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TheRock/compiler/amd-llvm/polly/test/ScopInfo/BoundChecks/single-loop.ll
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

87 lines
2.4 KiB
LLVM

; RUN: opt %loadNPMPolly '-passes=polly-custom<scops>' -polly-print-scops -disable-output < %s 2>&1 | FileCheck %s
; RUN: opt %loadNPMPolly '-passes=polly-custom<ast>' -polly-print-ast -disable-output < %s 2>&1 | FileCheck %s --check-prefix=AST
;
; This only works after the post-dominator tree has been fixed.
;
; XFAIL: *
;
; void exception() __attribute__((noreturn));
;
; void foo(long n, float A[100]) {
; for (long i = 0; i < n; i++) {
; if (i < 0)
; exception();
;
; if (i >= 100)
; exception();
;
; A[i] += i;
; }
; }
; We should detect this kernel as a SCoP and derive run-time conditions such
; that the bound-checked blocks are not part of the optimized SCoP.
; CHECK: Invalid Context:
; CHECK: [n] -> { : n >= 101 }
; AST: if (1 && 0 == n >= 101)
; AST: for (int c0 = 0; c0 < n; c0 += 1)
; AST: Stmt_if_end_4(c0);
;
; AST-NOT: for
; AST-NOT: Stmt
;
; AST: else
; AST: { /* original code */ }
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
; Function Attrs: nounwind uwtable
define void @foo(i64 %n, ptr %A) {
entry:
br label %for.cond
for.cond: ; preds = %for.inc, %entry
%i.0 = phi i64 [ 0, %entry ], [ %inc, %for.inc ]
%cmp = icmp slt i64 %i.0, %n
br i1 %cmp, label %for.body, label %for.end
for.body: ; preds = %for.cond
br i1 false, label %if.then, label %if.end
if.then: ; preds = %for.body
call void (...) @exception()
unreachable
if.end: ; preds = %for.body
%cmp2 = icmp sgt i64 %i.0, 99
br i1 %cmp2, label %if.then.3, label %if.end.4
if.then.3: ; preds = %if.end
call void (...) @exception()
unreachable
if.end.4: ; preds = %if.end
%conv = sitofp i64 %i.0 to float
%arrayidx = getelementptr inbounds float, ptr %A, i64 %i.0
%tmp = load float, ptr %arrayidx, align 4
%add = fadd float %tmp, %conv
store float %add, ptr %arrayidx, align 4
br label %for.inc
for.inc: ; preds = %if.end.4
%inc = add nuw nsw i64 %i.0, 1
br label %for.cond
for.end: ; preds = %for.cond
ret void
}
; Function Attrs: noreturn
declare void @exception(...)
!llvm.ident = !{!0}
!0 = !{!"clang version 3.8.0 (trunk 246853)"}