338 lines
14 KiB
LLVM
338 lines
14 KiB
LLVM
; RUN: opt < %s -basicaa -slp-vectorizer -S | FileCheck %s
|
|
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
|
|
target triple = "x86_64-apple-macosx10.9.0"
|
|
|
|
@A = common global [2000 x double] zeroinitializer, align 16
|
|
@B = common global [2000 x double] zeroinitializer, align 16
|
|
@C = common global [2000 x float] zeroinitializer, align 16
|
|
@D = common global [2000 x float] zeroinitializer, align 16
|
|
|
|
; Currently SCEV isn't smart enough to figure out that accesses
|
|
; A[3*i], A[3*i+1] and A[3*i+2] are consecutive, but in future
|
|
; that would hopefully be fixed. For now, check that this isn't
|
|
; vectorized.
|
|
; CHECK-LABEL: foo_3double
|
|
; CHECK-NOT: x double>
|
|
; Function Attrs: nounwind ssp uwtable
|
|
define void @foo_3double(i32 %u) #0 {
|
|
entry:
|
|
%u.addr = alloca i32, align 4
|
|
store i32 %u, i32* %u.addr, align 4
|
|
%mul = mul nsw i32 %u, 3
|
|
%idxprom = sext i32 %mul to i64
|
|
%arrayidx = getelementptr inbounds [2000 x double], [2000 x double]* @A, i32 0, i64 %idxprom
|
|
%0 = load double, double* %arrayidx, align 8
|
|
%arrayidx4 = getelementptr inbounds [2000 x double], [2000 x double]* @B, i32 0, i64 %idxprom
|
|
%1 = load double, double* %arrayidx4, align 8
|
|
%add5 = fadd double %0, %1
|
|
store double %add5, double* %arrayidx, align 8
|
|
%add11 = add nsw i32 %mul, 1
|
|
%idxprom12 = sext i32 %add11 to i64
|
|
%arrayidx13 = getelementptr inbounds [2000 x double], [2000 x double]* @A, i32 0, i64 %idxprom12
|
|
%2 = load double, double* %arrayidx13, align 8
|
|
%arrayidx17 = getelementptr inbounds [2000 x double], [2000 x double]* @B, i32 0, i64 %idxprom12
|
|
%3 = load double, double* %arrayidx17, align 8
|
|
%add18 = fadd double %2, %3
|
|
store double %add18, double* %arrayidx13, align 8
|
|
%add24 = add nsw i32 %mul, 2
|
|
%idxprom25 = sext i32 %add24 to i64
|
|
%arrayidx26 = getelementptr inbounds [2000 x double], [2000 x double]* @A, i32 0, i64 %idxprom25
|
|
%4 = load double, double* %arrayidx26, align 8
|
|
%arrayidx30 = getelementptr inbounds [2000 x double], [2000 x double]* @B, i32 0, i64 %idxprom25
|
|
%5 = load double, double* %arrayidx30, align 8
|
|
%add31 = fadd double %4, %5
|
|
store double %add31, double* %arrayidx26, align 8
|
|
ret void
|
|
}
|
|
|
|
; SCEV should be able to tell that accesses A[C1 + C2*i], A[C1 + C2*i], ...
|
|
; A[C1 + C2*i] are consecutive, if C2 is a power of 2, and C2 > C1 > 0.
|
|
; Thus, the following code should be vectorized.
|
|
; CHECK-LABEL: foo_2double
|
|
; CHECK: x double>
|
|
; Function Attrs: nounwind ssp uwtable
|
|
define void @foo_2double(i32 %u) #0 {
|
|
entry:
|
|
%u.addr = alloca i32, align 4
|
|
store i32 %u, i32* %u.addr, align 4
|
|
%mul = mul nsw i32 %u, 2
|
|
%idxprom = sext i32 %mul to i64
|
|
%arrayidx = getelementptr inbounds [2000 x double], [2000 x double]* @A, i32 0, i64 %idxprom
|
|
%0 = load double, double* %arrayidx, align 8
|
|
%arrayidx4 = getelementptr inbounds [2000 x double], [2000 x double]* @B, i32 0, i64 %idxprom
|
|
%1 = load double, double* %arrayidx4, align 8
|
|
%add5 = fadd double %0, %1
|
|
store double %add5, double* %arrayidx, align 8
|
|
%add11 = add nsw i32 %mul, 1
|
|
%idxprom12 = sext i32 %add11 to i64
|
|
%arrayidx13 = getelementptr inbounds [2000 x double], [2000 x double]* @A, i32 0, i64 %idxprom12
|
|
%2 = load double, double* %arrayidx13, align 8
|
|
%arrayidx17 = getelementptr inbounds [2000 x double], [2000 x double]* @B, i32 0, i64 %idxprom12
|
|
%3 = load double, double* %arrayidx17, align 8
|
|
%add18 = fadd double %2, %3
|
|
store double %add18, double* %arrayidx13, align 8
|
|
ret void
|
|
}
|
|
|
|
; Similar to the previous test, but with different datatype.
|
|
; CHECK-LABEL: foo_4float
|
|
; CHECK: x float>
|
|
; Function Attrs: nounwind ssp uwtable
|
|
define void @foo_4float(i32 %u) #0 {
|
|
entry:
|
|
%u.addr = alloca i32, align 4
|
|
store i32 %u, i32* %u.addr, align 4
|
|
%mul = mul nsw i32 %u, 4
|
|
%idxprom = sext i32 %mul to i64
|
|
%arrayidx = getelementptr inbounds [2000 x float], [2000 x float]* @C, i32 0, i64 %idxprom
|
|
%0 = load float, float* %arrayidx, align 4
|
|
%arrayidx4 = getelementptr inbounds [2000 x float], [2000 x float]* @D, i32 0, i64 %idxprom
|
|
%1 = load float, float* %arrayidx4, align 4
|
|
%add5 = fadd float %0, %1
|
|
store float %add5, float* %arrayidx, align 4
|
|
%add11 = add nsw i32 %mul, 1
|
|
%idxprom12 = sext i32 %add11 to i64
|
|
%arrayidx13 = getelementptr inbounds [2000 x float], [2000 x float]* @C, i32 0, i64 %idxprom12
|
|
%2 = load float, float* %arrayidx13, align 4
|
|
%arrayidx17 = getelementptr inbounds [2000 x float], [2000 x float]* @D, i32 0, i64 %idxprom12
|
|
%3 = load float, float* %arrayidx17, align 4
|
|
%add18 = fadd float %2, %3
|
|
store float %add18, float* %arrayidx13, align 4
|
|
%add24 = add nsw i32 %mul, 2
|
|
%idxprom25 = sext i32 %add24 to i64
|
|
%arrayidx26 = getelementptr inbounds [2000 x float], [2000 x float]* @C, i32 0, i64 %idxprom25
|
|
%4 = load float, float* %arrayidx26, align 4
|
|
%arrayidx30 = getelementptr inbounds [2000 x float], [2000 x float]* @D, i32 0, i64 %idxprom25
|
|
%5 = load float, float* %arrayidx30, align 4
|
|
%add31 = fadd float %4, %5
|
|
store float %add31, float* %arrayidx26, align 4
|
|
%add37 = add nsw i32 %mul, 3
|
|
%idxprom38 = sext i32 %add37 to i64
|
|
%arrayidx39 = getelementptr inbounds [2000 x float], [2000 x float]* @C, i32 0, i64 %idxprom38
|
|
%6 = load float, float* %arrayidx39, align 4
|
|
%arrayidx43 = getelementptr inbounds [2000 x float], [2000 x float]* @D, i32 0, i64 %idxprom38
|
|
%7 = load float, float* %arrayidx43, align 4
|
|
%add44 = fadd float %6, %7
|
|
store float %add44, float* %arrayidx39, align 4
|
|
ret void
|
|
}
|
|
|
|
; Similar to the previous tests, but now we are dealing with AddRec SCEV.
|
|
; CHECK-LABEL: foo_loop
|
|
; CHECK: x double>
|
|
; Function Attrs: nounwind ssp uwtable
|
|
define i32 @foo_loop(double* %A, i32 %n) #0 {
|
|
entry:
|
|
%A.addr = alloca double*, align 8
|
|
%n.addr = alloca i32, align 4
|
|
%sum = alloca double, align 8
|
|
%i = alloca i32, align 4
|
|
store double* %A, double** %A.addr, align 8
|
|
store i32 %n, i32* %n.addr, align 4
|
|
store double 0.000000e+00, double* %sum, align 8
|
|
store i32 0, i32* %i, align 4
|
|
%cmp1 = icmp slt i32 0, %n
|
|
br i1 %cmp1, label %for.body.lr.ph, label %for.end
|
|
|
|
for.body.lr.ph: ; preds = %entry
|
|
br label %for.body
|
|
|
|
for.body: ; preds = %for.body.lr.ph, %for.body
|
|
%0 = phi i32 [ 0, %for.body.lr.ph ], [ %inc, %for.body ]
|
|
%1 = phi double [ 0.000000e+00, %for.body.lr.ph ], [ %add7, %for.body ]
|
|
%mul = mul nsw i32 %0, 2
|
|
%idxprom = sext i32 %mul to i64
|
|
%arrayidx = getelementptr inbounds double, double* %A, i64 %idxprom
|
|
%2 = load double, double* %arrayidx, align 8
|
|
%mul1 = fmul double 7.000000e+00, %2
|
|
%add = add nsw i32 %mul, 1
|
|
%idxprom3 = sext i32 %add to i64
|
|
%arrayidx4 = getelementptr inbounds double, double* %A, i64 %idxprom3
|
|
%3 = load double, double* %arrayidx4, align 8
|
|
%mul5 = fmul double 7.000000e+00, %3
|
|
%add6 = fadd double %mul1, %mul5
|
|
%add7 = fadd double %1, %add6
|
|
store double %add7, double* %sum, align 8
|
|
%inc = add nsw i32 %0, 1
|
|
store i32 %inc, i32* %i, align 4
|
|
%cmp = icmp slt i32 %inc, %n
|
|
br i1 %cmp, label %for.body, label %for.cond.for.end_crit_edge
|
|
|
|
for.cond.for.end_crit_edge: ; preds = %for.body
|
|
%split = phi double [ %add7, %for.body ]
|
|
br label %for.end
|
|
|
|
for.end: ; preds = %for.cond.for.end_crit_edge, %entry
|
|
%.lcssa = phi double [ %split, %for.cond.for.end_crit_edge ], [ 0.000000e+00, %entry ]
|
|
%conv = fptosi double %.lcssa to i32
|
|
ret i32 %conv
|
|
}
|
|
|
|
; Similar to foo_2double but with a non-power-of-2 factor and potential
|
|
; wrapping (both indices wrap or both don't in the same time)
|
|
; CHECK-LABEL: foo_2double_non_power_of_2
|
|
; CHECK: load <2 x double>
|
|
; CHECK: load <2 x double>
|
|
; Function Attrs: nounwind ssp uwtable
|
|
define void @foo_2double_non_power_of_2(i32 %u) #0 {
|
|
entry:
|
|
%u.addr = alloca i32, align 4
|
|
store i32 %u, i32* %u.addr, align 4
|
|
%mul = mul i32 %u, 6
|
|
%add6 = add i32 %mul, 6
|
|
%idxprom = sext i32 %add6 to i64
|
|
%arrayidx = getelementptr inbounds [2000 x double], [2000 x double]* @A, i32 0, i64 %idxprom
|
|
%0 = load double, double* %arrayidx, align 8
|
|
%arrayidx4 = getelementptr inbounds [2000 x double], [2000 x double]* @B, i32 0, i64 %idxprom
|
|
%1 = load double, double* %arrayidx4, align 8
|
|
%add5 = fadd double %0, %1
|
|
store double %add5, double* %arrayidx, align 8
|
|
%add7 = add i32 %mul, 7
|
|
%idxprom12 = sext i32 %add7 to i64
|
|
%arrayidx13 = getelementptr inbounds [2000 x double], [2000 x double]* @A, i32 0, i64 %idxprom12
|
|
%2 = load double, double* %arrayidx13, align 8
|
|
%arrayidx17 = getelementptr inbounds [2000 x double], [2000 x double]* @B, i32 0, i64 %idxprom12
|
|
%3 = load double, double* %arrayidx17, align 8
|
|
%add18 = fadd double %2, %3
|
|
store double %add18, double* %arrayidx13, align 8
|
|
ret void
|
|
}
|
|
|
|
; Similar to foo_2double_non_power_of_2 but with zext's instead of sext's
|
|
; CHECK-LABEL: foo_2double_non_power_of_2_zext
|
|
; CHECK: load <2 x double>
|
|
; CHECK: load <2 x double>
|
|
; Function Attrs: nounwind ssp uwtable
|
|
define void @foo_2double_non_power_of_2_zext(i32 %u) #0 {
|
|
entry:
|
|
%u.addr = alloca i32, align 4
|
|
store i32 %u, i32* %u.addr, align 4
|
|
%mul = mul i32 %u, 6
|
|
%add6 = add i32 %mul, 6
|
|
%idxprom = zext i32 %add6 to i64
|
|
%arrayidx = getelementptr inbounds [2000 x double], [2000 x double]* @A, i32 0, i64 %idxprom
|
|
%0 = load double, double* %arrayidx, align 8
|
|
%arrayidx4 = getelementptr inbounds [2000 x double], [2000 x double]* @B, i32 0, i64 %idxprom
|
|
%1 = load double, double* %arrayidx4, align 8
|
|
%add5 = fadd double %0, %1
|
|
store double %add5, double* %arrayidx, align 8
|
|
%add7 = add i32 %mul, 7
|
|
%idxprom12 = zext i32 %add7 to i64
|
|
%arrayidx13 = getelementptr inbounds [2000 x double], [2000 x double]* @A, i32 0, i64 %idxprom12
|
|
%2 = load double, double* %arrayidx13, align 8
|
|
%arrayidx17 = getelementptr inbounds [2000 x double], [2000 x double]* @B, i32 0, i64 %idxprom12
|
|
%3 = load double, double* %arrayidx17, align 8
|
|
%add18 = fadd double %2, %3
|
|
store double %add18, double* %arrayidx13, align 8
|
|
ret void
|
|
}
|
|
|
|
; Similar to foo_2double_non_power_of_2, but now we are dealing with AddRec SCEV.
|
|
; Alternatively, this is like foo_loop, but with a non-power-of-2 factor and
|
|
; potential wrapping (both indices wrap or both don't in the same time)
|
|
; CHECK-LABEL: foo_loop_non_power_of_2
|
|
; CHECK: <2 x double>
|
|
; Function Attrs: nounwind ssp uwtable
|
|
define i32 @foo_loop_non_power_of_2(double* %A, i32 %n) #0 {
|
|
entry:
|
|
%A.addr = alloca double*, align 8
|
|
%n.addr = alloca i32, align 4
|
|
%sum = alloca double, align 8
|
|
%i = alloca i32, align 4
|
|
store double* %A, double** %A.addr, align 8
|
|
store i32 %n, i32* %n.addr, align 4
|
|
store double 0.000000e+00, double* %sum, align 8
|
|
store i32 0, i32* %i, align 4
|
|
%cmp1 = icmp slt i32 0, %n
|
|
br i1 %cmp1, label %for.body.lr.ph, label %for.end
|
|
|
|
for.body.lr.ph: ; preds = %entry
|
|
br label %for.body
|
|
|
|
for.body: ; preds = %for.body.lr.ph, %for.body
|
|
%0 = phi i32 [ 0, %for.body.lr.ph ], [ %inc, %for.body ]
|
|
%1 = phi double [ 0.000000e+00, %for.body.lr.ph ], [ %add7, %for.body ]
|
|
%mul = mul i32 %0, 12
|
|
%add.5 = add i32 %mul, 5
|
|
%idxprom = sext i32 %add.5 to i64
|
|
%arrayidx = getelementptr inbounds double, double* %A, i64 %idxprom
|
|
%2 = load double, double* %arrayidx, align 8
|
|
%mul1 = fmul double 7.000000e+00, %2
|
|
%add.6 = add i32 %mul, 6
|
|
%idxprom3 = sext i32 %add.6 to i64
|
|
%arrayidx4 = getelementptr inbounds double, double* %A, i64 %idxprom3
|
|
%3 = load double, double* %arrayidx4, align 8
|
|
%mul5 = fmul double 7.000000e+00, %3
|
|
%add6 = fadd double %mul1, %mul5
|
|
%add7 = fadd double %1, %add6
|
|
store double %add7, double* %sum, align 8
|
|
%inc = add i32 %0, 1
|
|
store i32 %inc, i32* %i, align 4
|
|
%cmp = icmp slt i32 %inc, %n
|
|
br i1 %cmp, label %for.body, label %for.cond.for.end_crit_edge
|
|
|
|
for.cond.for.end_crit_edge: ; preds = %for.body
|
|
%split = phi double [ %add7, %for.body ]
|
|
br label %for.end
|
|
|
|
for.end: ; preds = %for.cond.for.end_crit_edge, %entry
|
|
%.lcssa = phi double [ %split, %for.cond.for.end_crit_edge ], [ 0.000000e+00, %entry ]
|
|
%conv = fptosi double %.lcssa to i32
|
|
ret i32 %conv
|
|
}
|
|
|
|
; This is generated by `clang -std=c11 -Wpedantic -Wall -O3 main.c -S -o - -emit-llvm`
|
|
; with !{!"clang version 7.0.0 (trunk 337339) (llvm/trunk 337344)"} and stripping off
|
|
; the !tbaa metadata nodes to fit the rest of the test file, where `cat main.c` is:
|
|
;
|
|
; double bar(double *a, unsigned n) {
|
|
; double x = 0.0;
|
|
; double y = 0.0;
|
|
; for (unsigned i = 0; i < n; i += 2) {
|
|
; x += a[i];
|
|
; y += a[i + 1];
|
|
; }
|
|
; return x * y;
|
|
; }
|
|
;
|
|
; The resulting IR is similar to @foo_loop, but with zext's instead of sext's.
|
|
;
|
|
; Make sure we are able to vectorize this from now on:
|
|
;
|
|
; CHECK-LABEL: @bar
|
|
; CHECK: load <2 x double>
|
|
define double @bar(double* nocapture readonly %a, i32 %n) local_unnamed_addr #0 {
|
|
entry:
|
|
%cmp15 = icmp eq i32 %n, 0
|
|
br i1 %cmp15, label %for.cond.cleanup, label %for.body
|
|
|
|
for.cond.cleanup: ; preds = %for.body, %entry
|
|
%x.0.lcssa = phi double [ 0.000000e+00, %entry ], [ %add, %for.body ]
|
|
%y.0.lcssa = phi double [ 0.000000e+00, %entry ], [ %add4, %for.body ]
|
|
%mul = fmul double %x.0.lcssa, %y.0.lcssa
|
|
ret double %mul
|
|
|
|
for.body: ; preds = %entry, %for.body
|
|
%i.018 = phi i32 [ %add5, %for.body ], [ 0, %entry ]
|
|
%y.017 = phi double [ %add4, %for.body ], [ 0.000000e+00, %entry ]
|
|
%x.016 = phi double [ %add, %for.body ], [ 0.000000e+00, %entry ]
|
|
%idxprom = zext i32 %i.018 to i64
|
|
%arrayidx = getelementptr inbounds double, double* %a, i64 %idxprom
|
|
%0 = load double, double* %arrayidx, align 8
|
|
%add = fadd double %x.016, %0
|
|
%add1 = or i32 %i.018, 1
|
|
%idxprom2 = zext i32 %add1 to i64
|
|
%arrayidx3 = getelementptr inbounds double, double* %a, i64 %idxprom2
|
|
%1 = load double, double* %arrayidx3, align 8
|
|
%add4 = fadd double %y.017, %1
|
|
%add5 = add i32 %i.018, 2
|
|
%cmp = icmp ult i32 %add5, %n
|
|
br i1 %cmp, label %for.body, label %for.cond.cleanup
|
|
}
|
|
|
|
attributes #0 = { nounwind ssp uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
|
|
|
|
!llvm.ident = !{!0}
|
|
|
|
!0 = !{!"clang version 3.5.0 "}
|