mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-23 03:02:36 +01:00
39 lines
1.4 KiB
LLVM
39 lines
1.4 KiB
LLVM
; 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> Exits: 127
|
|
%0 = trunc i64 %i.0.reg2mem.0 to i8 ; <i8> [#uses=1]
|
|
; CHECK: %0
|
|
; CHECK-NEXT: --> {-128,+,1}<%bb1> Exits: 127
|
|
%1 = trunc i64 %i.0.reg2mem.0 to i9 ; <i8> [#uses=1]
|
|
; CHECK: %1
|
|
; CHECK-NEXT: --> {-128,+,1}<%bb1> Exits: 127
|
|
%2 = sext i9 %1 to i64 ; <i64> [#uses=1]
|
|
; CHECK: %2
|
|
; CHECK-NEXT: --> {-128,+,1}<nsw><%bb1> Exits: 127
|
|
%3 = getelementptr double* %x, i64 %2 ; <double*> [#uses=1]
|
|
%4 = load 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* %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
|
|
}
|