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|
; RUN: opt < %s -loop-reroll -S | FileCheck %s
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
; int foo(int a);
; void bar(int *x) {
; for (int i = 0; i < 500; i += 3) {
; foo(i);
; foo(i+1);
; foo(i+2);
; }
; }
; Function Attrs: nounwind uwtable
define void @bar(i32* nocapture readnone %x) #0 {
entry:
br label %for.body
for.body: ; preds = %for.body, %entry
%i.08 = phi i32 [ 0, %entry ], [ %add3, %for.body ]
%call = tail call i32 @foo(i32 %i.08) #1
%add = add nsw i32 %i.08, 1
%call1 = tail call i32 @foo(i32 %add) #1
%add2 = add nsw i32 %i.08, 2
%call3 = tail call i32 @foo(i32 %add2) #1
%add3 = add nsw i32 %i.08, 3
%exitcond = icmp eq i32 %add3, 500
br i1 %exitcond, label %for.end, label %for.body
; CHECK-LABEL: @bar
; CHECK: for.body:
; CHECK: %indvar = phi i32 [ %indvar.next, %for.body ], [ 0, %entry ]
; CHECK: %call = tail call i32 @foo(i32 %indvar) #1
; CHECK: %indvar.next = add i32 %indvar, 1
; CHECK: %exitcond1 = icmp eq i32 %indvar, 497
; CHECK: br i1 %exitcond1, label %for.end, label %for.body
; CHECK: ret
for.end: ; preds = %for.body
ret void
}
declare i32 @foo(i32)
; void hi1(int *x) {
; for (int i = 0; i < 1500; i += 3) {
; x[i] = foo(0);
; x[i+1] = foo(0);
; x[i+2] = foo(0);
; }
; }
; Function Attrs: nounwind uwtable
define void @hi1(i32* nocapture %x) #0 {
entry:
br label %for.body
for.body: ; preds = %entry, %for.body
%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
%call = tail call i32 @foo(i32 0) #1
%arrayidx = getelementptr inbounds i32* %x, i64 %indvars.iv
store i32 %call, i32* %arrayidx, align 4
%call1 = tail call i32 @foo(i32 0) #1
%0 = add nsw i64 %indvars.iv, 1
%arrayidx3 = getelementptr inbounds i32* %x, i64 %0
store i32 %call1, i32* %arrayidx3, align 4
%call4 = tail call i32 @foo(i32 0) #1
%1 = add nsw i64 %indvars.iv, 2
%arrayidx7 = getelementptr inbounds i32* %x, i64 %1
store i32 %call4, i32* %arrayidx7, align 4
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 3
%2 = trunc i64 %indvars.iv.next to i32
%cmp = icmp slt i32 %2, 1500
br i1 %cmp, label %for.body, label %for.end
; CHECK-LABEL: @hi1
; CHECK: for.body:
; CHECK: %indvar = phi i64 [ %indvar.next, %for.body ], [ 0, %entry ]
; CHECK: %call = tail call i32 @foo(i32 0) #1
; CHECK: %arrayidx = getelementptr inbounds i32* %x, i64 %indvar
; CHECK: store i32 %call, i32* %arrayidx, align 4
; CHECK: %indvar.next = add i64 %indvar, 1
; CHECK: %exitcond = icmp eq i64 %indvar, 1499
; CHECK: br i1 %exitcond, label %for.end, label %for.body
; CHECK: ret
for.end: ; preds = %for.body
ret void
}
; void hi2(int *x) {
; for (int i = 0; i < 500; ++i) {
; x[3*i] = foo(0);
; x[3*i+1] = foo(0);
; x[3*i+2] = foo(0);
; }
; }
; Function Attrs: nounwind uwtable
define void @hi2(i32* nocapture %x) #0 {
entry:
br label %for.body
for.body: ; preds = %for.body, %entry
%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
%call = tail call i32 @foo(i32 0) #1
%0 = mul nsw i64 %indvars.iv, 3
%arrayidx = getelementptr inbounds i32* %x, i64 %0
store i32 %call, i32* %arrayidx, align 4
%call1 = tail call i32 @foo(i32 0) #1
%1 = add nsw i64 %0, 1
%arrayidx4 = getelementptr inbounds i32* %x, i64 %1
store i32 %call1, i32* %arrayidx4, align 4
%call5 = tail call i32 @foo(i32 0) #1
%2 = add nsw i64 %0, 2
%arrayidx9 = getelementptr inbounds i32* %x, i64 %2
store i32 %call5, i32* %arrayidx9, align 4
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
%exitcond = icmp eq i64 %indvars.iv.next, 500
br i1 %exitcond, label %for.end, label %for.body
; CHECK-LABEL: @hi2
; CHECK: for.body:
; CHECK: %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
; CHECK: %call = tail call i32 @foo(i32 0) #1
; CHECK: %arrayidx = getelementptr inbounds i32* %x, i64 %indvars.iv
; CHECK: store i32 %call, i32* %arrayidx, align 4
; CHECK: %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
; CHECK: %exitcond1 = icmp eq i64 %indvars.iv, 1499
; CHECK: br i1 %exitcond1, label %for.end, label %for.body
; CHECK: ret
for.end: ; preds = %for.body
ret void
}
; void goo(float alpha, float *a, float *b) {
; for (int i = 0; i < 3200; i += 5) {
; a[i] += alpha * b[i];
; a[i + 1] += alpha * b[i + 1];
; a[i + 2] += alpha * b[i + 2];
; a[i + 3] += alpha * b[i + 3];
; a[i + 4] += alpha * b[i + 4];
; }
; }
; Function Attrs: nounwind uwtable
define void @goo(float %alpha, float* nocapture %a, float* nocapture readonly %b) #0 {
entry:
br label %for.body
for.body: ; preds = %entry, %for.body
%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
%arrayidx = getelementptr inbounds float* %b, i64 %indvars.iv
%0 = load float* %arrayidx, align 4
%mul = fmul float %0, %alpha
%arrayidx2 = getelementptr inbounds float* %a, i64 %indvars.iv
%1 = load float* %arrayidx2, align 4
%add = fadd float %1, %mul
store float %add, float* %arrayidx2, align 4
%2 = add nsw i64 %indvars.iv, 1
%arrayidx5 = getelementptr inbounds float* %b, i64 %2
%3 = load float* %arrayidx5, align 4
%mul6 = fmul float %3, %alpha
%arrayidx9 = getelementptr inbounds float* %a, i64 %2
%4 = load float* %arrayidx9, align 4
%add10 = fadd float %4, %mul6
store float %add10, float* %arrayidx9, align 4
%5 = add nsw i64 %indvars.iv, 2
%arrayidx13 = getelementptr inbounds float* %b, i64 %5
%6 = load float* %arrayidx13, align 4
%mul14 = fmul float %6, %alpha
%arrayidx17 = getelementptr inbounds float* %a, i64 %5
%7 = load float* %arrayidx17, align 4
%add18 = fadd float %7, %mul14
store float %add18, float* %arrayidx17, align 4
%8 = add nsw i64 %indvars.iv, 3
%arrayidx21 = getelementptr inbounds float* %b, i64 %8
%9 = load float* %arrayidx21, align 4
%mul22 = fmul float %9, %alpha
%arrayidx25 = getelementptr inbounds float* %a, i64 %8
%10 = load float* %arrayidx25, align 4
%add26 = fadd float %10, %mul22
store float %add26, float* %arrayidx25, align 4
%11 = add nsw i64 %indvars.iv, 4
%arrayidx29 = getelementptr inbounds float* %b, i64 %11
%12 = load float* %arrayidx29, align 4
%mul30 = fmul float %12, %alpha
%arrayidx33 = getelementptr inbounds float* %a, i64 %11
%13 = load float* %arrayidx33, align 4
%add34 = fadd float %13, %mul30
store float %add34, float* %arrayidx33, align 4
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 5
%14 = trunc i64 %indvars.iv.next to i32
%cmp = icmp slt i32 %14, 3200
br i1 %cmp, label %for.body, label %for.end
; CHECK-LABEL: @goo
; CHECK: for.body:
; CHECK: %indvar = phi i64 [ %indvar.next, %for.body ], [ 0, %entry ]
; CHECK: %arrayidx = getelementptr inbounds float* %b, i64 %indvar
; CHECK: %0 = load float* %arrayidx, align 4
; CHECK: %mul = fmul float %0, %alpha
; CHECK: %arrayidx2 = getelementptr inbounds float* %a, i64 %indvar
; CHECK: %1 = load float* %arrayidx2, align 4
; CHECK: %add = fadd float %1, %mul
; CHECK: store float %add, float* %arrayidx2, align 4
; CHECK: %indvar.next = add i64 %indvar, 1
; CHECK: %exitcond = icmp eq i64 %indvar, 3199
; CHECK: br i1 %exitcond, label %for.end, label %for.body
; CHECK: ret
for.end: ; preds = %for.body
ret void
}
; void hoo(float alpha, float *a, float *b, int *ip) {
; for (int i = 0; i < 3200; i += 5) {
; a[i] += alpha * b[ip[i]];
; a[i + 1] += alpha * b[ip[i + 1]];
; a[i + 2] += alpha * b[ip[i + 2]];
; a[i + 3] += alpha * b[ip[i + 3]];
; a[i + 4] += alpha * b[ip[i + 4]];
; }
; }
; Function Attrs: nounwind uwtable
define void @hoo(float %alpha, float* nocapture %a, float* nocapture readonly %b, i32* nocapture readonly %ip) #0 {
entry:
br label %for.body
for.body: ; preds = %entry, %for.body
%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
%arrayidx = getelementptr inbounds i32* %ip, i64 %indvars.iv
%0 = load i32* %arrayidx, align 4
%idxprom1 = sext i32 %0 to i64
%arrayidx2 = getelementptr inbounds float* %b, i64 %idxprom1
%1 = load float* %arrayidx2, align 4
%mul = fmul float %1, %alpha
%arrayidx4 = getelementptr inbounds float* %a, i64 %indvars.iv
%2 = load float* %arrayidx4, align 4
%add = fadd float %2, %mul
store float %add, float* %arrayidx4, align 4
%3 = add nsw i64 %indvars.iv, 1
%arrayidx7 = getelementptr inbounds i32* %ip, i64 %3
%4 = load i32* %arrayidx7, align 4
%idxprom8 = sext i32 %4 to i64
%arrayidx9 = getelementptr inbounds float* %b, i64 %idxprom8
%5 = load float* %arrayidx9, align 4
%mul10 = fmul float %5, %alpha
%arrayidx13 = getelementptr inbounds float* %a, i64 %3
%6 = load float* %arrayidx13, align 4
%add14 = fadd float %6, %mul10
store float %add14, float* %arrayidx13, align 4
%7 = add nsw i64 %indvars.iv, 2
%arrayidx17 = getelementptr inbounds i32* %ip, i64 %7
%8 = load i32* %arrayidx17, align 4
%idxprom18 = sext i32 %8 to i64
%arrayidx19 = getelementptr inbounds float* %b, i64 %idxprom18
%9 = load float* %arrayidx19, align 4
%mul20 = fmul float %9, %alpha
%arrayidx23 = getelementptr inbounds float* %a, i64 %7
%10 = load float* %arrayidx23, align 4
%add24 = fadd float %10, %mul20
store float %add24, float* %arrayidx23, align 4
%11 = add nsw i64 %indvars.iv, 3
%arrayidx27 = getelementptr inbounds i32* %ip, i64 %11
%12 = load i32* %arrayidx27, align 4
%idxprom28 = sext i32 %12 to i64
%arrayidx29 = getelementptr inbounds float* %b, i64 %idxprom28
%13 = load float* %arrayidx29, align 4
%mul30 = fmul float %13, %alpha
%arrayidx33 = getelementptr inbounds float* %a, i64 %11
%14 = load float* %arrayidx33, align 4
%add34 = fadd float %14, %mul30
store float %add34, float* %arrayidx33, align 4
%15 = add nsw i64 %indvars.iv, 4
%arrayidx37 = getelementptr inbounds i32* %ip, i64 %15
%16 = load i32* %arrayidx37, align 4
%idxprom38 = sext i32 %16 to i64
%arrayidx39 = getelementptr inbounds float* %b, i64 %idxprom38
%17 = load float* %arrayidx39, align 4
%mul40 = fmul float %17, %alpha
%arrayidx43 = getelementptr inbounds float* %a, i64 %15
%18 = load float* %arrayidx43, align 4
%add44 = fadd float %18, %mul40
store float %add44, float* %arrayidx43, align 4
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 5
%19 = trunc i64 %indvars.iv.next to i32
%cmp = icmp slt i32 %19, 3200
br i1 %cmp, label %for.body, label %for.end
; CHECK-LABEL: @hoo
; CHECK: for.body:
; CHECK: %indvar = phi i64 [ %indvar.next, %for.body ], [ 0, %entry ]
; CHECK: %arrayidx = getelementptr inbounds i32* %ip, i64 %indvar
; CHECK: %0 = load i32* %arrayidx, align 4
; CHECK: %idxprom1 = sext i32 %0 to i64
; CHECK: %arrayidx2 = getelementptr inbounds float* %b, i64 %idxprom1
; CHECK: %1 = load float* %arrayidx2, align 4
; CHECK: %mul = fmul float %1, %alpha
; CHECK: %arrayidx4 = getelementptr inbounds float* %a, i64 %indvar
; CHECK: %2 = load float* %arrayidx4, align 4
; CHECK: %add = fadd float %2, %mul
; CHECK: store float %add, float* %arrayidx4, align 4
; CHECK: %indvar.next = add i64 %indvar, 1
; CHECK: %exitcond = icmp eq i64 %indvar, 3199
; CHECK: br i1 %exitcond, label %for.end, label %for.body
; CHECK: ret
for.end: ; preds = %for.body
ret void
}
attributes #0 = { nounwind uwtable }
attributes #1 = { nounwind }
|
