9cfb0ac223
The goal is to have -polly-stmt-granularity=bb and -polly-stmt-granularity=scalar-indep to have the same names if there is just one statement per basic block. This fixes a fluke when Polybench's jacobi-2d is optimized differently depending on the -polly-stmt-granularity option, although both options create the same SCoP, just with different statement names. The new naming scheme is: With -polly-use-llvm-names=0: Stmt<BBIdx as decimal><Idx within BB as letter> With -polly-use-llvm-names=1: Stmt_BBName_<Idx within BB as letter> The <Idx within BB> suffix is omitted for the main statement of a BB. The main statement is either the one containing the first store or call (those cannot be removed by the simplifyer), or if there is no such instruction, the first. If after simplification there is just a single statement left, it should be the main statement and have the same names as with -polly-stmt-granularity=bb. Differential Revision: https://reviews.llvm.org/D42136 llvm-svn: 322852
50 lines
1.6 KiB
LLVM
50 lines
1.6 KiB
LLVM
; RUN: opt %loadPolly -polly-stmt-granularity=bb -polly-use-llvm-names=0 -polly-scops -analyze < %s | FileCheck %s -match-full-lines -check-prefix=IDX
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; RUN: opt %loadPolly -polly-stmt-granularity=bb -polly-use-llvm-names=1 -polly-scops -analyze < %s | FileCheck %s -match-full-lines -check-prefix=BB
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; RUN: opt %loadPolly -polly-stmt-granularity=scalar-indep -polly-use-llvm-names=0 -polly-scops -analyze < %s | FileCheck %s -match-full-lines -check-prefix=IDX
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; RUN: opt %loadPolly -polly-stmt-granularity=scalar-indep -polly-use-llvm-names=1 -polly-scops -analyze < %s | FileCheck %s -match-full-lines -check-prefix=BB
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;
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; Check that the statement has the same name, regardless of how the
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; basic block is split into multiple statements.
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; Note that %unrelatedA and %unrelatedB can be put into separate
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; statements, but are removed because those have no side-effects.
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;
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; for (int j = 0; j < n; j += 1) {
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; body:
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; double unrelatedA = 21.0 + 21.0;
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; A[0] = 0.0;
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; double unrelatedB = 21.0 + 21.0;
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; }
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;
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define void @func(i32 %n, double* noalias nonnull %A) {
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entry:
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br label %for
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for:
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%j = phi i32 [0, %entry], [%j.inc, %inc]
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%j.cmp = icmp slt i32 %j, %n
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br i1 %j.cmp, label %body, label %exit
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body:
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%unrelatedA = fadd double 21.0, 21.0
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store double 0.0, double* %A
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%unrelatedB = fadd double 21.0, 21.0
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br label %inc
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inc:
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%j.inc = add nuw nsw i32 %j, 1
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br label %for
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exit:
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br label %return
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return:
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ret void
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}
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; IDX: Statements {
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; IDX-NEXT: Stmt1
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; BB: Statements {
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; BB-NEXT: Stmt_body
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