1 ; RUN: opt < %s -indvars -S | FileCheck %s 2 ; PR4775 3 4 ; Indvars shouldn't sink the alloca out of the entry block, even though 5 ; it's not used until after the loop. 6 7 target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128" 8 target triple = "i386-apple-darwin10.0" 9 10 @llvm.used = appending global [1 x i8*] [i8* bitcast (i32 ()* @main to i8*)], 11 section "llvm.metadata" ; <[1 x i8*]*> [#uses=0] 12 13 define i32 @main() nounwind { 14 ; CHECK: entry: 15 ; CHECK-NEXT: %result.i = alloca i32, align 4 16 entry: 17 %result.i = alloca i32, align 4 ; <i32*> [#uses=2] 18 br label %while.cond 19 20 while.cond: ; preds = %while.cond, %entry 21 %call = call i32 @bar() nounwind ; <i32> [#uses=1] 22 %tobool = icmp eq i32 %call, 0 ; <i1> [#uses=1] 23 br i1 %tobool, label %while.end, label %while.cond 24 25 while.end: ; preds = %while.cond 26 volatile store i32 0, i32* %result.i 27 %tmp.i = volatile load i32* %result.i ; <i32> [#uses=0] 28 ret i32 0 29 } 30 31 declare i32 @bar() 32
