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llvm-6502/test/Analysis/ScalarEvolution/sext-inreg.ll
Dan Gohman 36b8e53fe0 Include the source type in SCEV cast expression debug output, and
print sext, zext, and trunc, instead of signextend, zeroextend,
and truncate, respectively, for consistency with the main IR.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70405 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-29 20:27:52 +00:00

31 lines
1.2 KiB
LLVM

; RUN: llvm-as < %s | opt -analyze -scalar-evolution -disable-output > %t
; RUN: grep {sext i57 \{0,+,199\}<bb> to i64} %t | count 1
; RUN: grep {sext i59 \{0,+,199\}<bb> to i64} %t | count 1
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
target triple = "i386-apple-darwin9.6"
define i64 @foo(i64* nocapture %x, i64 %n) nounwind {
entry:
%t0 = icmp sgt i64 %n, 0 ; <i1> [#uses=1]
br i1 %t0, label %bb, label %return
bb: ; preds = %bb, %entry
%i.01 = phi i64 [ 0, %entry ], [ %indvar.next, %bb ] ; <i32> [#uses=2]
%t1 = shl i64 %i.01, 7 ; <i32> [#uses=1]
%t2 = ashr i64 %t1, 7 ; <i32> [#uses=1]
%s1 = shl i64 %i.01, 5 ; <i32> [#uses=1]
%s2 = ashr i64 %s1, 5 ; <i32> [#uses=1]
%t3 = getelementptr i64* %x, i64 %i.01 ; <i64*> [#uses=1]
store i64 0, i64* %t3, align 1
%indvar.next = add i64 %i.01, 199 ; <i32> [#uses=2]
%exitcond = icmp eq i64 %indvar.next, %n ; <i1> [#uses=1]
br i1 %exitcond, label %return, label %bb
return: ; preds = %bb, %entry
%p = phi i64 [ 0, %entry ], [ %t2, %bb ]
%q = phi i64 [ 0, %entry ], [ %s2, %bb ]
%v = xor i64 %p, %q
ret i64 %v
}