28 lines
744 B
LLVM
28 lines
744 B
LLVM
; RUN: llc -march=hexagon < %s | FileCheck %s
|
|
; Check that we generate 'cmpb.eq' instruction for a byte comparision.
|
|
|
|
@g0 = common global i8 0, align 1
|
|
|
|
; Function Attrs: nounwind
|
|
define i32 @f0(i32 %a0, i32 %a1) #0 {
|
|
b0:
|
|
%v0 = xor i32 %a1, %a0
|
|
%v1 = and i32 %v0, 255
|
|
%v2 = icmp eq i32 %v1, 0
|
|
br i1 %v2, label %b1, label %b2
|
|
; CHECK-NOT: xor(r{{[0-9]+}},r{{[0-9]+}})
|
|
; CHECK-NOT: zxtb(r{{[0-9]+}})
|
|
; CHECK: cmpb.eq(r{{[0-9]+}},r{{[0-9]+}})
|
|
|
|
b1: ; preds = %b0
|
|
%v3 = trunc i32 %a0 to i8
|
|
store i8 %v3, i8* @g0, align 1
|
|
br label %b2
|
|
|
|
b2: ; preds = %b1, %b0
|
|
%v4 = phi i32 [ 1, %b1 ], [ 0, %b0 ]
|
|
ret i32 %v4
|
|
}
|
|
|
|
attributes #0 = { nounwind }
|