llvm-project/polly/test/CodeGen/loop_with_condition_ineq.ll

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; ModuleID = 'loop_with_condition_ineq.s'
; RUN: opt %loadPolly %defaultOpts -polly-cloog -analyze %s | FileCheck %s
; RUN: opt %loadPolly %defaultOpts -polly-codegen %s | lli
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"
target triple = "x86_64-pc-linux-gnu"
@A = common global [1024 x i32] zeroinitializer, align 16 ; <[1024 x i32]*> [#uses=4]
@B = common global [1024 x i32] zeroinitializer, align 16 ; <[1024 x i32]*> [#uses=4]
define void @loop_with_condition_ineq() nounwind {
; <label>:0
fence seq_cst
br label %1
; <label>:1 ; preds = %7, %0
%indvar = phi i64 [ %indvar.next, %7 ], [ 0, %0 ] ; <i64> [#uses=5]
%scevgep = getelementptr [1024 x i32]* @A, i64 0, i64 %indvar ; <i32*> [#uses=2]
%scevgep1 = getelementptr [1024 x i32]* @B, i64 0, i64 %indvar ; <i32*> [#uses=1]
%i.0 = trunc i64 %indvar to i32 ; <i32> [#uses=1]
%exitcond = icmp ne i64 %indvar, 1024 ; <i1> [#uses=1]
br i1 %exitcond, label %2, label %8
; <label>:2 ; preds = %1
%3 = icmp ne i32 %i.0, 512 ; <i1> [#uses=1]
br i1 %3, label %4, label %5
; <label>:4 ; preds = %2
store i32 1, i32* %scevgep
br label %6
; <label>:5 ; preds = %2
store i32 2, i32* %scevgep
br label %6
; <label>:6 ; preds = %5, %4
store i32 3, i32* %scevgep1
br label %7
; <label>:7 ; preds = %6
%indvar.next = add i64 %indvar, 1 ; <i64> [#uses=1]
br label %1
; <label>:8 ; preds = %1
fence seq_cst
ret void
}
define i32 @main() nounwind {
; <label>:0
call void @llvm.memset.p0i8.i64(i8* bitcast ([1024 x i32]* @A to i8*), i8 0, i64 4096, i32 1, i1 false)
call void @llvm.memset.p0i8.i64(i8* bitcast ([1024 x i32]* @B to i8*), i8 0, i64 4096, i32 1, i1 false)
call void @loop_with_condition_ineq()
br label %1
; <label>:1 ; preds = %8, %0
%indvar1 = phi i64 [ %indvar.next2, %8 ], [ 0, %0 ] ; <i64> [#uses=3]
%scevgep3 = getelementptr [1024 x i32]* @B, i64 0, i64 %indvar1 ; <i32*> [#uses=1]
%i.0 = trunc i64 %indvar1 to i32 ; <i32> [#uses=1]
%2 = icmp slt i32 %i.0, 1024 ; <i1> [#uses=1]
br i1 %2, label %3, label %9
; <label>:3 ; preds = %1
%4 = load i32* %scevgep3 ; <i32> [#uses=1]
%5 = icmp ne i32 %4, 3 ; <i1> [#uses=1]
br i1 %5, label %6, label %7
; <label>:6 ; preds = %3
br label %28
; <label>:7 ; preds = %3
br label %8
; <label>:8 ; preds = %7
%indvar.next2 = add i64 %indvar1, 1 ; <i64> [#uses=1]
br label %1
; <label>:9 ; preds = %1
br label %10
; <label>:10 ; preds = %26, %9
%indvar = phi i64 [ %indvar.next, %26 ], [ 0, %9 ] ; <i64> [#uses=3]
%scevgep = getelementptr [1024 x i32]* @A, i64 0, i64 %indvar ; <i32*> [#uses=2]
%i.1 = trunc i64 %indvar to i32 ; <i32> [#uses=3]
%11 = icmp slt i32 %i.1, 1024 ; <i1> [#uses=1]
br i1 %11, label %12, label %27
; <label>:12 ; preds = %10
%13 = icmp ne i32 %i.1, 512 ; <i1> [#uses=1]
br i1 %13, label %14, label %18
; <label>:14 ; preds = %12
%15 = load i32* %scevgep ; <i32> [#uses=1]
%16 = icmp ne i32 %15, 1 ; <i1> [#uses=1]
br i1 %16, label %17, label %18
; <label>:17 ; preds = %14
br label %28
; <label>:18 ; preds = %14, %12
%19 = icmp eq i32 %i.1, 1024 ; <i1> [#uses=1]
br i1 %19, label %20, label %24
; <label>:20 ; preds = %18
%21 = load i32* %scevgep ; <i32> [#uses=1]
%22 = icmp ne i32 %21, 2 ; <i1> [#uses=1]
br i1 %22, label %23, label %24
; <label>:23 ; preds = %20
br label %28
; <label>:24 ; preds = %20, %18
br label %25
; <label>:25 ; preds = %24
br label %26
; <label>:26 ; preds = %25
%indvar.next = add i64 %indvar, 1 ; <i64> [#uses=1]
br label %10
; <label>:27 ; preds = %10
br label %28
; <label>:28 ; preds = %27, %23, %17, %6
%.0 = phi i32 [ 1, %6 ], [ 1, %17 ], [ 1, %23 ], [ 0, %27 ] ; <i32> [#uses=1]
ret i32 %.0
}
declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i32, i1) nounwind
; CHECK: for (c2=0;c2<=511;c2++) {
; CHECK: Stmt_4(c2);
; CHECK: Stmt_6(c2);
; CHECK: }
; CHECK: Stmt_5(512);
; CHECK: Stmt_6(512);
; CHECK: for (c2=513;c2<=1023;c2++) {
; CHECK: Stmt_4(c2);
; CHECK: Stmt_6(c2);
; CHECK: }