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TheRock/compiler/amd-llvm/polly/test/CodeGen/multiple-codegens.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

63 lines
1.9 KiB
LLVM

; RUN: opt %loadNPMPolly '-passes=polly<no-default-opts;opt-isl>,polly<no-default-opts>' -S < %s | FileCheck %s
; RUN: opt %loadNPMPolly '-passes=function(polly<no-default-opts;opt-isl>),function(polly<no-default-opts>)' -S < %s | FileCheck %s
;
; llvm.org/PR34441
; Properly handle multiple -polly-scops/-polly-codegen in the same
; RegionPassManager. -polly-codegen must not reuse the -polly-ast analysis the
; was created for the first -polly-scops pass.
; The current solution is that only the first -polly-codegen is allowed to
; generate code, the second detects it is reusing an IslAst that belongs to a
; different ScopInfo.
;
; int a, b, c;
;
; int main () {
; while (a++)
; while (b) {
; c = 0;
; break;
; }
; return 0;
; }
;
target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128"
@a = common global i32 0, align 4
@b = common global i32 0, align 4
@c = common global i32 0, align 4
; Function Attrs: nounwind uwtable
define i32 @main() {
entry:
%retval = alloca i32, align 4
store i32 0, ptr %retval, align 4
%.pre = load i32, ptr @a, align 4
br label %while.cond
while.cond: ; preds = %while.end, %entry
%0 = phi i32 [ %inc, %while.end ], [ %.pre, %entry ]
%inc = add nsw i32 %0, 1
store i32 %inc, ptr @a, align 4
%tobool = icmp ne i32 %0, 0
br i1 %tobool, label %while.body, label %while.end4
while.body: ; preds = %while.cond
%1 = load i32, ptr @b, align 4
%tobool2 = icmp ne i32 %1, 0
br i1 %tobool2, label %while.body3, label %while.end
while.body3: ; preds = %while.body
store i32 0, ptr @c, align 4
br label %while.end
while.end: ; preds = %while.body3, %while.body
br label %while.cond
while.end4: ; preds = %while.cond
ret i32 0
}
; CHECK: polly.start:
; CHECK-NOT: polly.start: