Files
clang-p2996/polly/test/Isl/CodeGen/loop_with_condition_2.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

141 lines
5.1 KiB
LLVM

; RUN: opt %loadPolly -basicaa -polly-ast -polly-ast-detect-parallel -analyze < %s | FileCheck %s
; Verify that we actually detect this loop as the innermost loop even though
; there is a conditional inside.
; CHECK: #pragma simd
; CHECK: for (int c0 = 0; c0 <= 1023; c0 += 1) {
; CHECK: if (c0 >= m + 1025) {
; CHECK: Stmt_if_else(c0);
; CHECK: } else
; CHECK: Stmt_if_then(c0);
; CHECK: Stmt_if_end(c0);
; CHECK: }
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"
@A = common global [1024 x i32] zeroinitializer, align 16
@B = common global [1024 x i32] zeroinitializer, align 16
define void @loop_with_condition(i32 %m) nounwind {
entry:
fence seq_cst
%tmp = sub i32 0, %m
%tmp1 = zext i32 %tmp to i64
br label %for.cond
for.cond: ; preds = %for.inc, %entry
%indvar = phi i64 [ %indvar.next, %for.inc ], [ 0, %entry ]
%arrayidx = getelementptr [1024 x i32], [1024 x i32]* @A, i64 0, i64 %indvar
%arrayidx10 = getelementptr [1024 x i32], [1024 x i32]* @B, i64 0, i64 %indvar
%tmp2 = add i64 %tmp1, %indvar
%sub = trunc i64 %tmp2 to i32
%exitcond = icmp ne i64 %indvar, 1024
br i1 %exitcond, label %for.body, label %for.end
for.body: ; preds = %for.cond
%cmp3 = icmp sle i32 %sub, 1024
br i1 %cmp3, label %if.then, label %if.else
if.then: ; preds = %for.body
store i32 1, i32* %arrayidx
br label %if.end
if.else: ; preds = %for.body
store i32 2, i32* %arrayidx
br label %if.end
if.end: ; preds = %if.else, %if.then
store i32 3, i32* %arrayidx10
br label %for.inc
for.inc: ; preds = %if.end
%indvar.next = add i64 %indvar, 1
br label %for.cond
for.end: ; preds = %for.cond
fence seq_cst
ret void
}
define i32 @main() nounwind {
entry:
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(i32 5)
br label %for.cond
for.cond: ; preds = %for.inc, %entry
%indvar1 = phi i64 [ %indvar.next2, %for.inc ], [ 0, %entry ]
%arrayidx = getelementptr [1024 x i32], [1024 x i32]* @B, i64 0, i64 %indvar1
%i.0 = trunc i64 %indvar1 to i32
%cmp = icmp slt i32 %i.0, 1024
br i1 %cmp, label %for.body, label %for.end
for.body: ; preds = %for.cond
%tmp3 = load i32, i32* %arrayidx
%cmp4 = icmp ne i32 %tmp3, 3
br i1 %cmp4, label %if.then, label %if.end
if.then: ; preds = %for.body
br label %return
if.end: ; preds = %for.body
br label %for.inc
for.inc: ; preds = %if.end
%indvar.next2 = add i64 %indvar1, 1
br label %for.cond
for.end: ; preds = %for.cond
br label %for.cond6
for.cond6: ; preds = %for.inc12, %for.end
%indvar = phi i64 [ %indvar.next, %for.inc12 ], [ 0, %for.end ]
%arrayidx15 = getelementptr [1024 x i32], [1024 x i32]* @A, i64 0, i64 %indvar
%i.1 = trunc i64 %indvar to i32
%cmp8 = icmp slt i32 %i.1, 1024
br i1 %cmp8, label %for.body9, label %for.end35
for.body9: ; preds = %for.cond6
br i1 true, label %land.lhs.true, label %if.else
land.lhs.true: ; preds = %for.body9
%tmp16 = load i32, i32* %arrayidx15
%cmp17 = icmp ne i32 %tmp16, 1
br i1 %cmp17, label %if.then18, label %if.else
if.then18: ; preds = %land.lhs.true
br label %return
if.else: ; preds = %land.lhs.true, %for.body9
br i1 false, label %land.lhs.true23, label %if.end30
land.lhs.true23: ; preds = %if.else
%tmp27 = load i32, i32* %arrayidx15
%cmp28 = icmp ne i32 %tmp27, 2
br i1 %cmp28, label %if.then29, label %if.end30
if.then29: ; preds = %land.lhs.true23
br label %return
if.end30: ; preds = %land.lhs.true23, %if.else
br label %if.end31
if.end31: ; preds = %if.end30
br label %for.inc12
for.inc12: ; preds = %if.end31
%indvar.next = add i64 %indvar, 1
br label %for.cond6
for.end35: ; preds = %for.cond6
br label %return
return: ; preds = %for.end35, %if.then29, %if.then18, %if.then
%retval.0 = phi i32 [ 1, %if.then ], [ 1, %if.then18 ], [ 1, %if.then29 ], [ 0, %for.end35 ]
ret i32 %retval.0
}
declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i32, i1) nounwind