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1; RUN: opt < %s "-passes=print<scalar-evolution>" -disable-output 2>&1 | FileCheck %s2 3; Convert (sext {-128,+,1}) to {sext(-128),+,sext(1)}, since the4; trip count is within range where this is safe.5 6target 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"7target triple = "x86_64-unknown-linux-gnu"8 9define void @foo(ptr nocapture %x) nounwind {10bb1.thread:11 br label %bb112 13bb1: ; preds = %bb1, %bb1.thread14 %i.0.reg2mem.0 = phi i64 [ -128, %bb1.thread ], [ %8, %bb1 ] ; <i64> [#uses=3]15; CHECK: %i.0.reg2mem.016; CHECK-NEXT: --> {-128,+,1}<nsw><%bb1>{{ U: [^ ]+ S: [^ ]+}}{{ *}}Exits: 12717 %0 = trunc i64 %i.0.reg2mem.0 to i8 ; <i8> [#uses=1]18; CHECK: %019; CHECK-NEXT: --> {-128,+,1}<%bb1>{{ U: [^ ]+ S: [^ ]+}}{{ *}}Exits: 12720 %1 = trunc i64 %i.0.reg2mem.0 to i9 ; <i8> [#uses=1]21; CHECK: %122; CHECK-NEXT: --> {-128,+,1}<%bb1>{{ U: [^ ]+ S: [^ ]+}}{{ *}}Exits: 12723 %2 = sext i9 %1 to i64 ; <i64> [#uses=1]24; CHECK: %225; CHECK-NEXT: --> {-128,+,1}<nsw><%bb1>{{ U: [^ ]+ S: [^ ]+}}{{ *}}Exits: 12726 %3 = getelementptr double, ptr %x, i64 %2 ; <ptr> [#uses=1]27 %4 = load double, ptr %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, ptr %x, i64 %6 ; <ptr> [#uses=1]31 store double %5, ptr %7, align 832 %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 %bb135 36return: ; preds = %bb137 ret void38}39