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      1 ; RUN: opt < %s -scalar-evolution -analyze | FileCheck %s
      2 
      3 ; Convert (sext {-128,+,1}) to {sext(-128),+,sext(1)}, since the
      4 ; trip count is within range where this is safe.
      5 
      6 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"
      7 target triple = "x86_64-unknown-linux-gnu"
      8 
      9 define void @foo(double* nocapture %x) nounwind {
     10 bb1.thread:
     11 	br label %bb1
     12 
     13 bb1:		; preds = %bb1, %bb1.thread
     14 	%i.0.reg2mem.0 = phi i64 [ -128, %bb1.thread ], [ %8, %bb1 ]		; <i64> [#uses=3]
     15 ; CHECK: %i.0.reg2mem.0
     16 ; CHECK-NEXT: -->  {-128,+,1}<%bb1>		Exits: 127
     17 	%0 = trunc i64 %i.0.reg2mem.0 to i8		; <i8> [#uses=1]
     18 ; CHECK: %0
     19 ; CHECK-NEXT: -->  {-128,+,1}<%bb1>		Exits: 127
     20 	%1 = trunc i64 %i.0.reg2mem.0 to i9		; <i8> [#uses=1]
     21 ; CHECK: %1
     22 ; CHECK-NEXT: -->  {-128,+,1}<%bb1>		Exits: 127
     23 	%2 = sext i9 %1 to i64		; <i64> [#uses=1]
     24 ; CHECK: %2
     25 ; CHECK-NEXT: -->  {-128,+,1}<nsw><%bb1>	Exits: 127
     26 	%3 = getelementptr double* %x, i64 %2		; <double*> [#uses=1]
     27 	%4 = load double* %3, align 8		; <double> [#uses=1]
     28 	%5 = fmul double %4, 3.900000e+00		; <double> [#uses=1]
     29 	%6 = sext i8 %0 to i64		; <i64> [#uses=1]
     30 	%7 = getelementptr double* %x, i64 %6		; <double*> [#uses=1]
     31 	store double %5, double* %7, align 8
     32 	%8 = add i64 %i.0.reg2mem.0, 1		; <i64> [#uses=2]
     33 	%9 = icmp sgt i64 %8, 127		; <i1> [#uses=1]
     34 	br i1 %9, label %return, label %bb1
     35 
     36 return:		; preds = %bb1
     37 	ret void
     38 }
     39