Files
clang-p2996/polly/test/Isl/CodeGen/single_do_loop_scev_replace.ll
Tobias Grosser f4ee371e60 tests: Drop -polly-detect-unprofitable and -polly-no-early-exit
These flags are now always passed to all tests and need to be disabled if
not needed. Disabling these flags, rather than passing them to almost all
tests, significantly simplfies our RUN: lines.

llvm-svn: 249422
2015-10-06 15:36:44 +00:00

95 lines
3.2 KiB
LLVM

; RUN: opt %loadPolly -polly-ast -analyze < %s | FileCheck %s
;#define N 20
;#include "limits.h"
;#include <stdio.h>
;int A[2 * N];
;
;void single_do_loop_scev_replace() {
; int i;
;
; __sync_synchronize();
;
; i = 0;
;
; do {
; A[2 * i] = i;
; ++i;
; } while (i < N);
;
; __sync_synchronize();
;}
;
;int main () {
; int i;
;
; single_do_loop_scev_replace();
;
; fprintf(stdout, "Output %d\n", A[0]);
;
; if (A[2 * N - 2] == N - 1)
; return 0;
; else
; return 1;
;}
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"
%struct._IO_FILE = type { i32, i8*, i8*, i8*, i8*, i8*, i8*, i8*, i8*, i8*, i8*, i8*, %struct._IO_marker*, %struct._IO_FILE*, i32, i32, i64, i16, i8, [1 x i8], i8*, i64, i8*, i8*, i8*, i8*, i64, i32, [20 x i8] }
%struct._IO_marker = type { %struct._IO_marker*, %struct._IO_FILE*, i32 }
@A = common global [40 x i32] zeroinitializer, align 4 ; <[40 x i32]*> [#uses=3]
@stdout = external global %struct._IO_FILE* ; <%struct._IO_FILE**> [#uses=1]
@.str = private constant [11 x i8] c"Output %d\0A\00" ; <[11 x i8]*> [#uses=1]
define void @single_do_loop_scev_replace() nounwind {
entry:
fence seq_cst
br label %do.body
do.body: ; preds = %do.cond, %entry
%indvar = phi i64 [ %indvar.next, %do.cond ], [ 0, %entry ] ; <i64> [#uses=3]
%tmp = mul i64 %indvar, 2 ; <i64> [#uses=1]
%arrayidx = getelementptr [40 x i32], [40 x i32]* @A, i64 0, i64 %tmp ; <i32*> [#uses=1]
%i.0 = trunc i64 %indvar to i32 ; <i32> [#uses=1]
br label %do.cond
do.cond: ; preds = %do.body
store i32 %i.0, i32* %arrayidx
%indvar.next = add i64 %indvar, 1 ; <i64> [#uses=2]
%exitcond = icmp ne i64 %indvar.next, 20 ; <i1> [#uses=1]
br i1 %exitcond, label %do.body, label %do.end
do.end: ; preds = %do.cond
fence seq_cst
ret void
}
define i32 @main() nounwind {
entry:
call void @single_do_loop_scev_replace()
%tmp = load %struct._IO_FILE*, %struct._IO_FILE** @stdout ; <%struct._IO_FILE*> [#uses=1]
%tmp1 = load i32, i32* getelementptr inbounds ([40 x i32], [40 x i32]* @A, i32 0, i32 0) ; <i32> [#uses=1]
%call = call i32 (%struct._IO_FILE*, i8*, ...) @fprintf(%struct._IO_FILE* %tmp, i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i32 0, i32 0), i32 %tmp1) ; <i32> [#uses=0]
%tmp2 = load i32, i32* getelementptr inbounds ([40 x i32], [40 x i32]* @A, i32 0, i64 38) ; <i32> [#uses=1]
%cmp = icmp eq i32 %tmp2, 19 ; <i1> [#uses=1]
br i1 %cmp, label %if.then, label %if.else
if.then: ; preds = %entry
br label %return
if.else: ; preds = %entry
br label %return
return: ; preds = %if.else, %if.then
%retval.0 = phi i32 [ 0, %if.then ], [ 1, %if.else ] ; <i32> [#uses=1]
ret i32 %retval.0
}
declare i32 @fprintf(%struct._IO_FILE*, i8*, ...)
; CHECK: for (int c0 = 0; c0 <= 19; c0 += 1)
; CHECK: Stmt_do_cond(c0);