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llvm-mirror/test/Analysis/ScalarEvolution/trip-count11.ll
Matt Arsenault 3089ca20bd Fix creating bitcasts between address spaces in SCEV.
The test before wasn't successfully testing this
since it was missing the datalayout piece to change
the size of the second address space.

llvm-svn: 193102
2013-10-21 18:41:10 +00:00

56 lines
2.0 KiB
LLVM

; RUN: opt < %s -analyze -scalar-evolution | FileCheck %s
target datalayout = "e-p:64:64:64-p1:16:16:16-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-S128"
target triple = "x86_64-unknown-linux-gnu"
@foo.a = internal constant [8 x i32] [i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7], align 16
@foo.a_as1 = internal addrspace(1) constant [8 x i32] [i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7], align 16
define i32 @foo() nounwind uwtable noinline {
entry:
br label %for.cond
for.cond: ; preds = %for.inc, %entry
%sum.0 = phi i32 [ 0, %entry ], [ %add, %for.inc ]
; CHECK: --> %sum.0 Exits: 28
%i.0 = phi i32 [ 0, %entry ], [ %inc, %for.inc ]
%cmp = icmp ult i32 %i.0, 8
br i1 %cmp, label %for.inc, label %for.end
for.inc: ; preds = %for.cond
%idxprom = sext i32 %i.0 to i64
%arrayidx = getelementptr inbounds [8 x i32]* @foo.a, i64 0, i64 %idxprom
%0 = load i32* %arrayidx, align 4
%add = add nsw i32 %sum.0, %0
%inc = add nsw i32 %i.0, 1
br label %for.cond
for.end: ; preds = %for.cond
ret i32 %sum.0
}
define i32 @foo_as1() nounwind uwtable noinline {
entry:
br label %for.cond
for.cond: ; preds = %for.inc, %entry
%sum.0 = phi i32 [ 0, %entry ], [ %add, %for.inc ]
; CHECK: --> %sum.0 Exits: 28
%i.0 = phi i32 [ 0, %entry ], [ %inc, %for.inc ]
%cmp = icmp ult i32 %i.0, 8
br i1 %cmp, label %for.inc, label %for.end
for.inc: ; preds = %for.cond
%idxprom = sext i32 %i.0 to i64
%arrayidx = getelementptr inbounds [8 x i32] addrspace(1)* @foo.a_as1, i64 0, i64 %idxprom
%0 = load i32 addrspace(1)* %arrayidx, align 4
%add = add nsw i32 %sum.0, %0
%inc = add nsw i32 %i.0, 1
br label %for.cond
for.end: ; preds = %for.cond
ret i32 %sum.0
}