1 ; RUN: opt < %s "-passes=print<scalar-evolution>" -disable-output 2>&1 | FileCheck %s
3 ; Convert (sext {-128,+,1}) to {sext(-128),+,sext(1)}, since the
4 ; trip count is within range where this is safe.
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"
9 define void @foo(ptr nocapture %x) nounwind {
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}<nsw><%bb1>{{ U: [^ ]+ S: [^ ]+}}{{ *}}Exits: 127
17 %0 = trunc i64 %i.0.reg2mem.0 to i8 ; <i8> [#uses=1]
19 ; CHECK-NEXT: --> {-128,+,1}<%bb1>{{ U: [^ ]+ S: [^ ]+}}{{ *}}Exits: 127
20 %1 = trunc i64 %i.0.reg2mem.0 to i9 ; <i8> [#uses=1]
22 ; CHECK-NEXT: --> {-128,+,1}<%bb1>{{ U: [^ ]+ S: [^ ]+}}{{ *}}Exits: 127
23 %2 = sext i9 %1 to i64 ; <i64> [#uses=1]
25 ; CHECK-NEXT: --> {-128,+,1}<nsw><%bb1>{{ U: [^ ]+ S: [^ ]+}}{{ *}}Exits: 127
26 %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 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
36 return: ; preds = %bb1