a99dd8344e
Many tests were running extra passes after loop-vectorize, but they made no difference to the outcome. If tests don't require these extra passes, then we shouldn't run them because it increases the testing time.
58 lines
2.0 KiB
LLVM
58 lines
2.0 KiB
LLVM
; RUN: opt < %s -passes=loop-vectorize -force-vector-interleave=1 -force-vector-width=4 -S | FileCheck %s
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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"
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@a = common global [2048 x i32] zeroinitializer, align 16
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@b = common global [2048 x i32] zeroinitializer, align 16
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@c = common global [2048 x i32] zeroinitializer, align 16
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;CHECK-LABEL: @example1(
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;CHECK: load <4 x i32>
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;CHECK: ret void
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define void @example1() {
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br label %1
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; <label>:
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%indvars.iv = phi i64 [ 0, %0 ], [ %indvars.iv.next, %1 ]
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%2 = getelementptr inbounds [2048 x i32], ptr @b, i64 0, i64 %indvars.iv
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%3 = load i32, ptr %2, align 4
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%4 = getelementptr inbounds [2048 x i32], ptr @c, i64 0, i64 %indvars.iv
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%5 = load i32, ptr %4, align 4
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%6 = add nsw i32 %5, %3
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%7 = getelementptr inbounds [2048 x i32], ptr @a, i64 0, i64 %indvars.iv
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store i32 %6, ptr %7, align 4
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%indvars.iv.next = add i64 %indvars.iv, 1
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%lftr.wideiv = trunc i64 %indvars.iv.next to i32
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%exitcond = icmp eq i32 %lftr.wideiv, 8 ; <----- A really small trip count
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br i1 %exitcond, label %8, label %1 ; w/o scalar iteration overhead.
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; <label>:
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ret void
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}
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;CHECK-LABEL: @bound1(
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;CHECK-NOT: load <4 x i32>
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;CHECK: ret void
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define void @bound1(i32 %k) {
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br label %1
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; <label>:
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%indvars.iv = phi i64 [ 0, %0 ], [ %indvars.iv.next, %1 ]
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%2 = getelementptr inbounds [2048 x i32], ptr @b, i64 0, i64 %indvars.iv
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%3 = load i32, ptr %2, align 4
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%4 = getelementptr inbounds [2048 x i32], ptr @c, i64 0, i64 %indvars.iv
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%5 = load i32, ptr %4, align 4
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%6 = add nsw i32 %5, %3
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%7 = getelementptr inbounds [2048 x i32], ptr @a, i64 0, i64 %indvars.iv
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store i32 %6, ptr %7, align 4
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%indvars.iv.next = add i64 %indvars.iv, 1
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%lftr.wideiv = trunc i64 %indvars.iv.next to i32
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%large = icmp sge i32 %lftr.wideiv, 8
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%exitcond = icmp eq i32 %lftr.wideiv, %k
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%realexit = or i1 %large, %exitcond
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br i1 %realexit, label %8, label %1
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; <label>:
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ret void
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}
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