| ; RUN: opt < %s -loop-vectorize -mattr=+sse4.2 -debug-only=loop-vectorize 2>&1 -S | FileCheck %s |
| ; REQUIRES: asserts |
| ; Make sure we use the right select kind when querying select costs. |
| |
| 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-apple-macosx10.8.0" |
| |
| @a = common global [2048 x i32] zeroinitializer, align 16 |
| @b = common global [2048 x i32] zeroinitializer, align 16 |
| @c = common global [2048 x i32] zeroinitializer, align 16 |
| |
| ; CHECK: Checking a loop in "scalarselect" |
| define void @scalarselect(i1 %cond) { |
| br label %1 |
| |
| ; <label>:1 |
| %indvars.iv = phi i64 [ 0, %0 ], [ %indvars.iv.next, %1 ] |
| %2 = getelementptr inbounds [2048 x i32], [2048 x i32]* @b, i64 0, i64 %indvars.iv |
| %3 = load i32, i32* %2, align 4 |
| %4 = getelementptr inbounds [2048 x i32], [2048 x i32]* @c, i64 0, i64 %indvars.iv |
| %5 = load i32, i32* %4, align 4 |
| %6 = add nsw i32 %5, %3 |
| %7 = getelementptr inbounds [2048 x i32], [2048 x i32]* @a, i64 0, i64 %indvars.iv |
| |
| ; A scalar select has a cost of 1 on core2 |
| ; CHECK: cost of 1 for VF 2 {{.*}} select i1 %cond, i32 %6, i32 0 |
| |
| %sel = select i1 %cond, i32 %6, i32 zeroinitializer |
| store i32 %sel, i32* %7, align 4 |
| %indvars.iv.next = add i64 %indvars.iv, 1 |
| %lftr.wideiv = trunc i64 %indvars.iv.next to i32 |
| %exitcond = icmp eq i32 %lftr.wideiv, 256 |
| br i1 %exitcond, label %8, label %1 |
| |
| ; <label>:8 |
| ret void |
| } |
| |
| ; CHECK: Checking a loop in "vectorselect" |
| define void @vectorselect(i1 %cond) { |
| br label %1 |
| |
| ; <label>:1 |
| %indvars.iv = phi i64 [ 0, %0 ], [ %indvars.iv.next, %1 ] |
| %2 = getelementptr inbounds [2048 x i32], [2048 x i32]* @b, i64 0, i64 %indvars.iv |
| %3 = load i32, i32* %2, align 4 |
| %4 = getelementptr inbounds [2048 x i32], [2048 x i32]* @c, i64 0, i64 %indvars.iv |
| %5 = load i32, i32* %4, align 4 |
| %6 = add nsw i32 %5, %3 |
| %7 = getelementptr inbounds [2048 x i32], [2048 x i32]* @a, i64 0, i64 %indvars.iv |
| %8 = icmp ult i64 %indvars.iv, 8 |
| |
| ; A vector select has a cost of 1 on core2 |
| ; CHECK: cost of 1 for VF 2 {{.*}} select i1 %8, i32 %6, i32 0 |
| |
| %sel = select i1 %8, i32 %6, i32 zeroinitializer |
| store i32 %sel, i32* %7, align 4 |
| %indvars.iv.next = add i64 %indvars.iv, 1 |
| %lftr.wideiv = trunc i64 %indvars.iv.next to i32 |
| %exitcond = icmp eq i32 %lftr.wideiv, 256 |
| br i1 %exitcond, label %9, label %1 |
| |
| ; <label>:9 |
| ret void |
| } |
| |