Home | History | Annotate | Download | only in GlobalOpt
      1 ; RUN: opt %s -globalopt -S | FileCheck %s
      2 
      3 @a = internal global i32 0, align 4
      4 @b = internal global i32 0, align 4
      5 @c = internal global i32 0, align 4
      6 @d = internal constant [4 x i8] c"foo\00", align 1
      7 
      8 ; CHECK: @a = internal global i32 0, align 4
      9 ; CHECK: @b = internal global i32 0, align 4
     10 ; CHECK: @c = internal unnamed_addr global i32 0, align 4
     11 ; CHECK: @d = internal unnamed_addr constant [4 x i8] c"foo\00", align 1
     12 
     13 define i1 @bah(i64 %i) nounwind readonly optsize ssp {
     14 entry:
     15   %arrayidx4 = getelementptr inbounds [4 x i8]* @d, i64 0, i64 %i
     16   %tmp5 = load i8* %arrayidx4, align 1
     17   %cmp = icmp eq i8 %tmp5, 42
     18   ret i1 %cmp
     19 }
     20 
     21 define void @baz(i32 %x) {
     22 entry:
     23   store i32 %x, i32* @a, align 4
     24   store i32 %x, i32* @b, align 4
     25   store i32 %x, i32* @c, align 4
     26   ret void
     27 }
     28 
     29 define i32 @foo(i32* %x) nounwind readnone optsize ssp {
     30 entry:
     31   %cmp = icmp eq i32* %x, @a
     32   %conv = zext i1 %cmp to i32
     33   ret i32 %conv
     34 }
     35 
     36 define i32 @bar() {
     37 entry:
     38   switch i64 ptrtoint (i32* @b to i64), label %sw.epilog [
     39     i64 1, label %return
     40     i64 0, label %return
     41   ]
     42 
     43 sw.epilog:
     44   ret i32 0
     45 
     46 return:
     47   ret i32 1
     48 }
     49 
     50 define i32 @zed() {
     51 entry:
     52   %tmp1 = load i32* @c, align 4
     53   ret i32 %tmp1
     54 }
     55