.09
|
|
store i32 %add, i32* %arrayidx2, align 4
|
|
%add3 = add nuw nsw i32 %i.09, 1
|
|
%exitcond = icmp eq i32 %add3, 431
|
|
br i1 %exitcond, label %for.cond.cleanup, label %for.body, !llvm.loop !10
|
|
}
|
|
|
|
define void @too_many_loop_blocks(i32* noalias nocapture %A, i32* noalias nocapture readonly %B, i32* noalias nocapture readonly %C) #0 {
|
|
; CHECK-LABEL: too_many_loop_blocks(
|
|
; CHECK: vector.body:
|
|
; CHECK-NOT: llvm.masked.load
|
|
; CHECK-NOT: llvm.masked.store
|
|
; CHECK: br i1 %{{.*}}, label %{{.*}}, label %vector.body
|
|
entry:
|
|
br label %for.body
|
|
|
|
for.cond.cleanup:
|
|
ret void
|
|
|
|
for.body:
|
|
%i.09 = phi i32 [ 0, %entry ], [ %add3, %loopincr ]
|
|
%arrayidx = getelementptr inbounds i32, i32* %B, i32 %i.09
|
|
%0 = load i32, i32* %arrayidx, align 4
|
|
%arrayidx1 = getelementptr inbounds i32, i32* %C, i32 %i.09
|
|
%1 = load i32, i32* %arrayidx1, align 4
|
|
%add = add nsw i32 %1, %0
|
|
%arrayidx2 = getelementptr inbounds i32, i32* %A, i32 %i.09
|
|
store i32 %add, i32* %arrayidx2, align 4
|
|
br label %loopincr
|
|
|
|
loopincr:
|
|
%add3 = add nuw nsw i32 %i.09, 1
|
|
%exitcond = icmp eq i32 %add3, 431
|
|
br i1 %exitcond, label %for.cond.cleanup, label %for.body
|
|
}
|
|
|
|
define void @double(double* noalias nocapture %A, double* noalias nocapture readonly %B, double* noalias nocapture readonly %C) #0 {
|
|
; CHECK-LABEL: double(
|
|
; CHECK: for.body:
|
|
; CHECK-NOT: vector.body:
|
|
entry:
|
|
br label %for.body
|
|
|
|
for.cond.cleanup:
|
|
ret void
|
|
|
|
for.body:
|
|
%i.09 = phi i32 [ 0, %entry ], [ %add3, %for.body ]
|
|
%arrayidx = getelementptr inbounds double, double* %B, i32 %i.09
|
|
%0 = load double, double* %arrayidx, align 8
|
|
%arrayidx1 = getelementptr inbounds double, double* %C, i32 %i.09
|
|
%1 = load double, double* %arrayidx1, align 8
|
|
%add = fadd fast double %1, %0
|
|
%arrayidx2 = getelementptr inbounds double, double* %A, i32 %i.09
|
|
store double %add, double* %arrayidx2, align 8
|
|
%add3 = add nuw nsw i32 %i.09, 1
|
|
%exitcond = icmp eq i32 %add3, 431
|
|
br i1 %exitcond, label %for.cond.cleanup, label %for.body
|
|
}
|
|
|
|
define void @fptrunc_not_allowed(float* noalias nocapture %A, float* noalias nocapture readonly %B, float* noalias nocapture readonly %C, half* noalias nocapture %D) #0 {
|
|
; CHECK-LABEL: fptrunc_not_allowed(
|
|
; CHECK-NOT: vector.body:
|
|
; CHECK-NOT: llvm.masked.load
|
|
; CHECK-NOT: llvm.masked.store
|
|
; CHECK: br i1 %{{.*}}, label %{{.*}}, label %for.body
|
|
entry:
|
|
br label %for.body
|
|
|
|
for.cond.cleanup:
|
|
ret void
|
|
|
|
for.body:
|
|
%i.017 = phi i32 [ 0, %entry ], [ %add6, %for.body ]
|
|
%arrayidx = getelementptr inbounds float, float* %B, i32 %i.017
|
|
%0 = load float, float* %arrayidx, align 4
|
|
%arrayidx1 = getelementptr inbounds float, float* %C, i32 %i.017
|
|
%1 = load float, float* %arrayidx1, align 4
|
|
%add = fadd fast float %1, %0
|
|
%arrayidx2 = getelementptr inbounds float, float* %A, i32 %i.017
|
|
store float %add, float* %arrayidx2, align 4
|
|
%conv = fptrunc float %add to half
|
|
%factor = fmul fast half %conv, 0xH4000
|
|
%arrayidx5 = getelementptr inbounds half, half* %D, i32 %i.017
|
|
store half %factor, half* %arrayidx5, align 2
|
|
%add6 = add nuw nsw i32 %i.017, 1
|
|
%exitcond = icmp eq i32 %add6, 431
|
|
br i1 %exitcond, label %for.cond.cleanup, label %for.body
|
|
}
|
|
|
|
; This is a select which isn't a max or min (it isn't live-out), that we don't
|
|
; want to tail-fold. Because this select will result in some mov lanes,
|
|
; which aren't supported by the lowoverhead loop pass, causing the tail-predication
|
|
; to be reverted which is expensive and what we would like to avoid.
|
|
;
|
|
define dso_local void @select_not_allowed(i32* noalias nocapture %A, i32* noalias nocapture readonly %B, i32* noalias nocapture readonly %C, i32 %N, i32* noalias nocapture readonly %Cond) {
|
|
entry:
|
|
%cmp10 = icmp sgt i32 %N, 0
|
|
br i1 %cmp10, label %for.body.preheader, label %for.cond.cleanup
|
|
|
|
for.body.preheader: ; preds = %entry
|
|
br label %for.body
|
|
|
|
for.cond.cleanup.loopexit: ; preds = %for.body
|
|
br label %for.cond.cleanup
|
|
|
|
for.cond.cleanup: ; preds = %for.cond.cleanup.loopexit, %entry
|
|
ret void
|
|
|
|
for.body: ; preds = %for.body.preheader, %for.body
|
|
%i.011 = phi i32 [ %inc, %for.body ], [ 0, %for.body.preheader ]
|
|
%arrayidx = getelementptr inbounds i32, i32* %Cond, i32 %i.011
|
|
%0 = load i32, i32* %arrayidx, align 4
|
|
%tobool.not = icmp eq i32 %0, 0
|
|
%C.B = select i1 %tobool.not, i32* %C, i32* %B
|
|
%cond.in = getelementptr inbounds i32, i32* %C.B, i32 %i.011
|
|
%cond = load i32, i32* %cond.in, align 4
|
|
%arrayidx3 = getelementptr inbounds i32, i32* %A, i32 %i.011
|
|
store i32 %cond, i32* %arrayidx3, align 4
|
|
%inc = add nuw nsw i32 %i.011, 1
|
|
%exitcond.not = icmp eq i32 %inc, %N
|
|
br i1 %exitcond.not, label %for.cond.cleanup.loopexit, label %for.body
|
|
}
|
|
|
|
define i32 @i32_smin_reduction(i32* nocapture readonly %x, i32 %n) #0 {
|
|
; CHECK-LABEL: i32_smin_reduction(
|
|
; CHECK: vector.body:
|
|
; CHECK-NOT: @llvm.masked.load
|
|
; CHECK-NOT: @llvm.masked.store
|
|
; CHECK: br i1 %{{.*}}, label {{.*}}, label %vector.body
|
|
entry:
|
|
%cmp6 = icmp sgt i32 %n, 0
|
|
br i1 %cmp6, label %for.body, label %for.cond.cleanup
|
|
|
|
for.body: ; preds = %entry, %for.body
|
|
%i.08 = phi i32 [ %inc, %for.body ], [ 0, %entry ]
|
|
%r.07 = phi i32 [ %add, %for.body ], [ 2147483647, %entry ]
|
|
%arrayidx = getelementptr inbounds i32, i32* %x, i32 %i.08
|
|
%0 = load i32, i32* %arrayidx, align 4
|
|
%c = icmp slt i32 %r.07, %0
|
|
%add = select i1 %c, i32 %r.07, i32 %0
|
|
%inc = add nuw nsw i32 %i.08, 1
|
|
%exitcond = icmp eq i32 %inc, %n
|
|
br i1 %exitcond, label %for.cond.cleanup, label %for.body
|
|
|
|
for.cond.cleanup: ; preds = %for.body, %entry
|
|
%r.0.lcssa = phi i32 [ 2147483647, %entry ], [ %add, %for.body ]
|
|
ret i32 %r.0.lcssa
|
|
}
|
|
|
|
define i32 @i32_smax_reduction(i32* nocapture readonly %x, i32 %n) #0 {
|
|
; CHECK-LABEL: i32_smax_reduction(
|
|
; CHECK: vector.body:
|
|
; CHECK-NOT: @llvm.masked.load
|
|
; CHECK-NOT: @llvm.masked.store
|
|
; CHECK: br i1 %{{.*}}, label {{.*}}, label %vector.body
|
|
entry:
|
|
%cmp6 = icmp sgt i32 %n, 0
|
|
br i1 %cmp6, label %for.body, label %for.cond.cleanup
|
|
|
|
for.body: ; preds = %entry, %for.body
|
|
%i.08 = phi i32 [ %inc, %for.body ], [ 0, %entry ]
|
|
%r.07 = phi i32 [ %add, %for.body ], [ -2147483648, %entry ]
|
|
%arrayidx = getelementptr inbounds i32, i32* %x, i32 %i.08
|
|
%0 = load i32, i32* %arrayidx, align 4
|
|
%c = icmp sgt i32 %r.07, %0
|
|
%add = select i1 %c, i32 %r.07, i32 %0
|
|
%inc = add nuw nsw i32 %i.08, 1
|
|
%exitcond = icmp eq i32 %inc, %n
|
|
br i1 %exitcond, label %for.cond.cleanup, label %for.body
|
|
|
|
for.cond.cleanup: ; preds = %for.body, %entry
|
|
%r.0.lcssa = phi i32 [ -2147483648, %entry ], [ %add, %for.body ]
|
|
ret i32 %r.0.lcssa
|
|
}
|
|
|
|
define i32 @i32_umin_reduction(i32* nocapture readonly %x, i32 %n) #0 {
|
|
; CHECK-LABEL: i32_umin_reduction(
|
|
; CHECK: vector.body:
|
|
; CHECK-NOT: @llvm.masked.load
|
|
; CHECK-NOT: @llvm.masked.store
|
|
; CHECK: br i1 %{{.*}}, label {{.*}}, label %vector.body
|
|
entry:
|
|
%cmp6 = icmp sgt i32 %n, 0
|
|
br i1 %cmp6, label %for.body, label %for.cond.cleanup
|
|
|
|
for.body: ; preds = %entry, %for.body
|
|
%i.08 = phi i32 [ %inc, %for.body ], [ 0, %entry ]
|
|
%r.07 = phi i32 [ %add, %for.body ], [ 4294967295, %entry ]
|
|
%arrayidx = getelementptr inbounds i32, i32* %x, i32 %i.08
|
|
%0 = load i32, i32* %arrayidx, align 4
|
|
%c = icmp ult i32 %r.07, %0
|
|
%add = select i1 %c, i32 %r.07, i32 %0
|
|
%inc = add nuw nsw i32 %i.08, 1
|
|
%exitcond = icmp eq i32 %inc, %n
|
|
br i1 %exitcond, label %for.cond.cleanup, label %for.body
|
|
|
|
for.cond.cleanup: ; preds = %for.body, %entry
|
|
%r.0.lcssa = phi i32 [ 4294967295, %entry ], [ %add, %for.body ]
|
|
ret i32 %r.0.lcssa
|
|
}
|
|
|
|
define i32 @i32_umax_reduction(i32* nocapture readonly %x, i32 %n) #0 {
|
|
; CHECK-LABEL: i32_umax_reduction(
|
|
; CHECK: vector.body:
|
|
; CHECK-NOT: @llvm.masked.load
|
|
; CHECK-NOT: @llvm.masked.store
|
|
; CHECK: br i1 %{{.*}}, label {{.*}}, label %vector.body
|
|
entry:
|
|
%cmp6 = icmp sgt i32 %n, 0
|
|
br i1 %cmp6, label %for.body, label %for.cond.cleanup
|
|
|
|
for.body: ; preds = %entry, %for.body
|
|
%i.08 = phi i32 [ %inc, %for.body ], [ 0, %entry ]
|
|
%r.07 = phi i32 [ %add, %for.body ], [ 0, %entry ]
|
|
%arrayidx = getelementptr inbounds i32, i32* %x, i32 %i.08
|
|
%0 = load i32, i32* %arrayidx, align 4
|
|
%c = icmp ugt i32 %r.07, %0
|
|
%add = select i1 %c, i32 %r.07, i32 %0
|
|
%inc = add nuw nsw i32 %i.08, 1
|
|
%exitcond = icmp eq i32 %inc, %n
|
|
br i1 %exitcond, label %for.cond.cleanup, label %for.body
|
|
|
|
for.cond.cleanup: ; preds = %for.body, %entry
|
|
%r.0.lcssa = phi i32 [ 0, %entry ], [ %add, %for.body ]
|
|
ret i32 %r.0.lcssa
|
|
}
|
|
|
|
!10 = distinct !{!10, !11}
|
|
!11 = !{!"llvm.loop.vectorize.width", i32 4}
|