forked from OSchip/llvm-project
53 lines
1.5 KiB
LLVM
53 lines
1.5 KiB
LLVM
|
; RUN: llc -march=hexagon -enable-pipeliner < %s
|
||
|
|
; REQUIRES: asserts
|
||
|
|
|
||
|
|
; This test checks that we don't assert when the Phi value from the
|
||
|
|
; loop is actually defined prior to the loop, e.g., from CSE.
|
||
|
|
|
||
|
|
define fastcc void @f0() {
|
||
|
|
b0:
|
||
|
|
br i1 undef, label %b10, label %b1
|
||
|
|
|
||
|
|
b1: ; preds = %b0
|
||
|
|
br i1 undef, label %b3, label %b2
|
||
|
|
|
||
|
|
b2: ; preds = %b1
|
||
|
|
br label %b8
|
||
|
|
|
||
|
|
b3: ; preds = %b1
|
||
|
|
br i1 undef, label %b4, label %b6
|
||
|
|
|
||
|
|
b4: ; preds = %b3
|
||
|
|
%v0 = load i16, i16* undef, align 2
|
||
|
|
br label %b7
|
||
|
|
|
||
|
|
b5: ; preds = %b7
|
||
|
|
br label %b6
|
||
|
|
|
||
|
|
b6: ; preds = %b5, %b3
|
||
|
|
%v1 = phi i16 [ %v9, %b5 ], [ 0, %b3 ]
|
||
|
|
br i1 undef, label %b10, label %b9
|
||
|
|
|
||
|
|
b7: ; preds = %b7, %b4
|
||
|
|
%v2 = phi i16 [ 0, %b7 ], [ %v0, %b4 ]
|
||
|
|
%v3 = phi i16 [ %v9, %b7 ], [ 0, %b4 ]
|
||
|
|
%v4 = phi i32 [ %v10, %b7 ], [ undef, %b4 ]
|
||
|
|
%v5 = or i16 0, %v3
|
||
|
|
%v6 = or i16 0, %v5
|
||
|
|
%v7 = or i16 0, %v6
|
||
|
|
%v8 = lshr i16 %v2, 8
|
||
|
|
%v9 = or i16 %v8, %v7
|
||
|
|
%v10 = add nsw i32 %v4, -32
|
||
|
|
%v11 = icmp sgt i32 %v10, 31
|
||
|
|
br i1 %v11, label %b7, label %b5
|
||
|
|
|
||
|
|
b8: ; preds = %b8, %b2
|
||
|
|
br label %b8
|
||
|
|
|
||
|
|
b9: ; preds = %b6
|
||
|
|
br label %b10
|
||
|
|
|
||
|
|
b10: ; preds = %b9, %b6, %b0
|
||
|
|
ret void
|
||
|
|
}
|