forked from OSchip/llvm-project
56 lines
2.1 KiB
LLVM
56 lines
2.1 KiB
LLVM
; RUN: opt %loadPolly -S -polly-codegen-ppcg \
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; RUN: -polly-ignore-parameter-bounds \
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; RUN: -polly-invariant-load-hoisting < %s| FileCheck %s -check-prefix=HOST-IR
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;
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; REQUIRES: pollyacc
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; When we have `-polly-ignore-parameter-bounds`, `Scop::Context` does not contain
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; all the parameters present in the program.
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;
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; The construction of the `isl_multi_pw_aff` requires all the indivisual `pw_aff`
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; to have the same parameter dimensions. To achieve this, we used to realign
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; every `pw_aff` with `Scop::Context`. However, in conjunction with
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; `-polly-ignore-parameter-bounds`, this is now incorrect, since `Scop::Context`
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; does not contain all parameters.
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;
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; We check that Polly does the right thing in this case and sets up the parameter
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; dimensions correctly.
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; Check that kernel launch is generated in host IR.
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; the declare would not be generated unless a call to a kernel exists.
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; HOST-IR: declare void @polly_launchKernel(i8*, i32, i32, i32, i32, i32, i8*)
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; ModuleID = 'test/GPGPU/bounds-construction-with-ignore-param-bounds.ll'
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; C pseudocode
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; ------------
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; void f(int *arr, long niters, long stride) {
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; for(int i = 0; i < niters; i++) {
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; arr[i * stride] = 1;
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; }
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; }
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target datalayout = "e-p:64:64:64-S128-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f16:16:16-f32:32:32-f64:64:64-f128:128:128-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
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target triple = "x86_64-unknown-linux-gnu"
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; Function Attrs: nounwind uwtable
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define void @f(i32 *%arr, i64 %niters, i64 %stride) unnamed_addr #1 {
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entry:
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br label %loop
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loop: ; preds = %loop, %entry
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%indvar = phi i64 [ 0, %entry ], [ %indvar.next, %loop ]
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%idx = mul nuw nsw i64 %indvar, %stride
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%slot = getelementptr i32, i32* %arr, i64 %idx
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store i32 1, i32* %slot, align 4
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%indvar.next = add nuw nsw i64 %indvar, 1
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%check = icmp sgt i64 %indvar.next, %niters
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br i1 %check, label %exit, label %loop
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exit: ; preds = %loop
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ret void
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}
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attributes #0 = { nounwind }
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attributes #1 = { nounwind uwtable }
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