| ; RUN: opt -S -loop-vectorize -force-vector-width=2 -force-vector-unroll=1 < %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" |
| |
| ; Make sure we can vectorize loops with functions to math library functions. |
| ; They might read the rounding mode but we are only vectorizing loops that |
| ; contain a limited set of function calls and none of them sets the rounding |
| ; mode, so vectorizing them is safe. |
| |
| ; CHECK-LABEL: @test( |
| ; CHECK: <2 x double> |
| |
| define void @test(double* %d, double %t) { |
| entry: |
| br label %for.body |
| |
| for.body: |
| %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] |
| %arrayidx = getelementptr inbounds double* %d, i64 %indvars.iv |
| %0 = load double* %arrayidx, align 8 |
| %1 = tail call double @llvm.pow.f64(double %0, double %t) |
| store double %1, double* %arrayidx, align 8 |
| %indvars.iv.next = add i64 %indvars.iv, 1 |
| %lftr.wideiv = trunc i64 %indvars.iv.next to i32 |
| %exitcond = icmp ne i32 %lftr.wideiv, 128 |
| br i1 %exitcond, label %for.body, label %for.end |
| |
| for.end: |
| ret void |
| } |
| |
| declare double @llvm.pow.f64(double, double) |
