forked from OSchip/llvm-project
61 lines
1.9 KiB
LLVM
61 lines
1.9 KiB
LLVM
; RUN: opt %loadPolly -basicaa -polly-codegen -polly-vectorizer=polly -S \
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; RUN: -polly-invariant-load-hoisting=true < %s | FileCheck %s
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;#define N 1024
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;float A[N];
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;float B[N];
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;
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;void simple_vec_const(void) {
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; int i;
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;
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; for (i = 0; i < 4; i++)
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; B[i] = A[0];
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;}
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;int main()
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;{
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; simple_vec_const();
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; return A[42];
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;}
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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"
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@A = common global [1024 x float] zeroinitializer, align 16
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@B = common global [1024 x float] zeroinitializer, align 16
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define void @simple_vec_const() nounwind {
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; <label>:0
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br label %1
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; <label>:1 ; preds = %4, %0
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%indvar = phi i64 [ %indvar.next, %4 ], [ 0, %0 ]
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%scevgep = getelementptr [1024 x float], [1024 x float]* @B, i64 0, i64 %indvar
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%exitcond = icmp ne i64 %indvar, 4
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br i1 %exitcond, label %2, label %5
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; <label>:2 ; preds = %1
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%3 = load float, float* getelementptr inbounds ([1024 x float], [1024 x float]* @A, i64 0, i64 0), align 16
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store float %3, float* %scevgep, align 4
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br label %4
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; <label>:4 ; preds = %2
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%indvar.next = add i64 %indvar, 1
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br label %1
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; <label>:5 ; preds = %1
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ret void
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}
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define i32 @main() nounwind {
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call void @simple_vec_const()
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%1 = load float, float* getelementptr inbounds ([1024 x float], [1024 x float]* @A, i64 0, i64 42), align 8
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%2 = fptosi float %1 to i32
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ret i32 %2
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}
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; CHECK: %.load = load float, float* getelementptr inbounds ([1024 x float], [1024 x float]* @A, i32 0, i32 0)
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; CHECK: polly.stmt.: ; preds = %polly.start
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; CHECK: %_p.splatinsert = insertelement <4 x float> undef, float %.load, i32 0
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; CHECK: %_p.splat = shufflevector <4 x float> %_p.splatinsert, <4 x float> undef, <4 x i32> zeroinitializer
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