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      1 ; REQUIRES: asserts
      2 ; XFAIL: *
      3 ; RUN: llc -O0 -verify-machineinstrs -asm-verbose=0 -march=r600 -mcpu=SI < %s | FileCheck -check-prefix=SI -check-prefix=COMMON %s
      4 ; RUN: llc -O0 -verify-machineinstrs -asm-verbose=0 -march=r600 -mcpu=redwood < %s | FileCheck -check-prefix=EG -check-prefix=COMMON %s
      5 
      6 ; SI hits an assertion at -O0, evergreen hits a not implemented unreachable.
      7 
      8 ; COMMON-LABEL: @branch_true:
      9 define void @branch_true(i8 addrspace(1)* nocapture %main, i32 %main_stride) #0 {
     10 entry:
     11   br i1 true, label %for.end, label %for.body.lr.ph
     12 
     13 for.body.lr.ph:                                   ; preds = %entry
     14   %add.ptr.sum = shl i32 %main_stride, 1
     15   %add.ptr1.sum = add i32 %add.ptr.sum, %main_stride
     16   %add.ptr4.sum = shl i32 %main_stride, 2
     17   br label %for.body
     18 
     19 for.body:                                         ; preds = %for.body, %for.body.lr.ph
     20   %main.addr.011 = phi i8 addrspace(1)* [ %main, %for.body.lr.ph ], [ %add.ptr6, %for.body ]
     21   %0 = bitcast i8 addrspace(1)* %main.addr.011 to i32 addrspace(1)*
     22   %1 = load i32 addrspace(1)* %0, align 4
     23   %add.ptr = getelementptr inbounds i8 addrspace(1)* %main.addr.011, i32 %main_stride
     24   %2 = bitcast i8 addrspace(1)* %add.ptr to i32 addrspace(1)*
     25   %3 = load i32 addrspace(1)* %2, align 4
     26   %add.ptr1 = getelementptr inbounds i8 addrspace(1)* %main.addr.011, i32 %add.ptr.sum
     27   %4 = bitcast i8 addrspace(1)* %add.ptr1 to i32 addrspace(1)*
     28   %5 = load i32 addrspace(1)* %4, align 4
     29   %add.ptr2 = getelementptr inbounds i8 addrspace(1)* %main.addr.011, i32 %add.ptr1.sum
     30   %6 = bitcast i8 addrspace(1)* %add.ptr2 to i32 addrspace(1)*
     31   %7 = load i32 addrspace(1)* %6, align 4
     32   %add.ptr3 = getelementptr inbounds i8 addrspace(1)* %main.addr.011, i32 %add.ptr4.sum
     33   %8 = bitcast i8 addrspace(1)* %add.ptr3 to i32 addrspace(1)*
     34   %9 = load i32 addrspace(1)* %8, align 4
     35   %add.ptr6 = getelementptr inbounds i8 addrspace(1)* %main.addr.011, i32 undef
     36   br i1 undef, label %for.end, label %for.body
     37 
     38 for.end:                                          ; preds = %for.body, %entry
     39   ret void
     40 }
     41 
     42 ; COMMON-LABEL: @branch_false:
     43 ; SI: .text
     44 ; SI-NEXT: S_ENDPGM
     45 define void @branch_false(i8 addrspace(1)* nocapture %main, i32 %main_stride) #0 {
     46 entry:
     47   br i1 false, label %for.end, label %for.body.lr.ph
     48 
     49 for.body.lr.ph:                                   ; preds = %entry
     50   %add.ptr.sum = shl i32 %main_stride, 1
     51   %add.ptr1.sum = add i32 %add.ptr.sum, %main_stride
     52   %add.ptr4.sum = shl i32 %main_stride, 2
     53   br label %for.body
     54 
     55 for.body:                                         ; preds = %for.body, %for.body.lr.ph
     56   %main.addr.011 = phi i8 addrspace(1)* [ %main, %for.body.lr.ph ], [ %add.ptr6, %for.body ]
     57   %0 = bitcast i8 addrspace(1)* %main.addr.011 to i32 addrspace(1)*
     58   %1 = load i32 addrspace(1)* %0, align 4
     59   %add.ptr = getelementptr inbounds i8 addrspace(1)* %main.addr.011, i32 %main_stride
     60   %2 = bitcast i8 addrspace(1)* %add.ptr to i32 addrspace(1)*
     61   %3 = load i32 addrspace(1)* %2, align 4
     62   %add.ptr1 = getelementptr inbounds i8 addrspace(1)* %main.addr.011, i32 %add.ptr.sum
     63   %4 = bitcast i8 addrspace(1)* %add.ptr1 to i32 addrspace(1)*
     64   %5 = load i32 addrspace(1)* %4, align 4
     65   %add.ptr2 = getelementptr inbounds i8 addrspace(1)* %main.addr.011, i32 %add.ptr1.sum
     66   %6 = bitcast i8 addrspace(1)* %add.ptr2 to i32 addrspace(1)*
     67   %7 = load i32 addrspace(1)* %6, align 4
     68   %add.ptr3 = getelementptr inbounds i8 addrspace(1)* %main.addr.011, i32 %add.ptr4.sum
     69   %8 = bitcast i8 addrspace(1)* %add.ptr3 to i32 addrspace(1)*
     70   %9 = load i32 addrspace(1)* %8, align 4
     71   %add.ptr6 = getelementptr inbounds i8 addrspace(1)* %main.addr.011, i32 undef
     72   br i1 undef, label %for.end, label %for.body
     73 
     74 for.end:                                          ; preds = %for.body, %entry
     75   ret void
     76 }
     77 
     78 ; COMMON-LABEL: @branch_undef:
     79 ; SI: .text
     80 ; SI-NEXT: S_ENDPGM
     81 define void @branch_undef(i8 addrspace(1)* nocapture %main, i32 %main_stride) #0 {
     82 entry:
     83   br i1 undef, label %for.end, label %for.body.lr.ph
     84 
     85 for.body.lr.ph:                                   ; preds = %entry
     86   %add.ptr.sum = shl i32 %main_stride, 1
     87   %add.ptr1.sum = add i32 %add.ptr.sum, %main_stride
     88   %add.ptr4.sum = shl i32 %main_stride, 2
     89   br label %for.body
     90 
     91 for.body:                                         ; preds = %for.body, %for.body.lr.ph
     92   %main.addr.011 = phi i8 addrspace(1)* [ %main, %for.body.lr.ph ], [ %add.ptr6, %for.body ]
     93   %0 = bitcast i8 addrspace(1)* %main.addr.011 to i32 addrspace(1)*
     94   %1 = load i32 addrspace(1)* %0, align 4
     95   %add.ptr = getelementptr inbounds i8 addrspace(1)* %main.addr.011, i32 %main_stride
     96   %2 = bitcast i8 addrspace(1)* %add.ptr to i32 addrspace(1)*
     97   %3 = load i32 addrspace(1)* %2, align 4
     98   %add.ptr1 = getelementptr inbounds i8 addrspace(1)* %main.addr.011, i32 %add.ptr.sum
     99   %4 = bitcast i8 addrspace(1)* %add.ptr1 to i32 addrspace(1)*
    100   %5 = load i32 addrspace(1)* %4, align 4
    101   %add.ptr2 = getelementptr inbounds i8 addrspace(1)* %main.addr.011, i32 %add.ptr1.sum
    102   %6 = bitcast i8 addrspace(1)* %add.ptr2 to i32 addrspace(1)*
    103   %7 = load i32 addrspace(1)* %6, align 4
    104   %add.ptr3 = getelementptr inbounds i8 addrspace(1)* %main.addr.011, i32 %add.ptr4.sum
    105   %8 = bitcast i8 addrspace(1)* %add.ptr3 to i32 addrspace(1)*
    106   %9 = load i32 addrspace(1)* %8, align 4
    107   %add.ptr6 = getelementptr inbounds i8 addrspace(1)* %main.addr.011, i32 undef
    108   br i1 undef, label %for.end, label %for.body
    109 
    110 for.end:                                          ; preds = %for.body, %entry
    111   ret void
    112 }
    113 
    114 attributes #0 = { nounwind }
    115