| ; RUN: opt < %s -scalar-evolution -analyze | FileCheck %s |
| |
| ; Convert (sext {-128,+,1}) to {sext(-128),+,sext(1)}, since the |
| ; trip count is within range where this is safe. |
| |
| 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" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| define void @foo(double* nocapture %x) nounwind { |
| bb1.thread: |
| br label %bb1 |
| |
| bb1: ; preds = %bb1, %bb1.thread |
| %i.0.reg2mem.0 = phi i64 [ -128, %bb1.thread ], [ %8, %bb1 ] ; <i64> [#uses=3] |
| ; CHECK: %i.0.reg2mem.0 |
| ; CHECK-NEXT: --> {-128,+,1}<%bb1>{{ U: [^ ]+ S: [^ ]+}}{{ *}}Exits: 127 |
| %0 = trunc i64 %i.0.reg2mem.0 to i8 ; <i8> [#uses=1] |
| ; CHECK: %0 |
| ; CHECK-NEXT: --> {-128,+,1}<%bb1>{{ U: [^ ]+ S: [^ ]+}}{{ *}}Exits: 127 |
| %1 = trunc i64 %i.0.reg2mem.0 to i9 ; <i8> [#uses=1] |
| ; CHECK: %1 |
| ; CHECK-NEXT: --> {-128,+,1}<%bb1>{{ U: [^ ]+ S: [^ ]+}}{{ *}}Exits: 127 |
| %2 = sext i9 %1 to i64 ; <i64> [#uses=1] |
| ; CHECK: %2 |
| ; CHECK-NEXT: --> {-128,+,1}<nsw><%bb1>{{ U: [^ ]+ S: [^ ]+}}{{ *}}Exits: 127 |
| %3 = getelementptr double, double* %x, i64 %2 ; <double*> [#uses=1] |
| %4 = load double, double* %3, align 8 ; <double> [#uses=1] |
| %5 = fmul double %4, 3.900000e+00 ; <double> [#uses=1] |
| %6 = sext i8 %0 to i64 ; <i64> [#uses=1] |
| %7 = getelementptr double, double* %x, i64 %6 ; <double*> [#uses=1] |
| store double %5, double* %7, align 8 |
| %8 = add i64 %i.0.reg2mem.0, 1 ; <i64> [#uses=2] |
| %9 = icmp sgt i64 %8, 127 ; <i1> [#uses=1] |
| br i1 %9, label %return, label %bb1 |
| |
| return: ; preds = %bb1 |
| ret void |
| } |
