| ; REQUIRES: asserts |
| ; RUN: llc < %s -mtriple=i386-apple-darwin -mattr=+sse2 -stats 2>&1 | FileCheck %s |
| ; Now this test spills one register. But a reload in the loop is cheaper than |
| ; the divsd so it's a win. |
| |
| define fastcc void @fourn(double* %data, i32 %isign) nounwind { |
| ; CHECK: fourn |
| entry: |
| br label %bb |
| |
| bb: ; preds = %bb, %entry |
| %indvar93 = phi i32 [ 0, %entry ], [ %idim.030, %bb ] ; <i32> [#uses=2] |
| %idim.030 = add i32 %indvar93, 1 ; <i32> [#uses=1] |
| %0 = add i32 %indvar93, 2 ; <i32> [#uses=1] |
| %1 = icmp sgt i32 %0, 2 ; <i1> [#uses=1] |
| br i1 %1, label %bb30.loopexit, label %bb |
| |
| ; CHECK: %bb30.loopexit |
| ; CHECK: divsd %xmm0 |
| ; CHECK: movsd %xmm0, 16(%esp) |
| ; CHECK: %bb3 |
| bb3: ; preds = %bb30.loopexit, %bb25, %bb3 |
| %2 = load i32* null, align 4 ; <i32> [#uses=1] |
| %3 = mul i32 %2, 0 ; <i32> [#uses=1] |
| %4 = icmp slt i32 0, %3 ; <i1> [#uses=1] |
| br i1 %4, label %bb18, label %bb3 |
| |
| bb18: ; preds = %bb3 |
| %5 = fdiv double %11, 0.000000e+00 ; <double> [#uses=1] |
| %6 = tail call double @sin(double %5) nounwind readonly ; <double> [#uses=1] |
| br label %bb24.preheader |
| |
| bb22.preheader: ; preds = %bb24.preheader, %bb22.preheader |
| br label %bb22.preheader |
| |
| bb25: ; preds = %bb24.preheader |
| %7 = fmul double 0.000000e+00, %6 ; <double> [#uses=0] |
| %8 = add i32 %i3.122100, 0 ; <i32> [#uses=1] |
| %9 = icmp sgt i32 %8, 0 ; <i1> [#uses=1] |
| br i1 %9, label %bb3, label %bb24.preheader |
| |
| bb24.preheader: ; preds = %bb25, %bb18 |
| %i3.122100 = or i32 0, 1 ; <i32> [#uses=2] |
| %10 = icmp slt i32 0, %i3.122100 ; <i1> [#uses=1] |
| br i1 %10, label %bb25, label %bb22.preheader |
| |
| bb30.loopexit: ; preds = %bb |
| %11 = fmul double 0.000000e+00, 0x401921FB54442D1C ; <double> [#uses=1] |
| br label %bb3 |
| } |
| |
| declare double @sin(double) nounwind readonly |
