| ; 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 sge 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, 500 |
| ; 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, 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, 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, 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: %0 = trunc i64 %indvar to i32 |
| ; CHECK: %call = tail call i32 @foo(i32 0) #1 |
| ; CHECK: %arrayidx = getelementptr inbounds i32, i32* %x, i64 %indvar |
| ; CHECK: store i32 %call, i32* %arrayidx, align 4 |
| ; CHECK: %indvar.next = add i64 %indvar, 1 |
| ; CHECK: %exitcond = icmp eq i32 %0, 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, 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, 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, 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, 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, float* %b, i64 %indvars.iv |
| %0 = load float, float* %arrayidx, align 4 |
| %mul = fmul float %0, %alpha |
| %arrayidx2 = getelementptr inbounds float, float* %a, i64 %indvars.iv |
| %1 = load float, 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, float* %b, i64 %2 |
| %3 = load float, float* %arrayidx5, align 4 |
| %mul6 = fmul float %3, %alpha |
| %arrayidx9 = getelementptr inbounds float, float* %a, i64 %2 |
| %4 = load float, 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, float* %b, i64 %5 |
| %6 = load float, float* %arrayidx13, align 4 |
| %mul14 = fmul float %6, %alpha |
| %arrayidx17 = getelementptr inbounds float, float* %a, i64 %5 |
| %7 = load float, 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, float* %b, i64 %8 |
| %9 = load float, float* %arrayidx21, align 4 |
| %mul22 = fmul float %9, %alpha |
| %arrayidx25 = getelementptr inbounds float, float* %a, i64 %8 |
| %10 = load float, 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, float* %b, i64 %11 |
| %12 = load float, float* %arrayidx29, align 4 |
| %mul30 = fmul float %12, %alpha |
| %arrayidx33 = getelementptr inbounds float, float* %a, i64 %11 |
| %13 = load float, 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: %0 = trunc i64 %indvar to i32 |
| ; CHECK: %arrayidx = getelementptr inbounds float, float* %b, i64 %indvar |
| ; CHECK: %1 = load float, float* %arrayidx, align 4 |
| ; CHECK: %mul = fmul float %1, %alpha |
| ; CHECK: %arrayidx2 = getelementptr inbounds float, float* %a, i64 %indvar |
| ; CHECK: %2 = load float, float* %arrayidx2, align 4 |
| ; CHECK: %add = fadd float %2, %mul |
| ; CHECK: store float %add, float* %arrayidx2, align 4 |
| ; CHECK: %indvar.next = add i64 %indvar, 1 |
| ; CHECK: %exitcond = icmp eq i32 %0, 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, i32* %ip, i64 %indvars.iv |
| %0 = load i32, i32* %arrayidx, align 4 |
| %idxprom1 = sext i32 %0 to i64 |
| %arrayidx2 = getelementptr inbounds float, float* %b, i64 %idxprom1 |
| %1 = load float, float* %arrayidx2, align 4 |
| %mul = fmul float %1, %alpha |
| %arrayidx4 = getelementptr inbounds float, float* %a, i64 %indvars.iv |
| %2 = load float, 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, i32* %ip, i64 %3 |
| %4 = load i32, i32* %arrayidx7, align 4 |
| %idxprom8 = sext i32 %4 to i64 |
| %arrayidx9 = getelementptr inbounds float, float* %b, i64 %idxprom8 |
| %5 = load float, float* %arrayidx9, align 4 |
| %mul10 = fmul float %5, %alpha |
| %arrayidx13 = getelementptr inbounds float, float* %a, i64 %3 |
| %6 = load float, 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, i32* %ip, i64 %7 |
| %8 = load i32, i32* %arrayidx17, align 4 |
| %idxprom18 = sext i32 %8 to i64 |
| %arrayidx19 = getelementptr inbounds float, float* %b, i64 %idxprom18 |
| %9 = load float, float* %arrayidx19, align 4 |
| %mul20 = fmul float %9, %alpha |
| %arrayidx23 = getelementptr inbounds float, float* %a, i64 %7 |
| %10 = load float, 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, i32* %ip, i64 %11 |
| %12 = load i32, i32* %arrayidx27, align 4 |
| %idxprom28 = sext i32 %12 to i64 |
| %arrayidx29 = getelementptr inbounds float, float* %b, i64 %idxprom28 |
| %13 = load float, float* %arrayidx29, align 4 |
| %mul30 = fmul float %13, %alpha |
| %arrayidx33 = getelementptr inbounds float, float* %a, i64 %11 |
| %14 = load float, 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, i32* %ip, i64 %15 |
| %16 = load i32, i32* %arrayidx37, align 4 |
| %idxprom38 = sext i32 %16 to i64 |
| %arrayidx39 = getelementptr inbounds float, float* %b, i64 %idxprom38 |
| %17 = load float, float* %arrayidx39, align 4 |
| %mul40 = fmul float %17, %alpha |
| %arrayidx43 = getelementptr inbounds float, float* %a, i64 %15 |
| %18 = load float, 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: %0 = trunc i64 %indvar to i32 |
| ; CHECK: %arrayidx = getelementptr inbounds i32, i32* %ip, i64 %indvar |
| ; CHECK: %1 = load i32, i32* %arrayidx, align 4 |
| ; CHECK: %idxprom1 = sext i32 %1 to i64 |
| ; CHECK: %arrayidx2 = getelementptr inbounds float, float* %b, i64 %idxprom1 |
| ; CHECK: %2 = load float, float* %arrayidx2, align 4 |
| ; CHECK: %mul = fmul float %2, %alpha |
| ; CHECK: %arrayidx4 = getelementptr inbounds float, float* %a, i64 %indvar |
| ; CHECK: %3 = load float, float* %arrayidx4, align 4 |
| ; CHECK: %add = fadd float %3, %mul |
| ; CHECK: store float %add, float* %arrayidx4, align 4 |
| ; CHECK: %indvar.next = add i64 %indvar, 1 |
| ; CHECK: %exitcond = icmp eq i32 %0, 3199 |
| ; CHECK: br i1 %exitcond, label %for.end, label %for.body |
| |
| ; CHECK: ret |
| |
| for.end: ; preds = %for.body |
| ret void |
| } |
| |
| ; void multi1(int *x) { |
| ; y = foo(0) |
| ; for (int i = 0; i < 500; ++i) { |
| ; x[3*i] = y; |
| ; x[3*i+1] = y; |
| ; x[3*i+2] = y; |
| ; x[3*i+6] = y; |
| ; x[3*i+7] = y; |
| ; x[3*i+8] = y; |
| ; } |
| ; } |
| |
| ; Function Attrs: nounwind uwtable |
| define void @multi1(i32* nocapture %x) #0 { |
| entry: |
| %call = tail call i32 @foo(i32 0) #1 |
| br label %for.body |
| |
| for.body: ; preds = %for.body, %entry |
| %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] |
| %0 = mul nsw i64 %indvars.iv, 3 |
| %arrayidx = getelementptr inbounds i32, i32* %x, i64 %0 |
| store i32 %call, i32* %arrayidx, align 4 |
| %1 = add nsw i64 %0, 1 |
| %arrayidx4 = getelementptr inbounds i32, i32* %x, i64 %1 |
| store i32 %call, i32* %arrayidx4, align 4 |
| %2 = add nsw i64 %0, 2 |
| %arrayidx9 = getelementptr inbounds i32, i32* %x, i64 %2 |
| store i32 %call, i32* %arrayidx9, align 4 |
| %3 = add nsw i64 %0, 6 |
| %arrayidx6 = getelementptr inbounds i32, i32* %x, i64 %3 |
| store i32 %call, i32* %arrayidx6, align 4 |
| %4 = add nsw i64 %0, 7 |
| %arrayidx7 = getelementptr inbounds i32, i32* %x, i64 %4 |
| store i32 %call, i32* %arrayidx7, align 4 |
| %5 = add nsw i64 %0, 8 |
| %arrayidx8 = getelementptr inbounds i32, i32* %x, i64 %5 |
| store i32 %call, i32* %arrayidx8, 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: @multi1 |
| |
| ; CHECK:for.body: |
| ; CHECK: %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] |
| ; CHECK: %0 = add i64 %indvars.iv, 6 |
| ; CHECK: %arrayidx = getelementptr inbounds i32, i32* %x, i64 %indvars.iv |
| ; CHECK: store i32 %call, i32* %arrayidx, align 4 |
| ; CHECK: %arrayidx6 = getelementptr inbounds i32, i32* %x, i64 %0 |
| ; CHECK: store i32 %call, i32* %arrayidx6, 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 |
| |
| for.end: ; preds = %for.body |
| ret void |
| } |
| |
| ; void multi2(int *x) { |
| ; y = foo(0) |
| ; for (int i = 0; i < 500; ++i) { |
| ; x[3*i] = y; |
| ; x[3*i+1] = y; |
| ; x[3*i+2] = y; |
| ; x[3*(i+1)] = y; |
| ; x[3*(i+1)+1] = y; |
| ; x[3*(i+1)+2] = y; |
| ; } |
| ; } |
| |
| ; Function Attrs: nounwind uwtable |
| define void @multi2(i32* nocapture %x) #0 { |
| entry: |
| %call = tail call i32 @foo(i32 0) #1 |
| br label %for.body |
| |
| for.body: ; preds = %for.body, %entry |
| %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] |
| %0 = mul nsw i64 %indvars.iv, 3 |
| %add = add nsw i64 %indvars.iv, 1 |
| %newmul = mul nsw i64 %add, 3 |
| %arrayidx = getelementptr inbounds i32, i32* %x, i64 %0 |
| store i32 %call, i32* %arrayidx, align 4 |
| %1 = add nsw i64 %0, 1 |
| %arrayidx4 = getelementptr inbounds i32, i32* %x, i64 %1 |
| store i32 %call, i32* %arrayidx4, align 4 |
| %2 = add nsw i64 %0, 2 |
| %arrayidx9 = getelementptr inbounds i32, i32* %x, i64 %2 |
| store i32 %call, i32* %arrayidx9, align 4 |
| %arrayidx6 = getelementptr inbounds i32, i32* %x, i64 %newmul |
| store i32 %call, i32* %arrayidx6, align 4 |
| %3 = add nsw i64 %newmul, 1 |
| %arrayidx7 = getelementptr inbounds i32, i32* %x, i64 %3 |
| store i32 %call, i32* %arrayidx7, align 4 |
| %4 = add nsw i64 %newmul, 2 |
| %arrayidx8 = getelementptr inbounds i32, i32* %x, i64 %4 |
| store i32 %call, i32* %arrayidx8, 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: @multi2 |
| |
| ; CHECK:for.body: |
| ; CHECK: %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] |
| ; CHECK: %0 = add i64 %indvars.iv, 3 |
| ; CHECK: %arrayidx = getelementptr inbounds i32, i32* %x, i64 %indvars.iv |
| ; CHECK: store i32 %call, i32* %arrayidx, align 4 |
| ; CHECK: %arrayidx6 = getelementptr inbounds i32, i32* %x, i64 %0 |
| ; CHECK: store i32 %call, i32* %arrayidx6, 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 |
| |
| for.end: ; preds = %for.body |
| ret void |
| } |
| |
| ; void multi3(int *x) { |
| ; y = foo(0) |
| ; for (int i = 0; i < 500; ++i) { |
| ; // Note: No zero index |
| ; x[3*i+3] = y; |
| ; x[3*i+4] = y; |
| ; x[3*i+5] = y; |
| ; } |
| ; } |
| |
| ; Function Attrs: nounwind uwtable |
| define void @multi3(i32* nocapture %x) #0 { |
| entry: |
| %call = tail call i32 @foo(i32 0) #1 |
| br label %for.body |
| |
| for.body: ; preds = %for.body, %entry |
| %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] |
| %0 = mul nsw i64 %indvars.iv, 3 |
| %x0 = add nsw i64 %0, 3 |
| %add = add nsw i64 %indvars.iv, 1 |
| %arrayidx = getelementptr inbounds i32, i32* %x, i64 %x0 |
| store i32 %call, i32* %arrayidx, align 4 |
| %1 = add nsw i64 %0, 4 |
| %arrayidx4 = getelementptr inbounds i32, i32* %x, i64 %1 |
| store i32 %call, i32* %arrayidx4, align 4 |
| %2 = add nsw i64 %0, 5 |
| %arrayidx9 = getelementptr inbounds i32, i32* %x, i64 %2 |
| store i32 %call, 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: @multi3 |
| ; CHECK: for.body: |
| ; CHECK: %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] |
| ; CHECK: %0 = add i64 %indvars.iv, 3 |
| ; CHECK: %arrayidx = getelementptr inbounds i32, i32* %x, i64 %0 |
| ; 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 |
| |
| for.end: ; preds = %for.body |
| ret void |
| } |
| |
| ; int foo(int a); |
| ; void bar2(int *x, int y, int z) { |
| ; for (int i = 0; i < 500; i += 3) { |
| ; foo(i+y+i*z); // Slightly reordered instruction order |
| ; foo(i+1+y+(i+1)*z); |
| ; foo(i+2+y+(i+2)*z); |
| ; } |
| ; } |
| |
| ; Function Attrs: nounwind uwtable |
| define void @bar2(i32* nocapture readnone %x, i32 %y, i32 %z) #0 { |
| entry: |
| br label %for.body |
| |
| for.body: ; preds = %for.body, %entry |
| %i.08 = phi i32 [ 0, %entry ], [ %add3, %for.body ] |
| |
| %tmp1 = add i32 %i.08, %y |
| %tmp2 = mul i32 %i.08, %z |
| %tmp3 = add i32 %tmp2, %tmp1 |
| %call = tail call i32 @foo(i32 %tmp3) #1 |
| |
| %add = add nsw i32 %i.08, 1 |
| %tmp2a = mul i32 %add, %z |
| %tmp1a = add i32 %add, %y |
| %tmp3a = add i32 %tmp2a, %tmp1a |
| %calla = tail call i32 @foo(i32 %tmp3a) #1 |
| |
| %add2 = add nsw i32 %i.08, 2 |
| %tmp2b = mul i32 %add2, %z |
| %tmp1b = add i32 %add2, %y |
| %tmp3b = add i32 %tmp2b, %tmp1b |
| %callb = tail call i32 @foo(i32 %tmp3b) #1 |
| |
| %add3 = add nsw i32 %i.08, 3 |
| |
| %exitcond = icmp sge i32 %add3, 500 |
| br i1 %exitcond, label %for.end, label %for.body |
| |
| ; CHECK-LABEL: @bar2 |
| |
| ; CHECK: for.body: |
| ; CHECK: %indvar = phi i32 [ %indvar.next, %for.body ], [ 0, %entry ] |
| ; CHECK: %tmp1 = add i32 %indvar, %y |
| ; CHECK: %tmp2 = mul i32 %indvar, %z |
| ; CHECK: %tmp3 = add i32 %tmp2, %tmp1 |
| ; CHECK: %call = tail call i32 @foo(i32 %tmp3) #1 |
| ; CHECK: %indvar.next = add i32 %indvar, 1 |
| ; CHECK: %exitcond1 = icmp eq i32 %indvar, 500 |
| ; CHECK: br i1 %exitcond1, label %for.end, label %for.body |
| |
| ; CHECK: ret |
| |
| for.end: ; preds = %for.body |
| ret void |
| } |
| |
| %struct.s = type { i32, i32 } |
| |
| ; Function Attrs: nounwind uwtable |
| define void @gep1(%struct.s* nocapture %x) #0 { |
| entry: |
| %call = tail call i32 @foo(i32 0) #1 |
| br label %for.body |
| |
| for.body: ; preds = %for.body, %entry |
| %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] |
| %0 = mul nsw i64 %indvars.iv, 3 |
| %arrayidx = getelementptr inbounds %struct.s, %struct.s* %x, i64 %0, i32 0 |
| store i32 %call, i32* %arrayidx, align 4 |
| %1 = add nsw i64 %0, 1 |
| %arrayidx4 = getelementptr inbounds %struct.s, %struct.s* %x, i64 %1, i32 0 |
| store i32 %call, i32* %arrayidx4, align 4 |
| %2 = add nsw i64 %0, 2 |
| %arrayidx9 = getelementptr inbounds %struct.s, %struct.s* %x, i64 %2, i32 0 |
| store i32 %call, 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: @gep1 |
| ; This test is a crash test only. |
| ; CHECK: ret |
| for.end: ; preds = %for.body |
| ret void |
| } |
| |
| define void @gep-indexing(i32* nocapture %x) { |
| entry: |
| %call = tail call i32 @foo(i32 0) #1 |
| br label %for.body |
| |
| for.body: ; preds = %for.body, %entry |
| %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] |
| %0 = mul nsw i64 %indvars.iv, 3 |
| %arrayidx = getelementptr inbounds i32, i32* %x, i64 %0 |
| store i32 %call, i32* %arrayidx, align 4 |
| %arrayidx4 = getelementptr inbounds i32, i32* %arrayidx, i64 1 |
| store i32 %call, i32* %arrayidx4, align 4 |
| %arrayidx9 = getelementptr inbounds i32, i32* %arrayidx, i64 2 |
| store i32 %call, 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: @gep-indexing |
| ; CHECK: for.body: |
| ; CHECK-NEXT: %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] |
| ; CHECK-NEXT: %scevgep = getelementptr i32, i32* %x, i64 %indvars.iv |
| ; CHECK-NEXT: store i32 %call, i32* %scevgep, align 4 |
| ; CHECK-NEXT: %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 |
| ; CHECK-NEXT: %exitcond1 = icmp eq i64 %indvars.iv, 1499 |
| ; CHECK-NEXT: br i1 %exitcond1, label %for.end, label %for.body |
| |
| for.end: ; preds = %for.body |
| ret void |
| } |
| |
| |
| define void @unordered_atomic_ops(i32* noalias %buf_0, i32* noalias %buf_1) { |
| ; CHECK-LABEL: @unordered_atomic_ops( |
| |
| ; CHECK: for.body: |
| ; CHECK-NEXT: %indvar = phi i32 [ %indvar.next, %for.body ], [ 0, %entry ] |
| ; CHECK-NEXT: %buf0_a = getelementptr i32, i32* %buf_0, i32 %indvar |
| ; CHECK-NEXT: %buf1_a = getelementptr i32, i32* %buf_1, i32 %indvar |
| ; CHECK-NEXT: %va = load atomic i32, i32* %buf0_a unordered, align 4 |
| ; CHECK-NEXT: store atomic i32 %va, i32* %buf1_a unordered, align 4 |
| ; CHECK-NEXT: %indvar.next = add i32 %indvar, 1 |
| ; CHECK-NEXT: %exitcond = icmp eq i32 %indvar, 3199 |
| ; CHECK-NEXT: br i1 %exitcond, label %for.end, label %for.body |
| |
| entry: |
| br label %for.body |
| |
| for.body: |
| %indvars.iv = phi i32 [ 0, %entry ], [ %indvars.iv.next, %for.body ] |
| %indvars.iv.next = add i32 %indvars.iv, 2 |
| %indvars.mid = add i32 %indvars.iv, 1 |
| %buf0_a = getelementptr i32, i32* %buf_0, i32 %indvars.iv |
| %buf0_b = getelementptr i32, i32* %buf_0, i32 %indvars.mid |
| %buf1_a = getelementptr i32, i32* %buf_1, i32 %indvars.iv |
| %buf1_b = getelementptr i32, i32* %buf_1, i32 %indvars.mid |
| %va = load atomic i32, i32* %buf0_a unordered, align 4 |
| %vb = load atomic i32, i32* %buf0_b unordered, align 4 |
| store atomic i32 %va, i32* %buf1_a unordered, align 4 |
| store atomic i32 %vb, i32* %buf1_b unordered, align 4 |
| %cmp = icmp slt i32 %indvars.iv.next, 3200 |
| br i1 %cmp, label %for.body, label %for.end |
| |
| for.end: |
| ret void |
| } |
| |
| define void @unordered_atomic_ops_nomatch(i32* noalias %buf_0, i32* noalias %buf_1) { |
| ; Negative test |
| |
| ; CHECK-LABEL: @unordered_atomic_ops_nomatch( |
| entry: |
| br label %for.body |
| |
| for.body: |
| ; CHECK: for.body: |
| ; CHECK: %indvars.iv.next = add i32 %indvars.iv, 2 |
| ; CHECK: %indvars.mid = add i32 %indvars.iv, 1 |
| ; CHECK: %cmp = icmp slt i32 %indvars.iv.next, 3200 |
| ; CHECK: br i1 %cmp, label %for.body, label %for.end |
| |
| %indvars.iv = phi i32 [ 0, %entry ], [ %indvars.iv.next, %for.body ] |
| %indvars.iv.next = add i32 %indvars.iv, 2 |
| %indvars.mid = add i32 %indvars.iv, 1 |
| %buf0_a = getelementptr i32, i32* %buf_0, i32 %indvars.iv |
| %buf0_b = getelementptr i32, i32* %buf_0, i32 %indvars.mid |
| %buf1_a = getelementptr i32, i32* %buf_1, i32 %indvars.iv |
| %buf1_b = getelementptr i32, i32* %buf_1, i32 %indvars.mid |
| %va = load atomic i32, i32* %buf0_a unordered, align 4 |
| %vb = load atomic i32, i32* %buf0_b unordered, align 4 |
| store i32 %va, i32* %buf1_a, align 4 ;; Not atomic |
| store atomic i32 %vb, i32* %buf1_b unordered, align 4 |
| %cmp = icmp slt i32 %indvars.iv.next, 3200 |
| br i1 %cmp, label %for.body, label %for.end |
| |
| for.end: |
| ret void |
| } |
| |
| define void @ordered_atomic_ops(i32* noalias %buf_0, i32* noalias %buf_1) { |
| ; Negative test |
| |
| ; CHECK-LABEL: @ordered_atomic_ops( |
| entry: |
| br label %for.body |
| |
| for.body: |
| ; CHECK: for.body: |
| ; CHECK: %indvars.iv.next = add i32 %indvars.iv, 2 |
| ; CHECK: %indvars.mid = add i32 %indvars.iv, 1 |
| ; CHECK: %cmp = icmp slt i32 %indvars.iv.next, 3200 |
| ; CHECK: br i1 %cmp, label %for.body, label %for.end |
| |
| %indvars.iv = phi i32 [ 0, %entry ], [ %indvars.iv.next, %for.body ] |
| %indvars.iv.next = add i32 %indvars.iv, 2 |
| %indvars.mid = add i32 %indvars.iv, 1 |
| %buf0_a = getelementptr i32, i32* %buf_0, i32 %indvars.iv |
| %buf0_b = getelementptr i32, i32* %buf_0, i32 %indvars.mid |
| %buf1_a = getelementptr i32, i32* %buf_1, i32 %indvars.iv |
| %buf1_b = getelementptr i32, i32* %buf_1, i32 %indvars.mid |
| %va = load atomic i32, i32* %buf0_a acquire, align 4 |
| %vb = load atomic i32, i32* %buf0_b acquire, align 4 |
| store atomic i32 %va, i32* %buf1_a release, align 4 |
| store atomic i32 %vb, i32* %buf1_b release, align 4 |
| %cmp = icmp slt i32 %indvars.iv.next, 3200 |
| br i1 %cmp, label %for.body, label %for.end |
| |
| for.end: |
| ret void |
| } |
| |
| define void @unordered_atomic_ops_with_fence(i32* noalias %buf_0, i32* noalias %buf_1) { |
| ; CHECK-LABEL: @unordered_atomic_ops_with_fence( |
| entry: |
| br label %for.body |
| |
| for.body: |
| ; CHECK: for.body: |
| ; CHECK: %va = load atomic i32, i32* %buf0_a unordered, align 4 |
| ; CHECK-NEXT: %vb = load atomic i32, i32* %buf0_b unordered, align 4 |
| ; CHECK-NEXT: fence seq_cst |
| ; CHECK-NEXT: store atomic i32 %va, i32* %buf1_a unordered, align 4 |
| ; CHECK-NEXT: store atomic i32 %vb, i32* %buf1_b unordered, align 4 |
| |
| %indvars.iv = phi i32 [ 0, %entry ], [ %indvars.iv.next, %for.body ] |
| %indvars.iv.next = add i32 %indvars.iv, 2 |
| %indvars.mid = add i32 %indvars.iv, 1 |
| %buf0_a = getelementptr i32, i32* %buf_0, i32 %indvars.iv |
| %buf0_b = getelementptr i32, i32* %buf_0, i32 %indvars.mid |
| %buf1_a = getelementptr i32, i32* %buf_1, i32 %indvars.iv |
| %buf1_b = getelementptr i32, i32* %buf_1, i32 %indvars.mid |
| %va = load atomic i32, i32* %buf0_a unordered, align 4 |
| %vb = load atomic i32, i32* %buf0_b unordered, align 4 |
| fence seq_cst |
| store atomic i32 %va, i32* %buf1_a unordered, align 4 |
| store atomic i32 %vb, i32* %buf1_b unordered, align 4 |
| %cmp = icmp slt i32 %indvars.iv.next, 3200 |
| br i1 %cmp, label %for.body, label %for.end |
| |
| for.end: |
| ret void |
| } |
| |
| define void @pointer_bitcast_baseinst(i16* %arg, i8* %arg1, i64 %arg2) { |
| ; CHECK-LABEL: @pointer_bitcast_baseinst( |
| ; CHECK: bb3: |
| ; CHECK-NEXT: %indvar = phi i64 [ %indvar.next, %bb3 ], [ 0, %bb ] |
| ; CHECK-NEXT: %4 = shl i64 %indvar, 3 |
| ; CHECK-NEXT: %5 = add i64 %4, 1 |
| ; CHECK-NEXT: %tmp5 = shl nuw i64 %5, 1 |
| ; CHECK-NEXT: %tmp6 = getelementptr i8, i8* %arg1, i64 %tmp5 |
| ; CHECK-NEXT: %tmp7 = bitcast i8* %tmp6 to <8 x i16>* |
| ; CHECK-NEXT: %tmp8 = load <8 x i16>, <8 x i16>* %tmp7, align 2 |
| ; CHECK-NEXT: %tmp13 = getelementptr i16, i16* %arg, i64 %5 |
| ; CHECK-NEXT: %tmp14 = bitcast i16* %tmp13 to <8 x i16>* |
| ; CHECK-NEXT: store <8 x i16> %tmp8, <8 x i16>* %tmp14, align 2 |
| ; CHECK-NEXT: %indvar.next = add i64 %indvar, 1 |
| ; CHECK-NEXT: %exitcond = icmp eq i64 %indvar, %3 |
| ; CHECK-NEXT: br i1 %exitcond, label %bb19, label %bb3 |
| bb: |
| br label %bb3 |
| |
| bb3: ; preds = %bb3, %bb |
| %tmp = phi i64 [ 1, %bb ], [ %tmp17, %bb3 ] |
| %tmp4 = add nuw i64 %tmp, 8 |
| %tmp5 = shl nuw i64 %tmp, 1 |
| %tmp6 = getelementptr i8, i8* %arg1, i64 %tmp5 |
| %tmp7 = bitcast i8* %tmp6 to <8 x i16>* |
| %tmp8 = load <8 x i16>, <8 x i16>* %tmp7, align 2 |
| %tmp9 = shl i64 %tmp4, 1 |
| %tmp10 = getelementptr i8, i8* %arg1, i64 %tmp9 |
| %tmp11 = bitcast i8* %tmp10 to <8 x i16>* |
| %tmp12 = load <8 x i16>, <8 x i16>* %tmp11, align 2 |
| %tmp13 = getelementptr i16, i16* %arg, i64 %tmp |
| %tmp14 = bitcast i16* %tmp13 to <8 x i16>* |
| store <8 x i16> %tmp8, <8 x i16>* %tmp14, align 2 |
| %tmp15 = getelementptr i16, i16* %arg, i64 %tmp4 |
| %tmp16 = bitcast i16* %tmp15 to <8 x i16>* |
| store <8 x i16> %tmp12, <8 x i16>* %tmp16, align 2 |
| %tmp17 = add nuw nsw i64 %tmp, 16 |
| %tmp18 = icmp eq i64 %tmp17, %arg2 |
| br i1 %tmp18, label %bb19, label %bb3 |
| |
| bb19: ; preds = %bb3 |
| ret void |
| } |
| |
| define void @bad_step(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, 2 |
| %call1 = tail call i32 @foo(i32 %add) #1 |
| %add2 = add nsw i32 %i.08, 3 |
| %call3 = tail call i32 @foo(i32 %add2) #1 |
| %add3 = add nsw i32 %i.08, 6 |
| %exitcond = icmp sge i32 %add3, 500 |
| br i1 %exitcond, label %for.end, label %for.body |
| |
| ; CHECK-LABEL: @bad_step |
| ; CHECK: %add = add nsw i32 %i.08, 2 |
| ; CHECK: %add2 = add nsw i32 %i.08, 3 |
| ; CHECK: %add3 = add nsw i32 %i.08, 6 |
| |
| for.end: ; preds = %for.body |
| ret void |
| } |
| |
| attributes #0 = { nounwind uwtable } |
| attributes #1 = { nounwind } |
| |